Gemini 3.1 Pro Preview Custom Tools API Pricing 2026
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Overview
Gemini 3.1 Pro Preview Custom Tools was released on February 25, 2026. Pricing starts at $2.00 per million input tokens and $12.00 per million output tokens. The model supports a context window of up to 1.0M tokens. API access is available through Google.
Pricing Comparison
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Current Pricing (per 1M tokens)
1 models
Provider | Model | Input $/M | Output $/M | Coding | MMLU | GPQA | Context | Actions |
|---|---|---|---|---|---|---|---|---|
$2.000 | $12.000 | — | — | — | 1,048,576 |
* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.
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