Gemini 3.1 Pro Preview Custom Tools
GOOGLE Developer Architecture Profile
Intelligence (ELO)1493Chatbot Arena Verified
Max Context1,048,756Tokens
API Cost / 1M$14.00Blended Prompt + Completion
Model Capabilities
- Fictional
- Drafting
- Classification
- Conversational
- Top Tier
- Coding & Logic
Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...
Granular Pricing Matrix
Input Tokens (Prompt)$2.00 / 1M
Output Tokens (Completion)$12.00 / 1M
Pricing data via OpenRouter. Sync: 6/14/2026
Evaluate Competitors
VS Engine MatchupGemini 3.1 Pro Preview Custom Tools vs Google: Gemini 3.5 FlashVS Engine MatchupGemini 3.1 Pro Preview Custom Tools vs Google: Gemini 3.1 Flash LiteVS Engine MatchupGemini 3.1 Pro Preview Custom Tools vs Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)VS Engine MatchupGemini 3.1 Pro Preview Custom Tools vs OpenAI: o3 Deep ResearchVS Engine MatchupGemini 3.1 Pro Preview Custom Tools vs OpenAI: GPT-4.1 MiniVS Engine MatchupGemini 3.1 Pro Preview Custom Tools vs Anthropic: Claude Opus 4.7 (Fast)