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google

Gemini 3.1 Pro Preview Customtools

Canonical id: google/gemini-3.1-pro-preview-customtools · Context: 1M tokens

VisionTool callingJSON mode
Route this with model=auto

Price per 1M tokens

Input $2/M · Output $12/M

+ LLMRouter platform fee: 1% of provider cost (≈ $0.02/M in · $0.12/M out) — billed as its own line, never blended into the price above.

Providers

ProviderContextInput $/MOutput $/M
google (viewing) 1M $2/M $12/M

Served through google's API — 0% additional markup beyond our 1% platform fee.

Capability profile

Reasoning●●●●○4/5
Coding●●●●●5/5
Quality●●●●○4/5

Derived from Artificial Analysis's licensed Intelligence/Coding Index — see the leaderboard for their full, independently measured scores. Source: Artificial Analysis.

API

curl https://api.llmrouter.sh/v1/chat/completions \
  -H "Authorization: Bearer llmr_sk_..." \
  -H "Content-Type: application/json" \
  -d '{"model": "gemini-3.1-pro-preview-customtools", "messages": [{"role": "user", "content": "Hello!"}]}'