# Gemini 3.1 Pro

Model tracker · checked 2026-10-14 · https://dbggr.dev/models/gemini-3-1-pro/

Gemini 3.1 Pro is an everyday model from Google, released 19 February 2026. It's in preview. At Google it costs $2.00 per million input tokens and $12.00 per million output tokens, with a 1M-token context window.

- Made by: Alphabet (Google, Google DeepMind, Google Cloud)
- Released: 2026-02-19
- Status: Preview
- Tier: Everyday
- Weights: Closed
- Context window: 1,048,576 tokens
- Max output: 65,536 tokens
- Input: text, image, audio, video, pdf
- API id: gemini-3.1-pro-preview
- Docs: https://ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview

## Gemini 3.1 Pro price at Google

US dollars per million tokens. Blended is 3 input tokens for every output token, one number to compare on.

| Provider | Input | Output | Cached input | Blended | Batch | Checked |
|---|---|---|---|---|---|---|
| Google | $2.00 | $12.00 | $0.20 | $4.50 | 50% off | [2026-10-14](https://ai.google.dev/gemini-api/docs/pricing) |

- Google: Prompts over 200K tokens: $4 in / $18 out ($0.40 cached). Cache storage $4.50 per 1M tokens per hour. No free tier.

## Gemini 3.1 Pro benchmarks

| Benchmark | Score | What it measures | Reported by |
|---|---|---|---|
| SWE-bench Verified | 80.6% | real GitHub issues fixed | [Google](https://deepmind.google/models/gemini/pro/) |
| GPQA Diamond | 94.3% | graduate-level science questions answered correctly | [Google](https://deepmind.google/models/gemini/pro/) |
| LMArena text score | 1487 | Elo-style score from people voting between answers | [Independent](https://arena.ai/leaderboard/text) |

Scores reported by a model's maker aren't independently checked.

## Models like Gemini 3.1 Pro

| Model | Input | Output | Context | Weights |
|---|---|---|---|---|
| Gemini 3.1 Pro | $2.00 | $12.00 | 1M | Closed |
| [Command A+](https://dbggr.dev/models/command-a/) | $2.50 | $10.00 | 128K | Open |
| [Claude Sonnet 5.5](https://dbggr.dev/models/claude-sonnet-5-5/) | $2.00 | $10.00 | 1M | Closed |
| [GPT-6.1 Sol](https://dbggr.dev/models/gpt-6-1-sol/) | $2.00 | $10.00 | 1.1M | Closed |
| [Kimi K3](https://dbggr.dev/models/kimi-k3/) | $3.00 | $15.00 | 1M | Open |
| [Ember-1](https://dbggr.dev/models/ember-1/) | $3.00 | $15.00 | 1M | Closed |

## FAQ

### How much does Gemini 3.1 Pro cost?

Gemini 3.1 Pro costs $2.00 per million input tokens and $12.00 per million output tokens at Google, and $0.20 per million cached input tokens, with 50% off for batch requests. Prices are list prices in US dollars, last checked 14 October 2026.

### What is Gemini 3.1 Pro's context window?

Gemini 3.1 Pro takes up to 1,048,576 tokens in one request and writes up to 65,536 tokens in one response.

### Is Gemini 3.1 Pro open weight?

No. Gemini 3.1 Pro is only available through Google's API; Google doesn't publish the weights.

### Where can I use Gemini 3.1 Pro?

Gemini 3.1 Pro is available from Google. At Google, call it as `gemini-3.1-pro-preview`.