Google: gemini-2.5-flash-lite-preview-09-2025:free
gemini-2.5-flash-lite-preview-09-2025:free
1M context65.5K outToolsParallel toolsVisionAudio inVideoFilesCacheStructuredWeb searchURL contextSystem msg
Released Sep 25, 2025Knowledge cutoff 2025Updated Sep 25, 2025
Gemini 2.5 Flash-Lite is a lightweight reasoning model in the Gemini 2.5 family, optimized for ultra-low latency and cost efficiency. It offers improved throughput, faster token generation, and better performance across common benchmarks compared to earlier Flash models. By default, "thinking" (i.e. multi-pass reasoning) is disabled to prioritize speed, but developers can enable it via the Reasoning API parameter to selectively trade off cost for intelligence.
Mode chatTokenizer GeminiExpiration 2026
Pricing
Input price
$0.00/ 1M tokens
Output price
$0.00/ 1M tokens
Compatible endpoints 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.
| Parameter | Providers | Default |
|---|---|---|
| frequency_penalty | Some providers | Not sent by default |
| include_reasoning | All providers | - |
| max_tokens | All providers | - |
| reasoning | All providers | - |
| response_format | All providers | - |
| seed | All providers | - |
| stop | All providers | - |
| structured_outputs | All providers | - |
| temperature | All providers | Not sent by default |
| tool_choice | All providers | - |
| tools | All providers | - |
| top_p | All providers | Not sent by default |