Google

Gemini 3.1 Pro Preview pricing

$2 per million input tokens, $12 per million output tokens, 1.0M-token context window. A 1,500-in / 400-out request costs $0.0078.

Input / 1M tokens
$2
Output / 1M tokens
$12
Cached input / 1M
$0.200
Context window
1.0M tokens
Max output
65.5K tokens
Released
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Worked cost examples

WorkloadPer request1,000 requests6,000 requests / month
Customer-support reply (1,500 in / 400 out)$0.0078$7.80$46.80
Document summary (20,000 in / 1,000 out)$0.052$52$312
Code review pass (8,000 in / 1,500 out)$0.034$34$204

List prices only. Caching, batch tiers and volume agreements can change these numbers substantially.

Where it sits on price

Of the 30 models in this catalog, Gemini 3.1 Pro Preview ranks 23 by output price — cheaper than 7 and more expensive than 22. Cached input is billed at $0.200 per million tokens, about 10% of the standard input rate, so a high cache-hit rate changes the picture.

Price is not capability. A model that is half the price but needs two attempts, or that cannot hold your context, is the more expensive choice. Use these figures for budgeting and run your own evaluation for the quality decision.

Price it for your own workload

Enter your real request size and traffic in the calculator to get a monthly number.

Open the LLM cost calculator

Other Google models

List price last verified Oct 15, 2026 against the vendor's published pricing. Tiered by input length: <=200K tokens $2.00 in / $12.00 out; >200K tokens $4.00 in / $18.00 out (all tokens billed at the upper tier once input exceeds 200K). Values shown are the <=200K tier.. Vendors change prices without notice — confirm on the vendor's page before you commit.