Home › Providers › google › Google: Gemini 3.1 Pro Preview

Google: Gemini 3.1 Pro Preview API Pricing

Google: Gemini 3.1 Pro Preview is an API model from google. It costs $2 per 1M input tokens and $12 per 1M output tokens, with cached input at $0.2. Its context window is 1,048,576 tokens with up to 65,536 output tokens. A workload of 10M input + 2M output tokens costs about $44 per month. The official google list price is $2 input / $12 output per 1M tokens, which matches the catalog price tracked here.
Input
$2
per 1M tokens
Output
$12
per 1M tokens
Cached input
$0.2
per 1M tokens
Context window
1.04858M
1,048,576 tokens
Blended (80/20)
$4
per 1M tokens

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...

How much does Google: Gemini 3.1 Pro Preview cost for a real workload?

At 10M input + 2M output tokens per month, Google: Gemini 3.1 Pro Preview costs about $44 ($20 input + $24 output). Try your own volumes in the cost calculator.

What is the official Google: Gemini 3.1 Pro Preview price?

Official (google)Catalog (OpenRouter)
Input /1M$2$2
Output /1M$12$12
Cached input /1M$0.2$0.2

✓ Matches the official list price. Source: google official pricing page, checked 2026-10-21.

What are cheaper alternatives to Google: Gemini 3.1 Pro Preview?

Compare Google: Gemini 3.1 Pro Preview with other models

Google: Gemini 3.1 Pro Preview vs Google: Gemma 4 26B A4B (free)Google: Gemini 3.1 Pro Preview vs Google: Gemma 4 31B (free)Google: Gemini 3.1 Pro Preview vs Google: Lyria 3 Pro PreviewGoogle: Gemini 3.1 Pro Preview vs Google: Lyria 3 Clip PreviewGoogle: Gemini 3.1 Pro Preview vs Google: Gemma 3 4BGoogle: Gemini 3.1 Pro Preview vs Google: Gemma 3 12B

Frequently asked questions

How much does Google: Gemini 3.1 Pro Preview cost?

Google: Gemini 3.1 Pro Preview costs $2 per 1M input tokens and $12 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $44.

What is the context window of Google: Gemini 3.1 Pro Preview?

Google: Gemini 3.1 Pro Preview has a context window of 1,048,576 tokens and can return up to 65,536 output tokens per response.

What are cheaper alternatives to Google: Gemini 3.1 Pro Preview?

Cheaper models include MoonshotAI: Kimi K3 (batch) ($2.28 in / $11.4 out), Xiaomi: MiMo-V2.6-Pro-UltraSpeed ($4.35 in / $8.7 out), OpenAI: GPT Audio ($2.5 in / $10 out). See the full list on this page.

Is Google: Gemini 3.1 Pro Preview free to use?

No. Google: Gemini 3.1 Pro Preview is a paid model at $2 input / $12 output per 1M tokens. 20 free models are listed on the free models page.

What is the official price of Google: Gemini 3.1 Pro Preview?

On google's official pricing page (checked 2026-10-21), Google: Gemini 3.1 Pro Preview is listed at $2 per 1M input tokens and $12 per 1M output tokens. The catalog price tracked on this page matches it exactly.

Provider: google · Model ID: google/gemini-3.1-pro-preview · Modality: text+image+file+audio+video->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices