Gemini 3.1 Pro Pricing
FlagshipGoogle · 1M tokens context
Gemini 3.1 Pro from Google costs $2.00 per 1 million input tokens and $12.00 per 1 million output tokens as of July 2026 (live OpenRouter data). The model supports a 1,048,576-token context window (approximately 786,432 words) with a 66K-token maximum output. A typical 1,000-token request costs $0.0020 in input charges; a 10,000-token request costs $0.0200.
| Input price | $2.00 / 1M tokens |
|---|---|
| Output price | $12.00 / 1M tokens |
| Output / input ratio | 6.0× |
| Context window | 1,048,576 tokens (~786,432 words) |
| Maximum output | 65,536 tokens |
| Cost per 1K tokens (input) | $0.0020 |
| Tier | Flagship |
| Last verified |
Gemini 3.1 Pro is Google's generally-available flagship (released February 19, 2026) for complex reasoning, long-context work, and native multimodality across text, images, video, audio, and PDFs. It posts 80.6% on SWE-bench Verified, 94.3% on GPQA Diamond, and 77.1% on ARC-AGI-2, with a 1M-token context window at $2/$12 per million tokens — materially cheaper than the Claude and GPT flagships. Despite persistent speculation, there is no Gemini 3.5 Pro: Google shipped only Flash-class models in July 2026, leaving 3.1 Pro as its top Pro tier.
Input Price
$2.00
per 1 million tokens
Output Price
$12.00
per 1 million tokens
Context Window
1M tokens
max 66K output
Cost Examples
| Request Type | Tokens | Input Cost | Output Cost |
|---|---|---|---|
| 1,000 word article | 1,333 | $0.00267 | $0.0048 |
| 10-page document (2,500 words) | 3,333 | $0.00667 | $0.012 |
| 1,000 lines of code | 5,000 | $0.01 | $0.018 |
| 100K token document | 100,000 | $0.20 | $0.36 |
Output cost estimated at 30% of input token count. Use the calculator for exact figures.
Strengths
- ✓Frontier reasoning at well under flagship pricing ($2/$12 per 1M)
- ✓1M-token context with native video, audio, image and PDF input
- ✓94.3% GPQA Diamond and 77.1% ARC-AGI-2
- ✓80.6% SWE-bench Verified — competitive with far pricier models
Limitations
- –Pricing doubles above 200K context ($4/$18 per 1M)
- –Trails the top Claude models on the hardest coding benchmarks
- –SWE-bench Pro (~54.2%) falls well short of its Verified score
- –Can be confidently wrong — factual output needs verification
Best Use Cases
Calculate Gemini 3.1 Pro Costs
Use the TokenRate calculator to convert any budget, token count, or text into exact Gemini 3.1 Pro costs — and compare across all models.
Open Calculator →Gemini 3.1 Pro — FAQ
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