Gemini 3.1 Pro Pricing & Token Cost Calculator (1049K context)

What Gemini 3.1 Pro costs in practice

Workload	Cost / call	Cost @ 1K req/day
Light · 1K in / 300 out	$0.0092	$280.02/mo
Standard · 10K in / 2K out	$0.0680	$2069.75/mo
Heavy · 100K in / 20K out	$0.6800	$20697.50/mo

Estimates assume medium reasoning effort, no batch discounts and no prompt caching. Turn on prompt caching and the input side typically drops 50–90% — run your own mix in the free calculator preloaded with Gemini 3.1 Pro.

How Gemini 3.1 Pro compares

About this page

Prices were last verified on August 20, 2026 against Google's official pricing page. Providers reprice frequently — see our methodology for exactly how estimates are computed, and always confirm final rates with the provider before budgeting.

Gemini 3.1 Pro FAQ

How much does Gemini 3.1 Pro cost?

Gemini 3.1 Pro charges $2 per million input tokens and $12 per million output tokens. Batch mode cuts both rates by 50% for asynchronous workloads.

What is the context window of Gemini 3.1 Pro?

Gemini 3.1 Pro supports a context window of 1,048,576 tokens (1.0M) — roughly 786,432 English words or about 1,573 pages of text in a single request.

Does Gemini 3.1 Pro support images, audio or reasoning?

Gemini 3.1 Pro offers vision & image understanding, audio input, hidden reasoning tokens. Premium tier — thinking tokens billed as output.

How do I estimate my Gemini 3.1 Pro bill?

A typical workload of 10K input and 2K output tokens costs about $0.0680 per call with Gemini 3.1 Pro. At 1,000 requests per day that is roughly $2069.75 per month. Use the free AITokenCalculator to run your exact numbers.