Google: gemini-2.5-flash

gemini-2.5-flash
1M context1M outToolsVisionAudio inVideoFilesCacheStructured
Released Jun 17, 2025Knowledge cutoff 2025Updated Jun 17, 2025

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. 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).

Mode chatTokenizer Gemini

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Pricing

Input price
$0.24/ 1M tokens$0.3020% off
Output price
$2.00/ 1M tokens$2.5020% off
Compatible endpoints gemini, openaiVendor Google

Performance

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Usage & Ranking

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Supported parameters

All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.

ParameterProvidersDefault
frequency_penaltySome providersNot sent by default
include_reasoningAll providers-
max_tokensAll providers-
presence_penaltySome providersNot sent by default
reasoningAll providers-
repetition_penaltySome providersNot sent by default
response_formatAll providers-
seedAll providers-
stopAll providers-
structured_outputsAll providers-
temperatureAll providersNot sent by default
tool_choiceAll providers-
toolsAll providers-
top_kSome providersNot sent by default
top_pAll providersNot sent by default

Frequently asked questions

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