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Google: gemini-3.8-flash
gemini-3.8-flash
1M context65.5K outReasoningToolsParallel toolsVisionAudio inVideoFilesCacheStructuredWeb searchURL contextStreamingSystem msg
Released Sep 2, 2026Knowledge cutoff Aug 2026Updated Sep 2, 2026
Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
Mode chatTokenizer GeminiDeprecation Sep 2027
Pricing
Input price
$0.11/ 1M tokens85% off
Output price
$0.56/ 1M tokens85% off
Compatible endpoints gemini, openaiVendor Google
Uptime
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 |
|---|---|---|
| include_reasoning | All providers | - |
| max_tokens | All providers | - |
| reasoning | All providers | - |
| reasoning_effort | All providers | - |
| response_format | All providers | - |
| seed | All providers | - |
| stop | All providers | - |
| structured_outputs | All providers | - |
| temperature | Some providers | - |
| tool_choice | All providers | - |
| tools | All providers | - |
| top_p | Some providers | - |