Google: Gemini 2.5 Flash Preview (thinking)

google/gemini-2.5-flash-preview:thinking

Created Apr 17, 20251,048,576 context
$0.15/M input tokens$3.50/M output tokens$0.619/K input imgs

Gemini 2.5 Flash is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks. It includes built-in "thinking" capabilities, enabling it to provide responses with greater accuracy and nuanced context handling.

Note: This model is available in two variants: thinking and non-thinking. The output pricing varies significantly depending on whether the thinking capability is active. If you select the standard variant (without the ":thinking" suffix), the model will explicitly avoid generating thinking tokens.

To utilize the thinking capability and receive thinking tokens, you must choose the ":thinking" variant, which will then incur the higher thinking-output pricing.

Additionally, Gemini 2.5 Flash is configurable through the "max tokens for reasoning" parameter, as described in the documentation (https://openrouter.ai/docs/use-cases/reasoning-tokens#max-tokens-for-reasoning).

Providers for Gemini 2.5 Flash Preview (thinking)

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

Apps using Gemini 2.5 Flash Preview (thinking)

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Recent activity on Gemini 2.5 Flash Preview (thinking)

Tokens processed per day

Uptime stats for Gemini 2.5 Flash Preview (thinking)

Uptime stats for Gemini 2.5 Flash Preview (thinking) across all providers

Sample code and API for Gemini 2.5 Flash Preview (thinking)

OpenRouter normalizes requests and responses across providers for you.

OpenRouter provides an OpenAI-compatible completion API to 300+ models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

Using third-party SDKs

For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.

    Gemini 2.5 Flash Preview (thinking) - API, Providers, Stats | OpenRouter