Gemini 3.1 Pro Preview Custom Tools Pricing
FastGoogle · 1M tokens context
Gemini 3.1 Pro Preview Custom Tools from Google costs $2.00 per 1 million input tokens and $12.00 per 1 million output tokens as of June 2026 (live OpenRouter data). The model supports a 1,048,756-token context window (approximately 786,567 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 | 1,048,756 tokens (~786,567 words) |
| Maximum output | 65,536 tokens |
| Cost per 1K tokens (input) | $0.0020 |
| Tier | Fast |
| Last verified |
Gemini 3. 1 Pro Preview Custom Tools is a variant of Gemini 3.
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
- ✓Massive 1M-token context window
- ✓Low latency for high-throughput workloads
- ✓Multimodal: understands images as well as text
Limitations
- –Less capable than flagship models on complex reasoning
- –Quality and availability can vary by hosting provider
Best Use Cases
Calculate Gemini 3.1 Pro Preview Custom Tools Costs
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Open Calculator →Gemini 3.1 Pro Preview Custom Tools — FAQ
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