> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://openrouter.ai/docs/llms.txt. > For full documentation content, see https://openrouter.ai/docs/llms-full.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://openrouter.ai/docs/_mcp/server. # Create a preset from a chat-completions request body POST https://openrouter.ai/api/v1/presets/{slug}/chat/completions Content-Type: application/json Creates a preset (or a new version of an existing one) from an inference request body. Only fields that overlap with the preset config are persisted; other fields (e.g. `messages`, `stream`, `prompt`) are silently ignored. Reference: https://openrouter.ai/docs/api/api-reference/presets/create-presets-chat-completions ## OpenAPI Specification ```yaml openapi: 3.1.0 info: title: OpenRouter API version: 1.0.0 paths: /presets/{slug}/chat/completions: post: operationId: create-presets-chat-completions summary: Create a preset from a chat-completions request body description: >- Creates a preset (or a new version of an existing one) from an inference request body. Only fields that overlap with the preset config are persisted; other fields (e.g. `messages`, `stream`, `prompt`) are silently ignored. tags: - subpackage_presets parameters: - name: slug in: path description: URL-safe slug identifying the preset. Created if it does not exist. required: true schema: type: string - name: Authorization in: header description: API key as bearer token in Authorization header required: true schema: type: string responses: '200': description: Preset created or updated successfully. content: application/json: schema: $ref: '#/components/schemas/CreatePresetFromInferenceResponse' '400': description: Bad Request - Invalid request parameters or malformed input content: application/json: schema: $ref: '#/components/schemas/BadRequestResponse' '401': description: Unauthorized - Authentication required or invalid credentials content: application/json: schema: $ref: '#/components/schemas/UnauthorizedResponse' '403': description: Forbidden - Authentication successful but insufficient permissions content: application/json: schema: $ref: '#/components/schemas/ForbiddenResponse' '404': description: Not Found - Resource does not exist content: application/json: schema: $ref: '#/components/schemas/NotFoundResponse' '409': description: Conflict - Resource conflict or concurrent modification content: application/json: schema: $ref: '#/components/schemas/ConflictResponse' '500': description: Internal Server Error - Unexpected server error content: application/json: schema: $ref: '#/components/schemas/InternalServerResponse' requestBody: content: application/json: schema: $ref: '#/components/schemas/ChatRequest' servers: - url: https://openrouter.ai/api/v1 components: schemas: AnthropicCacheControlTtl: type: string enum: - 5m - 1h title: AnthropicCacheControlTtl AnthropicCacheControlDirectiveType: type: string enum: - ephemeral title: AnthropicCacheControlDirectiveType AnthropicCacheControlDirective: type: object properties: ttl: $ref: '#/components/schemas/AnthropicCacheControlTtl' type: $ref: '#/components/schemas/AnthropicCacheControlDirectiveType' required: - type description: >- Enable automatic prompt caching. When set at the top level, the system automatically applies cache breakpoints to the last cacheable block in the request. Currently supported for Anthropic Claude models. title: AnthropicCacheControlDirective ChatDebugOptions: type: object properties: echo_upstream_body: type: boolean description: >- If true, includes the transformed upstream request body in a debug chunk at the start of the stream. Only works with streaming mode. description: Debug options for inspecting request transformations (streaming only) title: ChatDebugOptions ImageConfig: oneOf: - type: string - type: number format: double - type: array items: description: Any type title: ImageConfig ChatAudioOutput: type: object properties: data: type: string description: Base64 encoded audio data expires_at: type: integer description: Audio expiration timestamp id: type: string description: Audio output identifier transcript: type: string description: Audio transcript description: Audio output data or reference title: ChatAudioOutput ChatContentItemsDiscriminatorMappingFileFile: type: object properties: file_data: type: string description: File content as base64 data URL or URL file_id: type: string description: File ID for previously uploaded files filename: type: string description: Original filename title: ChatContentItemsDiscriminatorMappingFileFile ChatContentItemsDiscriminatorMappingImageUrlImageUrlDetail: type: string enum: - auto - low - high description: Image detail level for vision models title: ChatContentItemsDiscriminatorMappingImageUrlImageUrlDetail ChatContentItemsDiscriminatorMappingImageUrlImageUrl: type: object properties: detail: $ref: >- #/components/schemas/ChatContentItemsDiscriminatorMappingImageUrlImageUrlDetail description: Image detail level for vision models url: type: string description: 'URL of the image (data: URLs supported)' required: - url title: ChatContentItemsDiscriminatorMappingImageUrlImageUrl ChatContentItemsDiscriminatorMappingInputAudioInputAudio: type: object properties: data: type: string description: Base64 encoded audio data format: type: string description: >- Audio format (e.g., wav, mp3, flac, m4a, ogg, aiff, aac, pcm16, pcm24). Supported formats vary by provider. required: - data - format title: ChatContentItemsDiscriminatorMappingInputAudioInputAudio LegacyChatContentVideoType: type: string enum: - input_video title: LegacyChatContentVideoType ChatContentVideoInput: type: object properties: url: type: string description: 'URL of the video (data: URLs supported)' required: - url description: Video input object title: ChatContentVideoInput ChatContentCacheControlType: type: string enum: - ephemeral title: ChatContentCacheControlType ChatContentCacheControl: type: object properties: ttl: $ref: '#/components/schemas/AnthropicCacheControlTtl' type: $ref: '#/components/schemas/ChatContentCacheControlType' required: - type description: Cache control for the content part title: ChatContentCacheControl ChatContentTextType: type: string enum: - text title: ChatContentTextType ChatContentVideoType: type: string enum: - video_url title: ChatContentVideoType ChatContentItems: oneOf: - type: object properties: type: type: string enum: - file description: 'Discriminator value: file' file: $ref: >- #/components/schemas/ChatContentItemsDiscriminatorMappingFileFile required: - type - file description: File content part for document processing - type: object properties: type: type: string enum: - image_url description: 'Discriminator value: image_url' image_url: $ref: >- #/components/schemas/ChatContentItemsDiscriminatorMappingImageUrlImageUrl required: - type - image_url description: Image content part for vision models - type: object properties: type: type: string enum: - input_audio description: 'Discriminator value: input_audio' input_audio: $ref: >- #/components/schemas/ChatContentItemsDiscriminatorMappingInputAudioInputAudio required: - type - input_audio description: Audio input content part. Supported audio formats vary by provider. - type: object properties: type: $ref: '#/components/schemas/LegacyChatContentVideoType' video_url: $ref: '#/components/schemas/ChatContentVideoInput' required: - type - video_url description: Video input content part (legacy format - deprecated) - type: object properties: type: $ref: '#/components/schemas/ChatContentTextType' cache_control: $ref: '#/components/schemas/ChatContentCacheControl' text: type: string required: - type - text description: Text content part - type: object properties: type: $ref: '#/components/schemas/ChatContentVideoType' video_url: $ref: '#/components/schemas/ChatContentVideoInput' required: - type - video_url description: Video input content part discriminator: propertyName: type description: Content part for chat completion messages title: ChatContentItems ChatMessagesDiscriminatorMappingAssistantContent1: type: array items: $ref: '#/components/schemas/ChatContentItems' title: ChatMessagesDiscriminatorMappingAssistantContent1 ChatMessagesDiscriminatorMappingAssistantContent: oneOf: - type: string - $ref: >- #/components/schemas/ChatMessagesDiscriminatorMappingAssistantContent1 - description: Any type description: Assistant message content title: ChatMessagesDiscriminatorMappingAssistantContent ChatAssistantImagesItemsImageUrl: type: object properties: url: type: string description: URL or base64-encoded data of the generated image required: - url title: ChatAssistantImagesItemsImageUrl ChatAssistantImagesItems: type: object properties: image_url: $ref: '#/components/schemas/ChatAssistantImagesItemsImageUrl' required: - image_url title: ChatAssistantImagesItems ChatAssistantImages: type: array items: $ref: '#/components/schemas/ChatAssistantImagesItems' description: Generated images from image generation models title: ChatAssistantImages ReasoningFormat: type: string enum: - unknown - openai-responses-v1 - azure-openai-responses-v1 - xai-responses-v1 - anthropic-claude-v1 - google-gemini-v1 title: ReasoningFormat ReasoningDetailUnion: oneOf: - type: object properties: type: type: string enum: - reasoning.encrypted description: 'Discriminator value: reasoning.encrypted' data: type: string format: $ref: '#/components/schemas/ReasoningFormat' id: type: - string - 'null' index: type: integer required: - type - data description: Reasoning detail encrypted schema - type: object properties: type: type: string enum: - reasoning.summary description: 'Discriminator value: reasoning.summary' format: $ref: '#/components/schemas/ReasoningFormat' id: type: - string - 'null' index: type: integer summary: type: string required: - type - summary description: Reasoning detail summary schema - type: object properties: type: type: string enum: - reasoning.text description: 'Discriminator value: reasoning.text' format: $ref: '#/components/schemas/ReasoningFormat' id: type: - string - 'null' index: type: integer signature: type: - string - 'null' text: type: - string - 'null' required: - type description: Reasoning detail text schema discriminator: propertyName: type description: Reasoning detail union schema title: ReasoningDetailUnion ChatReasoningDetails: type: array items: $ref: '#/components/schemas/ReasoningDetailUnion' description: Reasoning details for extended thinking models title: ChatReasoningDetails ChatToolCallFunction: type: object properties: arguments: type: string description: Function arguments as JSON string name: type: string description: Function name to call required: - arguments - name title: ChatToolCallFunction ChatToolCallType: type: string enum: - function title: ChatToolCallType ChatToolCall: type: object properties: function: $ref: '#/components/schemas/ChatToolCallFunction' id: type: string description: Tool call identifier type: $ref: '#/components/schemas/ChatToolCallType' required: - function - id - type description: Tool call made by the assistant title: ChatToolCall ChatContentText: type: object properties: cache_control: $ref: '#/components/schemas/ChatContentCacheControl' text: type: string type: $ref: '#/components/schemas/ChatContentTextType' required: - text - type description: Text content part title: ChatContentText ChatMessagesDiscriminatorMappingDeveloperContent1: type: array items: $ref: '#/components/schemas/ChatContentText' title: ChatMessagesDiscriminatorMappingDeveloperContent1 ChatMessagesDiscriminatorMappingDeveloperContent: oneOf: - type: string - $ref: >- #/components/schemas/ChatMessagesDiscriminatorMappingDeveloperContent1 description: Developer message content title: ChatMessagesDiscriminatorMappingDeveloperContent ChatSystemMessageContent1: type: array items: $ref: '#/components/schemas/ChatContentText' title: ChatSystemMessageContent1 ChatSystemMessageContent: oneOf: - type: string - $ref: '#/components/schemas/ChatSystemMessageContent1' description: System message content title: ChatSystemMessageContent ChatSystemMessageRole: type: string enum: - system title: ChatSystemMessageRole ChatToolMessageContent1: type: array items: $ref: '#/components/schemas/ChatContentItems' title: ChatToolMessageContent1 ChatToolMessageContent: oneOf: - type: string - $ref: '#/components/schemas/ChatToolMessageContent1' description: Tool response content title: ChatToolMessageContent ChatToolMessageRole: type: string enum: - tool title: ChatToolMessageRole ChatUserMessageContent1: type: array items: $ref: '#/components/schemas/ChatContentItems' title: ChatUserMessageContent1 ChatUserMessageContent: oneOf: - type: string - $ref: '#/components/schemas/ChatUserMessageContent1' description: User message content title: ChatUserMessageContent ChatUserMessageRole: type: string enum: - user title: ChatUserMessageRole ChatMessages: oneOf: - type: object properties: role: type: string enum: - assistant description: 'Discriminator value: assistant' audio: $ref: '#/components/schemas/ChatAudioOutput' content: $ref: >- #/components/schemas/ChatMessagesDiscriminatorMappingAssistantContent description: Assistant message content images: $ref: '#/components/schemas/ChatAssistantImages' name: type: string description: Optional name for the assistant reasoning: type: - string - 'null' description: Reasoning output reasoning_details: $ref: '#/components/schemas/ChatReasoningDetails' refusal: type: - string - 'null' description: Refusal message if content was refused tool_calls: type: array items: $ref: '#/components/schemas/ChatToolCall' description: Tool calls made by the assistant required: - role description: Assistant message for requests and responses - type: object properties: role: type: string enum: - developer description: 'Discriminator value: developer' content: $ref: >- #/components/schemas/ChatMessagesDiscriminatorMappingDeveloperContent description: Developer message content name: type: string description: Optional name for the developer message required: - role - content description: Developer message - type: object properties: role: $ref: '#/components/schemas/ChatSystemMessageRole' content: $ref: '#/components/schemas/ChatSystemMessageContent' description: System message content name: type: string description: Optional name for the system message required: - role - content description: System message for setting behavior - type: object properties: role: $ref: '#/components/schemas/ChatToolMessageRole' content: $ref: '#/components/schemas/ChatToolMessageContent' description: Tool response content tool_call_id: type: string description: ID of the assistant message tool call this message responds to required: - role - content - tool_call_id description: Tool response message - type: object properties: role: $ref: '#/components/schemas/ChatUserMessageRole' content: $ref: '#/components/schemas/ChatUserMessageContent' description: User message content name: type: string description: Optional name for the user required: - role - content description: User message discriminator: propertyName: role description: Chat completion message with role-based discrimination title: ChatMessages ChatRequestModalitiesItems: type: string enum: - text - image - audio title: ChatRequestModalitiesItems ModelName: type: string description: Model to use for completion title: ModelName ChatModelNames: type: array items: $ref: '#/components/schemas/ModelName' description: Models to use for completion title: ChatModelNames ContextCompressionEngine: type: string enum: - middle-out description: The compression engine to use. Defaults to "middle-out". title: ContextCompressionEngine PdfParserEngine0: type: string enum: - mistral-ocr - native - cloudflare-ai title: PdfParserEngine0 PdfParserEngine1: type: string enum: - pdf-text title: PdfParserEngine1 PDFParserEngine: oneOf: - $ref: '#/components/schemas/PdfParserEngine0' - $ref: '#/components/schemas/PdfParserEngine1' description: >- The engine to use for parsing PDF files. "pdf-text" is deprecated and automatically redirected to "cloudflare-ai". title: PDFParserEngine PDFParserOptions: type: object properties: engine: $ref: '#/components/schemas/PDFParserEngine' description: Options for PDF parsing. title: PDFParserOptions WebSearchEngine: type: string enum: - native - exa - firecrawl - parallel description: The search engine to use for web search. title: WebSearchEngine WebSearchPluginId: type: string enum: - web title: WebSearchPluginId WebSearchPluginUserLocationType: type: string enum: - approximate title: WebSearchPluginUserLocationType WebSearchPluginUserLocation: type: object properties: city: type: - string - 'null' country: type: - string - 'null' region: type: - string - 'null' timezone: type: - string - 'null' type: $ref: '#/components/schemas/WebSearchPluginUserLocationType' required: - type description: >- Approximate user location for location-biased search results. Passed through to native providers that support it (e.g. Anthropic). title: WebSearchPluginUserLocation WebFetchPluginId: type: string enum: - web-fetch title: WebFetchPluginId ChatRequestPluginsItems: oneOf: - type: object properties: id: type: string enum: - auto-router description: 'Discriminator value: auto-router' allowed_models: type: array items: type: string description: >- List of model patterns to filter which models the auto-router can route between. Supports wildcards (e.g., "anthropic/*" matches all Anthropic models). When not specified, uses the default supported models list. cost_quality_tradeoff: type: integer description: >- Controls cost vs. quality routing tradeoff (0–10). 0 = pure quality (best model regardless of cost), 10 = maximize for cost (cheapest model wins). Intermediate values blend quality and cost signals continuously. Defaults to 7. enabled: type: boolean description: >- Set to false to disable the auto-router plugin for this request. Defaults to true. required: - id description: auto-router variant - type: object properties: id: type: string enum: - context-compression description: 'Discriminator value: context-compression' enabled: type: boolean description: >- Set to false to disable the context-compression plugin for this request. Defaults to true. engine: $ref: '#/components/schemas/ContextCompressionEngine' required: - id description: context-compression variant - type: object properties: id: type: string enum: - file-parser description: 'Discriminator value: file-parser' enabled: type: boolean description: >- Set to false to disable the file-parser plugin for this request. Defaults to true. pdf: $ref: '#/components/schemas/PDFParserOptions' required: - id description: file-parser variant - type: object properties: id: type: string enum: - fusion description: 'Discriminator value: fusion' analysis_models: type: array items: type: string description: >- Slugs of models to run in parallel as the "expert panel" the judge analyzes. Each model receives the same user prompt with web_search + web_fetch enabled. Capped at 8 models to bound cost amplification. When omitted, defaults to the Quality preset from the /labs/fusion UI (~anthropic/claude-opus-latest, ~openai/gpt-latest, ~google/gemini-pro-latest). enabled: type: boolean description: >- Set to false to disable the fusion plugin for this request. Defaults to true. max_tool_calls: type: integer description: >- Maximum number of tool-calling steps each panelist (analysis model) and the judge model may take during their agentic web-research loop. Models with web_search/web_fetch enabled iterate until they produce a text response or hit this ceiling. Defaults to 8. Capped at 16. model: type: string description: >- Slug of the model that performs both the judge step (with web_search + web_fetch) and the final synthesis. When omitted, defaults to the first model in the Quality preset. required: - id description: fusion variant - type: object properties: id: type: string enum: - moderation description: 'Discriminator value: moderation' required: - id description: moderation variant - type: object properties: id: type: string enum: - pareto-router description: 'Discriminator value: pareto-router' enabled: type: boolean description: >- Set to false to disable the pareto-router plugin for this request. Defaults to true. min_coding_score: type: number format: double description: >- Minimum desired coding score between 0 and 1, where 1 is best. Higher values select from stronger coding models (sourced from Artificial Analysis coding percentiles). Maps internally to one of three tiers (low, medium, high). Omit to use the router default tier. required: - id description: pareto-router variant - type: object properties: id: type: string enum: - response-healing description: 'Discriminator value: response-healing' enabled: type: boolean description: >- Set to false to disable the response-healing plugin for this request. Defaults to true. required: - id description: response-healing variant - type: object properties: id: $ref: '#/components/schemas/WebSearchPluginId' enabled: type: boolean description: >- Set to false to disable the web-search plugin for this request. Defaults to true. engine: $ref: '#/components/schemas/WebSearchEngine' exclude_domains: type: array items: type: string description: >- A list of domains to exclude from web search results. Supports wildcards (e.g. "*.substack.com") and path filtering (e.g. "openai.com/blog"). include_domains: type: array items: type: string description: >- A list of domains to restrict web search results to. Supports wildcards (e.g. "*.substack.com") and path filtering (e.g. "openai.com/blog"). max_results: type: integer max_uses: type: integer description: >- Maximum number of times the model can invoke web search in a single turn. Passed through to native providers that support it (e.g. Anthropic). search_prompt: type: string user_location: $ref: '#/components/schemas/WebSearchPluginUserLocation' required: - id description: web variant - type: object properties: id: $ref: '#/components/schemas/WebFetchPluginId' allowed_domains: type: array items: type: string description: Only fetch from these domains. blocked_domains: type: array items: type: string description: Never fetch from these domains. max_content_tokens: type: integer description: >- Maximum content length in approximate tokens. Content exceeding this limit is truncated. max_uses: type: integer description: >- Maximum number of web fetches per request. Once exceeded, the tool returns an error. required: - id description: web-fetch variant discriminator: propertyName: id title: ChatRequestPluginsItems ProviderPreferencesDataCollection: type: string enum: - deny - allow description: >- Data collection setting. If no available model provider meets the requirement, your request will return an error. - allow: (default) allow providers which store user data non-transiently and may train on it - deny: use only providers which do not collect user data. title: ProviderPreferencesDataCollection ProviderName: type: string enum: - AkashML - AI21 - AionLabs - Alibaba - Ambient - Baidu - Amazon Bedrock - Amazon Nova - Anthropic - Arcee AI - AtlasCloud - Avian - Azure - BaseTen - BytePlus - Black Forest Labs - Cerebras - Chutes - Cirrascale - Clarifai - Cloudflare - Cohere - Crucible - Crusoe - Darkbloom - DeepInfra - DeepSeek - DekaLLM - DigitalOcean - Featherless - Fireworks - Friendli - GMICloud - Google - Google AI Studio - Groq - Inception - Inceptron - InferenceNet - Ionstream - Infermatic - Io Net - Inflection - Liquid - Mara - Mancer 2 - Minimax - ModelRun - Mistral - Modular - Moonshot AI - Morph - NCompass - Nebius - Nex AGI - NextBit - Novita - Nvidia - OpenAI - OpenInference - Parasail - Poolside - Perceptron - Perplexity - Phala - Recraft - Reka - Relace - SambaNova - Seed - SiliconFlow - Sourceful - StepFun - Stealth - StreamLake - Switchpoint - Together - Upstage - Venice - WandB - Xiaomi - xAI - Z.AI - FakeProvider title: ProviderName ProviderPreferencesIgnoreItems: oneOf: - $ref: '#/components/schemas/ProviderName' - type: string title: ProviderPreferencesIgnoreItems BigNumberUnion: type: string description: Price per million prompt tokens title: BigNumberUnion ProviderPreferencesMaxPrice: type: object properties: audio: $ref: '#/components/schemas/BigNumberUnion' completion: $ref: '#/components/schemas/BigNumberUnion' image: $ref: '#/components/schemas/BigNumberUnion' prompt: $ref: '#/components/schemas/BigNumberUnion' request: $ref: '#/components/schemas/BigNumberUnion' description: >- The object specifying the maximum price you want to pay for this request. USD price per million tokens, for prompt and completion. title: ProviderPreferencesMaxPrice ProviderPreferencesOnlyItems: oneOf: - $ref: '#/components/schemas/ProviderName' - type: string title: ProviderPreferencesOnlyItems ProviderPreferencesOrderItems: oneOf: - $ref: '#/components/schemas/ProviderName' - type: string title: ProviderPreferencesOrderItems PercentileLatencyCutoffs: type: object properties: p50: type: - number - 'null' format: double description: Maximum p50 latency (seconds) p75: type: - number - 'null' format: double description: Maximum p75 latency (seconds) p90: type: - number - 'null' format: double description: Maximum p90 latency (seconds) p99: type: - number - 'null' format: double description: Maximum p99 latency (seconds) description: >- Percentile-based latency cutoffs. All specified cutoffs must be met for an endpoint to be preferred. title: PercentileLatencyCutoffs PreferredMaxLatency: oneOf: - type: number format: double - $ref: '#/components/schemas/PercentileLatencyCutoffs' - description: Any type description: >- Preferred maximum latency (in seconds). Can be a number (applies to p50) or an object with percentile-specific cutoffs. Endpoints above the threshold(s) may still be used, but are deprioritized in routing. When using fallback models, this may cause a fallback model to be used instead of the primary model if it meets the threshold. title: PreferredMaxLatency PercentileThroughputCutoffs: type: object properties: p50: type: - number - 'null' format: double description: Minimum p50 throughput (tokens/sec) p75: type: - number - 'null' format: double description: Minimum p75 throughput (tokens/sec) p90: type: - number - 'null' format: double description: Minimum p90 throughput (tokens/sec) p99: type: - number - 'null' format: double description: Minimum p99 throughput (tokens/sec) description: >- Percentile-based throughput cutoffs. All specified cutoffs must be met for an endpoint to be preferred. title: PercentileThroughputCutoffs PreferredMinThroughput: oneOf: - type: number format: double - $ref: '#/components/schemas/PercentileThroughputCutoffs' - description: Any type description: >- Preferred minimum throughput (in tokens per second). Can be a number (applies to p50) or an object with percentile-specific cutoffs. Endpoints below the threshold(s) may still be used, but are deprioritized in routing. When using fallback models, this may cause a fallback model to be used instead of the primary model if it meets the threshold. title: PreferredMinThroughput Quantization: type: string enum: - int4 - int8 - fp4 - fp6 - fp8 - fp16 - bf16 - fp32 - unknown title: Quantization ProviderSort: type: string enum: - price - throughput - latency - exacto description: The provider sorting strategy (price, throughput, latency) title: ProviderSort ProviderSortConfigBy: type: string enum: - price - throughput - latency - exacto description: The provider sorting strategy (price, throughput, latency) title: ProviderSortConfigBy ProviderSortConfigPartition: type: string enum: - model - none description: >- Partitioning strategy for sorting: "model" (default) groups endpoints by model before sorting (fallback models remain fallbacks), "none" sorts all endpoints together regardless of model. title: ProviderSortConfigPartition ProviderSortConfig: type: object properties: by: oneOf: - $ref: '#/components/schemas/ProviderSortConfigBy' - type: 'null' description: The provider sorting strategy (price, throughput, latency) partition: oneOf: - $ref: '#/components/schemas/ProviderSortConfigPartition' - type: 'null' description: >- Partitioning strategy for sorting: "model" (default) groups endpoints by model before sorting (fallback models remain fallbacks), "none" sorts all endpoints together regardless of model. description: The provider sorting strategy (price, throughput, latency) title: ProviderSortConfig ProviderPreferencesSort: oneOf: - $ref: '#/components/schemas/ProviderSort' - $ref: '#/components/schemas/ProviderSortConfig' - description: Any type description: >- The sorting strategy to use for this request, if "order" is not specified. When set, no load balancing is performed. title: ProviderPreferencesSort ProviderPreferences: type: object properties: allow_fallbacks: type: - boolean - 'null' description: > Whether to allow backup providers to serve requests - true: (default) when the primary provider (or your custom providers in "order") is unavailable, use the next best provider. - false: use only the primary/custom provider, and return the upstream error if it's unavailable. data_collection: oneOf: - $ref: '#/components/schemas/ProviderPreferencesDataCollection' - type: 'null' description: >- Data collection setting. If no available model provider meets the requirement, your request will return an error. - allow: (default) allow providers which store user data non-transiently and may train on it - deny: use only providers which do not collect user data. enforce_distillable_text: type: - boolean - 'null' description: >- Whether to restrict routing to only models that allow text distillation. When true, only models where the author has allowed distillation will be used. ignore: type: - array - 'null' items: $ref: '#/components/schemas/ProviderPreferencesIgnoreItems' description: >- List of provider slugs to ignore. If provided, this list is merged with your account-wide ignored provider settings for this request. max_price: $ref: '#/components/schemas/ProviderPreferencesMaxPrice' description: >- The object specifying the maximum price you want to pay for this request. USD price per million tokens, for prompt and completion. only: type: - array - 'null' items: $ref: '#/components/schemas/ProviderPreferencesOnlyItems' description: >- List of provider slugs to allow. If provided, this list is merged with your account-wide allowed provider settings for this request. order: type: - array - 'null' items: $ref: '#/components/schemas/ProviderPreferencesOrderItems' description: >- An ordered list of provider slugs. The router will attempt to use the first provider in the subset of this list that supports your requested model, and fall back to the next if it is unavailable. If no providers are available, the request will fail with an error message. preferred_max_latency: $ref: '#/components/schemas/PreferredMaxLatency' preferred_min_throughput: $ref: '#/components/schemas/PreferredMinThroughput' quantizations: type: - array - 'null' items: $ref: '#/components/schemas/Quantization' description: A list of quantization levels to filter the provider by. require_parameters: type: - boolean - 'null' description: >- Whether to filter providers to only those that support the parameters you've provided. If this setting is omitted or set to false, then providers will receive only the parameters they support, and ignore the rest. sort: $ref: '#/components/schemas/ProviderPreferencesSort' description: >- The sorting strategy to use for this request, if "order" is not specified. When set, no load balancing is performed. zdr: type: - boolean - 'null' description: >- Whether to restrict routing to only ZDR (Zero Data Retention) endpoints. When true, only endpoints that do not retain prompts will be used. description: >- When multiple model providers are available, optionally indicate your routing preference. title: ProviderPreferences ChatRequestReasoningEffort: type: string enum: - xhigh - high - medium - low - minimal - none description: Constrains effort on reasoning for reasoning models title: ChatRequestReasoningEffort ChatReasoningSummaryVerbosityEnum: type: string enum: - auto - concise - detailed title: ChatReasoningSummaryVerbosityEnum ChatRequestReasoning: type: object properties: effort: oneOf: - $ref: '#/components/schemas/ChatRequestReasoningEffort' - type: 'null' description: Constrains effort on reasoning for reasoning models summary: $ref: '#/components/schemas/ChatReasoningSummaryVerbosityEnum' description: Configuration options for reasoning models title: ChatRequestReasoning FormatJsonObjectConfigType: type: string enum: - json_object title: FormatJsonObjectConfigType ChatJsonSchemaConfig: type: object properties: description: type: string description: Schema description for the model name: type: string description: Schema name (a-z, A-Z, 0-9, underscores, dashes, max 64 chars) schema: type: object additionalProperties: description: Any type description: JSON Schema object strict: type: - boolean - 'null' description: Enable strict schema adherence required: - name description: JSON Schema configuration object title: ChatJsonSchemaConfig ChatRequestResponseFormat: oneOf: - type: object properties: type: type: string enum: - grammar description: 'Discriminator value: grammar' grammar: type: string description: Custom grammar for text generation required: - type - grammar description: Custom grammar response format - type: object properties: type: $ref: '#/components/schemas/FormatJsonObjectConfigType' required: - type description: JSON object response format - type: object properties: type: type: string enum: - json_schema description: 'Discriminator value: json_schema' json_schema: $ref: '#/components/schemas/ChatJsonSchemaConfig' required: - type - json_schema description: JSON Schema response format for structured outputs - type: object properties: type: type: string enum: - python description: 'Discriminator value: python' required: - type description: Python code response format - type: object properties: type: type: string enum: - text description: 'Discriminator value: text' required: - type description: Default text response format discriminator: propertyName: type description: Response format configuration title: ChatRequestResponseFormat ChatRequestServiceTier: type: string enum: - auto - default - flex - priority - scale description: The service tier to use for processing this request. title: ChatRequestServiceTier ChatRequestStop: oneOf: - type: string - type: array items: type: string - description: Any type description: Stop sequences (up to 4) title: ChatRequestStop StopServerToolsWhenFinishReasonIsType: type: string enum: - finish_reason_is title: StopServerToolsWhenFinishReasonIsType StopServerToolsWhenHasToolCallType: type: string enum: - has_tool_call title: StopServerToolsWhenHasToolCallType StopServerToolsWhenMaxCostType: type: string enum: - max_cost title: StopServerToolsWhenMaxCostType StopServerToolsWhenMaxTokensUsedType: type: string enum: - max_tokens_used title: StopServerToolsWhenMaxTokensUsedType StopServerToolsWhenStepCountIsType: type: string enum: - step_count_is title: StopServerToolsWhenStepCountIsType StopServerToolsWhenCondition: oneOf: - type: object properties: type: $ref: '#/components/schemas/StopServerToolsWhenFinishReasonIsType' reason: type: string required: - type - reason description: >- Stop when the upstream model emits this finish reason (e.g. `length`). - type: object properties: type: $ref: '#/components/schemas/StopServerToolsWhenHasToolCallType' tool_name: type: string required: - type - tool_name description: Stop after a tool with this name has been called. - type: object properties: type: $ref: '#/components/schemas/StopServerToolsWhenMaxCostType' max_cost_in_dollars: type: number format: double required: - type - max_cost_in_dollars description: >- Stop once cumulative cost across the loop exceeds this dollar threshold. - type: object properties: type: $ref: '#/components/schemas/StopServerToolsWhenMaxTokensUsedType' max_tokens: type: integer required: - type - max_tokens description: >- Stop once cumulative token usage across the loop exceeds this threshold. - type: object properties: type: $ref: '#/components/schemas/StopServerToolsWhenStepCountIsType' step_count: type: integer required: - type - step_count description: Stop after the agent loop has executed this many steps. discriminator: propertyName: type description: A single condition that, when met, halts the server-tool agent loop. title: StopServerToolsWhenCondition StopServerToolsWhen: type: array items: $ref: '#/components/schemas/StopServerToolsWhenCondition' description: >- Stop conditions for the server-tool agent loop. Any condition firing halts the loop (OR logic). When set, this overrides `max_tool_calls`. title: StopServerToolsWhen ChatStreamOptions: type: object properties: include_usage: type: boolean description: >- Deprecated: This field has no effect. Full usage details are always included. description: Streaming configuration options title: ChatStreamOptions ChatToolChoice0: type: string enum: - none title: ChatToolChoice0 ChatToolChoice1: type: string enum: - auto title: ChatToolChoice1 ChatToolChoice2: type: string enum: - required title: ChatToolChoice2 ChatNamedToolChoiceFunction: type: object properties: name: type: string description: Function name to call required: - name title: ChatNamedToolChoiceFunction ChatNamedToolChoiceType: type: string enum: - function title: ChatNamedToolChoiceType ChatNamedToolChoice: type: object properties: function: $ref: '#/components/schemas/ChatNamedToolChoiceFunction' type: $ref: '#/components/schemas/ChatNamedToolChoiceType' required: - function - type description: Named tool choice for specific function title: ChatNamedToolChoice ChatServerToolChoice: type: object properties: type: type: string description: >- OpenRouter server-tool type to force (e.g. `openrouter:web_search`, `web_search`, `web_search_preview`). required: - type description: >- OpenRouter extension: force a specific server tool by naming it directly in `tool_choice.type` instead of wrapping it in `{ type: "function", function: { name } }`. title: ChatServerToolChoice ChatToolChoice: oneOf: - $ref: '#/components/schemas/ChatToolChoice0' - $ref: '#/components/schemas/ChatToolChoice1' - $ref: '#/components/schemas/ChatToolChoice2' - $ref: '#/components/schemas/ChatNamedToolChoice' - $ref: '#/components/schemas/ChatServerToolChoice' description: Tool choice configuration title: ChatToolChoice ChatFunctionToolOneOf0Function: type: object properties: description: type: string description: Function description for the model name: type: string description: Function name (a-z, A-Z, 0-9, underscores, dashes, max 64 chars) parameters: type: object additionalProperties: description: Any type description: Function parameters as JSON Schema object strict: type: - boolean - 'null' description: Enable strict schema adherence required: - name description: Function definition for tool calling title: ChatFunctionToolOneOf0Function ChatFunctionToolOneOf0Type: type: string enum: - function title: ChatFunctionToolOneOf0Type ChatFunctionTool0: type: object properties: cache_control: $ref: '#/components/schemas/ChatContentCacheControl' function: $ref: '#/components/schemas/ChatFunctionToolOneOf0Function' description: Function definition for tool calling type: $ref: '#/components/schemas/ChatFunctionToolOneOf0Type' required: - function - type title: ChatFunctionTool0 AdvisorReasoningEffort: type: string enum: - xhigh - high - medium - low - minimal - none description: Reasoning effort level for the advisor call. title: AdvisorReasoningEffort AdvisorReasoning: type: object properties: effort: $ref: '#/components/schemas/AdvisorReasoningEffort' description: Reasoning effort level for the advisor call. max_tokens: type: integer description: Maximum number of reasoning tokens the advisor may use. description: >- Reasoning configuration forwarded to the advisor call. Use this to control reasoning effort and token budget for models that support extended thinking. title: AdvisorReasoning AdvisorNestedTool: type: object properties: function: type: object additionalProperties: description: Any type parameters: type: object additionalProperties: description: Any type type: type: string required: - type description: >- A tool made available to the advisor sub-agent. Accepts function tools and OpenRouter server tools (e.g. openrouter:web_search). The advisor tool may not list itself. title: AdvisorNestedTool AdvisorProfile: type: object properties: forward_transcript: type: boolean description: >- When true, the full parent conversation is forwarded to the advisor so it sees the same context the executor does (and the tool-call `prompt`, if given, is appended as a final user turn). When false or omitted, the advisor receives only the `prompt` the executor passes in the tool call. instructions: type: string description: >- System instructions for the advisor sub-agent. When omitted, the advisor responds with no system prompt of its own. max_completion_tokens: type: integer description: >- Maximum number of output tokens (including reasoning) the advisor may produce. When omitted, the provider's default applies. max_tool_calls: type: integer description: >- Maximum number of tool-calling steps the advisor sub-agent may take during its agentic loop. Capped at 25. Only relevant when the advisor is given tools. model: type: string description: >- Slug of the advisor model to consult (any OpenRouter model). When omitted, the executor can choose it via the tool call's `model` argument; if neither is set, the model from the outer API request is used. The advisor tool itself cannot be the advisor model. name: type: string description: >- Name of this advisor profile. The executor model passes this `name` to the advisor tool to select the profile. Must be unique within the `advisors` roster. Letters, digits, underscores, and dashes; 1–64 chars. reasoning: $ref: '#/components/schemas/AdvisorReasoning' temperature: type: number format: double description: >- Sampling temperature forwarded to the advisor call. When omitted, the provider's default applies. tools: type: array items: $ref: '#/components/schemas/AdvisorNestedTool' description: >- Tools the advisor sub-agent may use while forming its advice. The advisor runs as an agentic sub-agent over these tools, then returns its text. Must not include the advisor tool itself. required: - name description: >- A named advisor profile. The executor model selects it by `name` and the profile's config (model, instructions, etc.) takes precedence over the request-wide advisor parameters for that call. title: AdvisorProfile AdvisorServerToolConfig: type: object properties: advisors: type: array items: $ref: '#/components/schemas/AdvisorProfile' description: >- Roster of named advisor profiles. When set, the executor model selects one by passing its `name` to the advisor tool; the chosen profile's config overrides the request-wide advisor parameters. Profile names must be unique. forward_transcript: type: boolean description: >- When true, the full parent conversation is forwarded to the advisor so it sees the same context the executor does (and the tool-call `prompt`, if given, is appended as a final user turn). When false or omitted, the advisor receives only the `prompt` the executor passes in the tool call. instructions: type: string description: >- System instructions for the advisor sub-agent. When omitted, the advisor responds with no system prompt of its own. max_completion_tokens: type: integer description: >- Maximum number of output tokens (including reasoning) the advisor may produce. When omitted, the provider's default applies. max_tool_calls: type: integer description: >- Maximum number of tool-calling steps the advisor sub-agent may take during its agentic loop. Capped at 25. Only relevant when the advisor is given tools. model: type: string description: >- Slug of the advisor model to consult (any OpenRouter model). When omitted, the executor can choose it via the tool call's `model` argument; if neither is set, the model from the outer API request is used. The advisor tool itself cannot be the advisor model. reasoning: $ref: '#/components/schemas/AdvisorReasoning' temperature: type: number format: double description: >- Sampling temperature forwarded to the advisor call. When omitted, the provider's default applies. tools: type: array items: $ref: '#/components/schemas/AdvisorNestedTool' description: >- Tools the advisor sub-agent may use while forming its advice. The advisor runs as an agentic sub-agent over these tools, then returns its text. Must not include the advisor tool itself. description: Configuration for the openrouter:advisor server tool. title: AdvisorServerToolConfig AdvisorServerToolOpenRouterType: type: string enum: - openrouter:advisor title: AdvisorServerToolOpenRouterType AdvisorServerTool_OpenRouter: type: object properties: parameters: $ref: '#/components/schemas/AdvisorServerToolConfig' type: $ref: '#/components/schemas/AdvisorServerToolOpenRouterType' required: - type description: >- OpenRouter built-in server tool: consults a higher-intelligence advisor model (any OpenRouter model) for guidance mid-generation and returns its response. The advisor may run as a sub-agent with its own tools. title: AdvisorServerTool_OpenRouter DatetimeServerToolConfig: type: object properties: timezone: type: string description: IANA timezone name (e.g. "America/New_York"). Defaults to UTC. description: Configuration for the openrouter:datetime server tool title: DatetimeServerToolConfig DatetimeServerToolType: type: string enum: - openrouter:datetime title: DatetimeServerToolType DatetimeServerTool: type: object properties: parameters: $ref: '#/components/schemas/DatetimeServerToolConfig' type: $ref: '#/components/schemas/DatetimeServerToolType' required: - type description: 'OpenRouter built-in server tool: returns the current date and time' title: DatetimeServerTool ImageGenerationServerToolConfig: type: object properties: model: type: string description: >- Which image generation model to use (e.g. "openai/gpt-5-image"). Defaults to "openai/gpt-5-image". description: >- Configuration for the openrouter:image_generation server tool. Accepts all image_config params (aspect_ratio, quality, size, background, output_format, output_compression, moderation, etc.) plus a model field. title: ImageGenerationServerToolConfig ImageGenerationServerToolOpenRouterType: type: string enum: - openrouter:image_generation title: ImageGenerationServerToolOpenRouterType ImageGenerationServerTool_OpenRouter: type: object properties: parameters: $ref: '#/components/schemas/ImageGenerationServerToolConfig' type: $ref: '#/components/schemas/ImageGenerationServerToolOpenRouterType' required: - type description: >- OpenRouter built-in server tool: generates images from text prompts using an image generation model title: ImageGenerationServerTool_OpenRouter SearchModelsServerToolConfig: type: object properties: max_results: type: integer description: Maximum number of models to return. Defaults to 5, max 20. description: Configuration for the openrouter:experimental__search_models server tool title: SearchModelsServerToolConfig ChatSearchModelsServerToolType: type: string enum: - openrouter:experimental__search_models title: ChatSearchModelsServerToolType ChatSearchModelsServerTool: type: object properties: parameters: $ref: '#/components/schemas/SearchModelsServerToolConfig' type: $ref: '#/components/schemas/ChatSearchModelsServerToolType' required: - type description: >- OpenRouter built-in server tool: searches and filters AI models available on OpenRouter title: ChatSearchModelsServerTool WebFetchEngineEnum: type: string enum: - auto - native - openrouter - exa - parallel - firecrawl description: >- Which fetch engine to use. "auto" (default) uses native if the provider supports it, otherwise Exa. "native" forces the provider's built-in fetch. "exa" uses Exa Contents API. "openrouter" uses direct HTTP fetch. "firecrawl" uses Firecrawl scrape (requires BYOK). "parallel" uses the Parallel extract API. title: WebFetchEngineEnum WebFetchServerToolConfig: type: object properties: allowed_domains: type: array items: type: string description: Only fetch from these domains. blocked_domains: type: array items: type: string description: Never fetch from these domains. engine: $ref: '#/components/schemas/WebFetchEngineEnum' max_content_tokens: type: integer description: >- Maximum content length in approximate tokens. Content exceeding this limit is truncated. max_uses: type: integer description: >- Maximum number of web fetches per request. Once exceeded, the tool returns an error. description: Configuration for the openrouter:web_fetch server tool title: WebFetchServerToolConfig WebFetchServerToolType: type: string enum: - openrouter:web_fetch title: WebFetchServerToolType WebFetchServerTool: type: object properties: parameters: $ref: '#/components/schemas/WebFetchServerToolConfig' type: $ref: '#/components/schemas/WebFetchServerToolType' required: - type description: >- OpenRouter built-in server tool: fetches full content from a URL (web page or PDF) title: WebFetchServerTool WebSearchEngineEnum: type: string enum: - auto - native - exa - parallel - firecrawl description: >- Which search engine to use. "auto" (default) uses native if the provider supports it, otherwise Exa. "native" forces the provider's built-in search. "exa" forces the Exa search API. "firecrawl" uses Firecrawl (requires BYOK). "parallel" uses the Parallel search API. title: WebSearchEngineEnum SearchQualityLevel: type: string enum: - low - medium - high description: >- How much context to retrieve per result. Applies to Exa and Parallel engines; ignored with native provider search and Firecrawl. For Exa, pins a fixed per-result character cap (low=5,000, medium=15,000, high=30,000); when omitted, Exa picks an adaptive size per query and document (typically ~2,000–4,000 characters per result). For Parallel, controls the total characters across all results; when omitted, Parallel uses its own default size. title: SearchQualityLevel WebSearchUserLocationServerToolType: type: string enum: - approximate title: WebSearchUserLocationServerToolType WebSearchUserLocationServerTool: type: object properties: city: type: - string - 'null' country: type: - string - 'null' region: type: - string - 'null' timezone: type: - string - 'null' type: $ref: '#/components/schemas/WebSearchUserLocationServerToolType' description: Approximate user location for location-biased results. title: WebSearchUserLocationServerTool WebSearchConfig: type: object properties: allowed_domains: type: array items: type: string description: >- Limit search results to these domains. Supported by Exa, Firecrawl, Parallel, and most native providers (Anthropic, OpenAI, xAI). Not supported with Perplexity. Cannot be used with excluded_domains. engine: $ref: '#/components/schemas/WebSearchEngineEnum' excluded_domains: type: array items: type: string description: >- Exclude search results from these domains. Supported by Exa, Firecrawl, Parallel, Anthropic, and xAI. Not supported with OpenAI (silently ignored) or Perplexity. Cannot be used with allowed_domains. max_results: type: integer description: >- Maximum number of search results to return per search call. Defaults to 5. Applies to Exa, Firecrawl, and Parallel engines; ignored with native provider search. max_total_results: type: integer description: >- Maximum total number of search results across all search calls in a single request. Once this limit is reached, the tool will stop returning new results. Useful for controlling cost and context size in agentic loops. Defaults to 50 when not specified. search_context_size: $ref: '#/components/schemas/SearchQualityLevel' user_location: $ref: '#/components/schemas/WebSearchUserLocationServerTool' title: WebSearchConfig OpenRouterWebSearchServerToolType: type: string enum: - openrouter:web_search title: OpenRouterWebSearchServerToolType OpenRouterWebSearchServerTool: type: object properties: parameters: $ref: '#/components/schemas/WebSearchConfig' type: $ref: '#/components/schemas/OpenRouterWebSearchServerToolType' required: - type description: >- OpenRouter built-in server tool: searches the web for current information title: OpenRouterWebSearchServerTool ChatWebSearchShorthandType: type: string enum: - web_search - web_search_preview - web_search_preview_2025_03_11 - web_search_2025_08_26 title: ChatWebSearchShorthandType ChatWebSearchShorthand: type: object properties: allowed_domains: type: array items: type: string description: >- Limit search results to these domains. Supported by Exa, Firecrawl, Parallel, and most native providers (Anthropic, OpenAI, xAI). Not supported with Perplexity. Cannot be used with excluded_domains. engine: $ref: '#/components/schemas/WebSearchEngineEnum' excluded_domains: type: array items: type: string description: >- Exclude search results from these domains. Supported by Exa, Firecrawl, Parallel, Anthropic, and xAI. Not supported with OpenAI (silently ignored) or Perplexity. Cannot be used with allowed_domains. max_results: type: integer description: >- Maximum number of search results to return per search call. Defaults to 5. Applies to Exa, Firecrawl, and Parallel engines; ignored with native provider search. max_total_results: type: integer description: >- Maximum total number of search results across all search calls in a single request. Once this limit is reached, the tool will stop returning new results. Useful for controlling cost and context size in agentic loops. Defaults to 50 when not specified. parameters: $ref: '#/components/schemas/WebSearchConfig' search_context_size: $ref: '#/components/schemas/SearchQualityLevel' type: $ref: '#/components/schemas/ChatWebSearchShorthandType' user_location: $ref: '#/components/schemas/WebSearchUserLocationServerTool' required: - type description: >- Web search tool using OpenAI Responses API syntax. Automatically converted to openrouter:web_search. title: ChatWebSearchShorthand ChatFunctionTool: oneOf: - $ref: '#/components/schemas/ChatFunctionTool0' - $ref: '#/components/schemas/AdvisorServerTool_OpenRouter' - $ref: '#/components/schemas/DatetimeServerTool' - $ref: '#/components/schemas/ImageGenerationServerTool_OpenRouter' - $ref: '#/components/schemas/ChatSearchModelsServerTool' - $ref: '#/components/schemas/WebFetchServerTool' - $ref: '#/components/schemas/OpenRouterWebSearchServerTool' - $ref: '#/components/schemas/ChatWebSearchShorthand' description: >- Tool definition for function calling (regular function or OpenRouter built-in server tool) title: ChatFunctionTool TraceConfig: type: object properties: generation_name: type: string parent_span_id: type: string span_name: type: string trace_id: type: string trace_name: type: string description: >- Metadata for observability and tracing. Known keys (trace_id, trace_name, span_name, generation_name, parent_span_id) have special handling. Additional keys are passed through as custom metadata to configured broadcast destinations. title: TraceConfig ChatRequest: type: object properties: cache_control: $ref: '#/components/schemas/AnthropicCacheControlDirective' debug: $ref: '#/components/schemas/ChatDebugOptions' frequency_penalty: type: - number - 'null' format: double description: Frequency penalty (-2.0 to 2.0) image_config: $ref: '#/components/schemas/ImageConfig' logit_bias: type: - object - 'null' additionalProperties: type: number format: double description: Token logit bias adjustments logprobs: type: - boolean - 'null' description: Return log probabilities max_completion_tokens: type: - integer - 'null' description: Maximum tokens in completion max_tokens: type: - integer - 'null' description: >- Maximum tokens (deprecated, use max_completion_tokens). Note: some providers enforce a minimum of 16. messages: type: array items: $ref: '#/components/schemas/ChatMessages' description: List of messages for the conversation metadata: type: object additionalProperties: type: string description: >- Key-value pairs for additional object information (max 16 pairs, 64 char keys, 512 char values) modalities: type: array items: $ref: '#/components/schemas/ChatRequestModalitiesItems' description: >- Output modalities for the response. Supported values are "text", "image", and "audio". model: $ref: '#/components/schemas/ModelName' models: $ref: '#/components/schemas/ChatModelNames' parallel_tool_calls: type: - boolean - 'null' description: >- Whether to enable parallel function calling during tool use. When true, the model may generate multiple tool calls in a single response. plugins: type: array items: $ref: '#/components/schemas/ChatRequestPluginsItems' description: >- Plugins you want to enable for this request, including their settings. presence_penalty: type: - number - 'null' format: double description: Presence penalty (-2.0 to 2.0) provider: $ref: '#/components/schemas/ProviderPreferences' reasoning: $ref: '#/components/schemas/ChatRequestReasoning' description: Configuration options for reasoning models response_format: $ref: '#/components/schemas/ChatRequestResponseFormat' description: Response format configuration route: description: Any type seed: type: - integer - 'null' description: Random seed for deterministic outputs service_tier: oneOf: - $ref: '#/components/schemas/ChatRequestServiceTier' - type: 'null' description: The service tier to use for processing this request. session_id: type: string description: >- A unique identifier for grouping related requests (e.g., a conversation or agent workflow). When provided, OpenRouter uses it as the sticky routing key, routing all requests in the session to the same provider to maximize prompt cache hits. Also used for observability grouping. If provided in both the request body and the x-session-id header, the body value takes precedence. Maximum of 256 characters. stop: $ref: '#/components/schemas/ChatRequestStop' description: Stop sequences (up to 4) stop_server_tools_when: $ref: '#/components/schemas/StopServerToolsWhen' stream: type: boolean default: false description: Enable streaming response stream_options: $ref: '#/components/schemas/ChatStreamOptions' temperature: type: - number - 'null' format: double description: Sampling temperature (0-2) tool_choice: $ref: '#/components/schemas/ChatToolChoice' tools: type: array items: $ref: '#/components/schemas/ChatFunctionTool' description: Available tools for function calling top_logprobs: type: - integer - 'null' description: Number of top log probabilities to return (0-20) top_p: type: - number - 'null' format: double description: Nucleus sampling parameter (0-1) trace: $ref: '#/components/schemas/TraceConfig' user: type: string description: Unique user identifier required: - messages description: Chat completion request parameters title: ChatRequest PresetDesignatedVersion: type: object properties: config: type: object additionalProperties: description: Any type created_at: type: string creator_id: type: string id: type: string preset_id: type: string system_prompt: type: - string - 'null' updated_at: type: string version: type: integer required: - config - created_at - creator_id - id - preset_id - system_prompt - updated_at - version description: >- A specific version of a preset, containing config and optional system prompt. title: PresetDesignatedVersion PresetWithDesignatedVersionStatus: type: string enum: - active - disabled - archived title: PresetWithDesignatedVersionStatus PresetWithDesignatedVersion: type: object properties: created_at: type: string creator_user_id: type: - string - 'null' description: type: - string - 'null' designated_version: $ref: '#/components/schemas/PresetDesignatedVersion' designated_version_id: type: - string - 'null' id: type: string name: type: string slug: type: string status: $ref: '#/components/schemas/PresetWithDesignatedVersionStatus' status_updated_at: type: - string - 'null' updated_at: type: string workspace_id: type: - string - 'null' required: - created_at - creator_user_id - description - designated_version - designated_version_id - id - name - slug - status - status_updated_at - updated_at - workspace_id description: A preset with its currently designated version. title: PresetWithDesignatedVersion CreatePresetFromInferenceResponse: type: object properties: data: $ref: '#/components/schemas/PresetWithDesignatedVersion' required: - data description: Response containing the created preset with its designated version. title: CreatePresetFromInferenceResponse BadRequestResponseErrorData: type: object properties: code: type: integer message: type: string metadata: type: - object - 'null' additionalProperties: description: Any type required: - code - message description: Error data for BadRequestResponse title: BadRequestResponseErrorData BadRequestResponse: type: object properties: error: $ref: '#/components/schemas/BadRequestResponseErrorData' openrouter_metadata: type: - object - 'null' additionalProperties: description: Any type user_id: type: - string - 'null' required: - error description: Bad Request - Invalid request parameters or malformed input title: BadRequestResponse UnauthorizedResponseErrorData: type: object properties: code: type: integer message: type: string metadata: type: - object - 'null' additionalProperties: description: Any type required: - code - message description: Error data for UnauthorizedResponse title: UnauthorizedResponseErrorData UnauthorizedResponse: type: object properties: error: $ref: '#/components/schemas/UnauthorizedResponseErrorData' openrouter_metadata: type: - object - 'null' additionalProperties: description: Any type user_id: type: - string - 'null' required: - error description: Unauthorized - Authentication required or invalid credentials title: UnauthorizedResponse ForbiddenResponseErrorData: type: object properties: code: type: integer message: type: string metadata: type: - object - 'null' additionalProperties: description: Any type required: - code - message description: Error data for ForbiddenResponse title: ForbiddenResponseErrorData ForbiddenResponse: type: object properties: error: $ref: '#/components/schemas/ForbiddenResponseErrorData' openrouter_metadata: type: - object - 'null' additionalProperties: description: Any type user_id: type: - string - 'null' required: - error description: Forbidden - Authentication successful but insufficient permissions title: ForbiddenResponse NotFoundResponseErrorData: type: object properties: code: type: integer message: type: string metadata: type: - object - 'null' additionalProperties: description: Any type required: - code - message description: Error data for NotFoundResponse title: NotFoundResponseErrorData NotFoundResponse: type: object properties: error: $ref: '#/components/schemas/NotFoundResponseErrorData' openrouter_metadata: type: - object - 'null' additionalProperties: description: Any type user_id: type: - string - 'null' required: - error description: Not Found - Resource does not exist title: NotFoundResponse ConflictResponseErrorData: type: object properties: code: type: integer message: type: string metadata: type: - object - 'null' additionalProperties: description: Any type required: - code - message description: Error data for ConflictResponse title: ConflictResponseErrorData ConflictResponse: type: object properties: error: $ref: '#/components/schemas/ConflictResponseErrorData' openrouter_metadata: type: - object - 'null' additionalProperties: description: Any type user_id: type: - string - 'null' required: - error description: Conflict - Resource conflict or concurrent modification title: ConflictResponse InternalServerResponseErrorData: type: object properties: code: type: integer message: type: string metadata: type: - object - 'null' additionalProperties: description: Any type required: - code - message description: Error data for InternalServerResponse title: InternalServerResponseErrorData InternalServerResponse: type: object properties: error: $ref: '#/components/schemas/InternalServerResponseErrorData' openrouter_metadata: type: - object - 'null' additionalProperties: description: Any type user_id: type: - string - 'null' required: - error description: Internal Server Error - Unexpected server error title: InternalServerResponse securitySchemes: apiKey: type: http scheme: bearer description: API key as bearer token in Authorization header ``` ## SDK Code Examples ```python Presets_createPresetsChatCompletions_example import requests url = "https://openrouter.ai/api/v1/presets/my-preset/chat/completions" payload = { "messages": [ { "role": "system", "content": "You are a helpful assistant." }, { "role": "user", "content": "Hello!" } ], "model": "openai/gpt-5.4", "temperature": 0.7 } headers = { "Authorization": "Bearer ", "Content-Type": "application/json" } response = requests.post(url, json=payload, headers=headers) print(response.json()) ``` ```javascript Presets_createPresetsChatCompletions_example const url = 'https://openrouter.ai/api/v1/presets/my-preset/chat/completions'; const options = { method: 'POST', headers: {Authorization: 'Bearer ', 'Content-Type': 'application/json'}, body: '{"messages":[{"role":"system","content":"You are a helpful assistant."},{"role":"user","content":"Hello!"}],"model":"openai/gpt-5.4","temperature":0.7}' }; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); } ``` ```go Presets_createPresetsChatCompletions_example package main import ( "fmt" "strings" "net/http" "io" ) func main() { url := "https://openrouter.ai/api/v1/presets/my-preset/chat/completions" payload := strings.NewReader("{\n \"messages\": [\n {\n \"role\": \"system\",\n \"content\": \"You are a helpful assistant.\"\n },\n {\n \"role\": \"user\",\n \"content\": \"Hello!\"\n }\n ],\n \"model\": \"openai/gpt-5.4\",\n \"temperature\": 0.7\n}") req, _ := http.NewRequest("POST", url, payload) req.Header.Add("Authorization", "Bearer ") req.Header.Add("Content-Type", "application/json") res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := io.ReadAll(res.Body) fmt.Println(res) fmt.Println(string(body)) } ``` ```ruby Presets_createPresetsChatCompletions_example require 'uri' require 'net/http' url = URI("https://openrouter.ai/api/v1/presets/my-preset/chat/completions") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true request = Net::HTTP::Post.new(url) request["Authorization"] = 'Bearer ' request["Content-Type"] = 'application/json' request.body = "{\n \"messages\": [\n {\n \"role\": \"system\",\n \"content\": \"You are a helpful assistant.\"\n },\n {\n \"role\": \"user\",\n \"content\": \"Hello!\"\n }\n ],\n \"model\": \"openai/gpt-5.4\",\n \"temperature\": 0.7\n}" response = http.request(request) puts response.read_body ``` ```java Presets_createPresetsChatCompletions_example import com.mashape.unirest.http.HttpResponse; import com.mashape.unirest.http.Unirest; HttpResponse response = Unirest.post("https://openrouter.ai/api/v1/presets/my-preset/chat/completions") .header("Authorization", "Bearer ") .header("Content-Type", "application/json") .body("{\n \"messages\": [\n {\n \"role\": \"system\",\n \"content\": \"You are a helpful assistant.\"\n },\n {\n \"role\": \"user\",\n \"content\": \"Hello!\"\n }\n ],\n \"model\": \"openai/gpt-5.4\",\n \"temperature\": 0.7\n}") .asString(); ``` ```php Presets_createPresetsChatCompletions_example request('POST', 'https://openrouter.ai/api/v1/presets/my-preset/chat/completions', [ 'body' => '{ "messages": [ { "role": "system", "content": "You are a helpful assistant." }, { "role": "user", "content": "Hello!" } ], "model": "openai/gpt-5.4", "temperature": 0.7 }', 'headers' => [ 'Authorization' => 'Bearer ', 'Content-Type' => 'application/json', ], ]); echo $response->getBody(); ``` ```csharp Presets_createPresetsChatCompletions_example using RestSharp; var client = new RestClient("https://openrouter.ai/api/v1/presets/my-preset/chat/completions"); var request = new RestRequest(Method.POST); request.AddHeader("Authorization", "Bearer "); request.AddHeader("Content-Type", "application/json"); request.AddParameter("application/json", "{\n \"messages\": [\n {\n \"role\": \"system\",\n \"content\": \"You are a helpful assistant.\"\n },\n {\n \"role\": \"user\",\n \"content\": \"Hello!\"\n }\n ],\n \"model\": \"openai/gpt-5.4\",\n \"temperature\": 0.7\n}", ParameterType.RequestBody); IRestResponse response = client.Execute(request); ``` ```swift Presets_createPresetsChatCompletions_example import Foundation let headers = [ "Authorization": "Bearer ", "Content-Type": "application/json" ] let parameters = [ "messages": [ [ "role": "system", "content": "You are a helpful assistant." ], [ "role": "user", "content": "Hello!" ] ], "model": "openai/gpt-5.4", "temperature": 0.7 ] as [String : Any] let postData = JSONSerialization.data(withJSONObject: parameters, options: []) let request = NSMutableURLRequest(url: NSURL(string: "https://openrouter.ai/api/v1/presets/my-preset/chat/completions")! as URL, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 10.0) request.httpMethod = "POST" request.allHTTPHeaderFields = headers request.httpBody = postData as Data let session = URLSession.shared let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in if (error != nil) { print(error as Any) } else { let httpResponse = response as? HTTPURLResponse print(httpResponse) } }) dataTask.resume() ```