G
Google

Gemini 3.1 Pro Preview pricing & price history

visionaudiovideoreasoningtoolsgoogle/gemini-3.1-pro-preview

Gemini 3.1 Pro Preview 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
29.7Intelligence index · coding 68.8

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 hourly.

Cost calculator

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About Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

FAQ

How much does Gemini 3.1 Pro Preview cost?

Gemini 3.1 Pro Preview 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?

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

Has Gemini 3.1 Pro Preview’s price changed?

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

Is Gemini 3.1 Pro Preview being deprecated?

No retirement date has been announced for Gemini 3.1 Pro Preview as of 2026-09-24.

What are cheaper alternatives to Gemini 3.1 Pro Preview?

Cheaper options include Ling 3.0 Flash VL ($0.06/$0.18), GPT-6 Luna ($0.10/$0.50), DeepSeek V4.1 Flash ($0.14/$0.42), GLM 5.3 Flash ($0.15/$0.50).