Gemini 3.1 Pro

google/gemini-3.1-pro-preview

Advanced intelligence with better thinking, improved token efficiency, and factual consistency. Optimized for software engineering and agentic workflows.

Specifications

Context Window 1M tokens

Max Output 65.5K tokens

Latency moderate

Knowledge Cutoff Jan 2025

Training Data Jan 2025

Pricing

Input $2.00 per 1M tokens

Output $12.00 per 1M tokens

Capabilities

text Text generation and understanding

vision Image and visual input processing

tool use Function calling and tool integration

reasoning Advanced multi-step reasoning with chain-of-thought

API Identifiers

Model ID google/gemini-3.1-pro-preview

Provider API ID gemini-3.1-pro-preview

Usage via Multi-Router

curl https://api.multi-router.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "x-mr-router-id: YOUR_ROUTER_ID" \
  -d '{
    "model": "google/gemini-3.1-pro-preview",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'