Explore collections of the best AI models, all accessible through a single API. Browse lists of free LLMs, top image generation APIs, the best coding models, and more.
Browse and compare top image generation models on OpenRouter. Create images from text prompts using GPT-5 Image from OpenAI, Nano Banana (Gemini) from Google, and other leading image generation models through one unified API.
Access powerful AI models at zero cost. Experiment, learn, and build with free AI models and LLMs. OpenRouter is committed to keeping AI accessible for everyone.
Discover AI models that support tool calling and function calling. Build intelligent agents and automated workflows with LLMs that can interact with external tools, APIs, and databases.
Browse AI models that allow distillation and training. Build compliant training datasets and fine-tune smaller, specialized models from these distillable models available on OpenRouter.
Compare the best AI models for coding on OpenRouter. Find top LLMs for code generation, debugging, AI coding assistants and agentic coding workflows.
Top AI models for roleplay, RP and character chat on OpenRouter. Compare the best LLMs for Janitor AI, SillyTavern, and creative writing.
Compare vision models and multimodal LLMs on OpenRouter. Find AI models that analyze images, read documents, interpret charts and answer questions about visual content through a single API.
Discover the most popular AI models to use with OpenClaw, the open-source autonomous AI agent. See top LLMs used in OpenClaw, ranked by real usage data on OpenRouter.
Explore text embedding models on OpenRouter. Find top embedding APIs for semantic search, RAG pipelines, clustering, and similarity matching through one unified API.
Browse video generation models available on OpenRouter. Create videos from text and image prompts using leading video generation models through one API gateway.
Compare the best AI audio generation models on OpenRouter. Find top models for music generation, sound generation, and audio-output applications through one unified API.
Explore the best text-to-speech models on OpenRouter. Compare top TTS APIs for voice generation, narration, assistants, accessibility, and audio apps.
Find the best speech-to-text and transcription models on OpenRouter. Compare top audio transcription APIs for meetings, calls, captions, and speech recognition.
Compare the best rerank models on OpenRouter for semantic search, RAG pipelines, recommendation systems, and retrieval quality through one API.