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Gemini 3.1 Pro Preview Custom Tools pricing & price history

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Gemini 3.1 Pro Preview Custom Tools by Google costs $2.00 per 1M input tokens and $12.00 per 1M output tokens, with a 1M token context window.

$2.00Input / 1M tokens
$12.00Output / 1M tokens
1MContext window
—Intelligence index

Price history

$0.00$6.90$13.80 2026-09-24today input /1M output /1M

No price changes since tracking began on 2026-09-24. We check every 10 minutes.

Cost calculator

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About Gemini 3.1 Pro Preview Custom Tools

Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...

FAQ

How much does Gemini 3.1 Pro Preview Custom Tools cost?

Gemini 3.1 Pro Preview Custom Tools by Google costs $2.00 per 1M input tokens and $12.00 per 1M output tokens, with a 1M token context window. A typical request with 2,000 input and 500 output tokens costs about $0.01.

What is the context window of Gemini 3.1 Pro Preview Custom Tools?

Gemini 3.1 Pro Preview Custom Tools supports up to 1,048,576 tokens of context and up to 65,536 output tokens per request.

Has Gemini 3.1 Pro Preview Custom Tools’s price changed?

No price changes recorded since ModelBank started tracking it on 2026-09-24.

Is Gemini 3.1 Pro Preview Custom Tools being deprecated?

No retirement date has been announced for Gemini 3.1 Pro Preview Custom Tools as of 2026-11-12.

What are cheaper alternatives to Gemini 3.1 Pro Preview Custom Tools?

Cheaper options include GLM 5.3 Flash ($0.0399/$0.0784), DeepSeek V4.1 Flash ($0.022/$0.40), DeepSeek V4.1 Flash 1017 ($0.098/$0.29), Llama 4 Scout ($0.10/$0.30).