Gemini 3.1 Pro Preview Custom Tools
gemini-3.1-pro-preview-customtools
Last refreshed 2026-05-11. Next refresh: weekly.
Gemini 3.1 Pro Preview Custom Tools is worth evaluating for rag, long context, and classification when its provider route and context window match the workload.
Decision context: RAG task fit, 1 tracked provider route, and research from 2026-04-19.
Use it for
- Teams evaluating rag, long context, and classification
- Workloads that can use a 1M context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Vision or document-understanding workloads
Cheapest output
$12.00
OpenRouter per 1M tokens
Provider routes
1
Tracked API hosts
Quality / dollar
Unknown
No task benchmark coverage yet
Freshness
2026-04-19
Researched 32d ago
Top use-case fit
RAG
Included by capability and metadata signals in the decision map.
Long context
Included by capability and metadata signals in the decision map.
Classification
Included by capability and metadata signals in the decision map.
Provider price ladder
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| OpenRouter | $2.00 | $12.00 | Serverless |
Benchmark peer barsfor RAG
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
About
Google: Gemini 3.1 Pro Preview Custom Tools available via OpenRouter. Pricing: $2/1M input, $12/1M output.
Gemini 3.1 Pro Preview Custom Tools has a 1M-token context window.
Gemini 3.1 Pro Preview Custom Tools input tokens at $2/1M, output at $12/1M.
