ModelsGoogle
Gemini 3.1 Pro Preview
Context
tokens
Released
on OpenRouter
Usage rank
of 28 tracked models
Token share
OpenRouter · Aug 20, 2026
Price per million tokens
Input $/MTok
OpenRouter · Aug 1, 2026
Output $/MTok
OpenRouter · Aug 1, 2026
Cache read $/MTok
OpenRouter
Cache write $/MTok
OpenRouter
| Source | Tracked slug | In $/MTok | Out $/MTok | Cache read | Cache write | Context | Effective | Last Δ (in) |
|---|---|---|---|---|---|---|---|---|
| OpenRouter | google/gemini-3.1-pro-preview | $2.00 | $12.00 | $0.2 | $0.38 | 1M | Aug 1, 2026 | 100% |
| models.dev | vercel/google/gemini-3.1-pro-preview | $2.00 | $12.00 | $0.2 | — | 1M | Aug 1, 2026 | 50% |
| llm-prices.com | gemini-3-1-pro-preview-200k | $4.00 | $18.00 | — | — | — | Jul 31, 2026 | 100% |
latest tracked price per source · Δ = most recent input-price move within that source
3 sources tracking
Input $/MTok
Output $/MTok
per-source step lines · $/MTok
history since Jan 1, 2023
Context & availability
| Provider | |
|---|---|
| Context window | 1M tokens |
| Listed on OpenRouter | Feb 19, 2026 |
| Tracked price sources | llm-prices.com · OpenRouter · models.dev |
| OpenRouter slugs | google/gemini-3.1-pro-preview · google/gemini-3.1-pro-preview-20260219 |
source: OpenRouter model catalog + tracked price feeds
id: gemini-3-1-pro
Share of OpenRouter tokens
source: OpenRouter model rankings · share of tracked coding-token volume
0.4% on Aug 20, 2026
Benchmark results
| Benchmark | Configuration | Score | Date | Source |
|---|---|---|---|---|
| AA Agentic Index | google/gemini-3.1-pro-preview | 21.4index | — | or-embedded-aa |
| AA Agentic Index | google/gemini-3.1-pro-preview:batch | 21.4index | — | or-embedded-aa |
| AA Coding Index | google/gemini-3.1-pro-preview | 68.8index | — | or-embedded-aa |
| AA Coding Index | google/gemini-3.1-pro-preview:batch | 68.8index | — | or-embedded-aa |
| AA Intelligence Index | google/gemini-3.1-pro-preview | 46.5index | — | or-embedded-aa |
| AA Intelligence Index | google/gemini-3.1-pro-preview:batch | 46.5index | — | or-embedded-aa |
scores as published by each benchmark; configurations differ — compare within a row's benchmark only
Similar models
| # | Model | Tokens/day | 7d Δ | Head-to-head |
|---|---|---|---|---|
| 39 | Claude Fable 5Anthropic | 47B | 55% | vs Gemini 3.1 Pro Preview |
| 41 | GPT-5 MiniOpenAI | 39.8B | — | vs Gemini 3.1 Pro Preview |
| 38 | Gemma 4 26B A4BGoogle | 49.2B | 3.2% | vs Gemini 3.1 Pro Preview |
| 42 | Claude Haiku 4.5Anthropic | 38.4B | 56% | vs Gemini 3.1 Pro Preview |
ranked by OpenRouter usage-rank proximity
snapshot Aug 20, 2026
Gemini 3.1 Pro Preview FAQ
- How much does Gemini 3.1 Pro Preview cost per token?
- Gemini 3.1 Pro Preview is priced at $2.00 per million input tokens and $12.00 per million output tokens, per OpenRouter as of Aug 1, 2026.
- What is Gemini 3.1 Pro Preview's context window?
- Gemini 3.1 Pro Preview supports a context window of up to 1M tokens, per Google.
- How widely used is Gemini 3.1 Pro Preview?
- Gemini 3.1 Pro Preview accounts for about 0.4% of tracked OpenRouter coding-token volume as of Aug 20, 2026.
- What are the alternatives to Gemini 3.1 Pro Preview?
- By OpenRouter usage, comparable models include Claude Fable 5, GPT-5 Mini, and Gemma 4 26B A4B. Side-by-side comparisons are linked in the alternatives table.
Track Gemini 3.1 Pro Preview
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