Tools
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Gemini 3.1 Pro

google/gemini-3.1-pro-preview

Gemini 3.1 Pro is Google's frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage. Building on the multimodal foundation of the Gemini 3 series, it combines high-precision reasoning across text, image, video, audio, and code with a 1M-token context window, and introduces a medium thinking level to balance cost, speed, and performance. It excels at agentic coding, structured planning, and multimodal analysis.

Tool callingStructured outputReasoningVision
Context
1M
1,048,576 tokens
Max output
25K
25,000 tokens
Input price
$2.00
2,000 Gold Karma / 1M
Output price
$12.00
12,000 Gold Karma / 1M

Quick start

Drop-in requests for the OpenAI-compatible Deva endpoint.

1curl https://api.deva.me/v1/chat/completions \2  -H "Authorization: Bearer $DEVA_API_KEY" \3  -H "Content-Type: application/json" \4  -d '{5    "model": "google/gemini-3.1-pro-preview",6    "messages": [{"role":"user","content":"Hello from Deva"}],7    "stream": true8  }'

Capabilities

Feature metadata advertised for this model.

Tool callingStructured outputReasoningVisionStreaming

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