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Gemini 3.1 Pro Preview Custom Tools
google·google/gemini-3.1-pro-preview-customtools·GA·Closed·gemini-pro series
Advanced Gemini model for complex reasoning, coding, and multimodal analysis
At a glance
Official price$2.00 / $12.00 per 1M
Cache read $0.20 · Vertex
Lowest paid$2.00 / $12.00
NanoGPT Gateway · 2× spread
Context1,048,576
⚠ Providers report 1,048,576–1,048,756; the table below is authoritative
Output limit65,536
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments
Modalities
TextImageVideoAudioPDF
Knowledge cutoff2025-01
Released / updated2026-02-19 / 2026-02-19
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 11 providers11 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| NanoGPT | Gateway | $2.00 | $12.00 | $0.20 | $0.375 | 1,048,756 ⚠ | 65,536 | |
| VertexOfficial | First-party | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | — | 1,048,576 | 65,536 | |
| GoogleOfficial | First-party | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | — | 1,048,576 | 65,536 | |
| OpenRouter | Gateway | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | $0.375 | 1,048,576 | 65,536 | |
| Databricks databricks-gemini-3-1-pro | Cloud | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | — | 1,048,576 | 65,536 | |
| Merge Gateway | Gateway | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | — | 1,048,576 | 65,536 | |
| Neon gemini-3-1-pro | Cloud | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | — | 1,048,576 | 65,536 | |
| AIHubMix | Gateway | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | — | 1,048,576 | 65,536 | |
| Eden AI | Gateway | $2.00 tiered >200K: $4.00 | $12.00 | $0.20 | $0.375 | 1,048,576 | 65,536 | |
| Kilo Gateway | Gateway | $2.00 | $12.00 | $0.20 | $0.375 | 1,048,576 | 65,536 | |
| OrcaRouter | Gateway | $4.00 tiered >200K: $4.00 | $18.00 | $0.20 | — | 1,048,576 | 65,536 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1NanoGPT$784.00
2Vertex · Official$784.00
3Google · Official$784.00
4OpenRouter$784.00
5Databricks$784.00
6Merge Gateway$784.00
Switch to NanoGPT to save $0.00/mo (0%). The gap is small, so staying on the official channel is fine.
Note: this is a gateway; verify availability and rate limits yourself.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = loweffort = mediumeffort = high
Related models
Gemini 3.5 Live Translate Previewsame series$3.50 / $21.00Gemini 3 Pro Imagesame series$2.00 / $12.00Nano Banana Prosame series$2.00 / $120GLM-5.2cheaper alternative$1.40 / $4.40DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28DeepSeek V4 Flash 0731cheaper alternative$0.479 / $1.44
Price historyone sample accumulated per data sync
Input listOutput listMin blended