Google

Gemini 3.1 Pro

Google's most capable Gemini model for complex reasoning, coding, and multimodal understanding, with a 1M-token context window and tiered long-context pricing.

ActiveAvailable from 2 providers
Tool callingCan invoke external tools and APIs (function calling) mid-response.Structured outputCan return JSON or schema-constrained responses instead of free text.ReasoningUses extended thinking / chain-of-thought for harder multi-step problems.Effort controlLets you dial thinking depth (low / medium / high) to trade cost for quality.Fine-tuningSupports training a custom variant on your own data.

Source: Gemini API models, Gemini API pricing

Price per 1M tokens
$2 in / $12 out
Context window1,048,576
Max output65,536
Cache read$0.2 / M
ModalitiesText, Image → Text
Priced across2 providers

Pricing

Every billing leg from the live catalog, in USD per 1M tokens.

Billing legRate
Input$2 / M
Output$12 / M
Cache read$0.2 / M

Cost calculator

Billing-grade math over the rate card above, including the thinking tokens most estimates miss.

Hidden reasoning tokens bill as output. 1.0x = thinking off. Medium-effort reasoning typically lands near 3x; heavy reasoning runs 6x to 8x. Set it to match your workload.

Estimated monthly cost
$1.1K
at current list prices
Fresh input$400
Cached input$0.00
Output incl. thinking$720
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Compare providers

The same model, priced across every platform that serves it. Lowest combined in/out rate is flagged.

PlatformInput / MOutput / MCache read / MBatchAccess
GoogleLowest
$2$12$0.2—First-party API
Cursor
$2$12$0.2—Direct

Price history

Has this model gotten cheaper or more expensive?

No changePriced at $2 / $12 per 1M since May 11, 2026.

More from Google

Other models from the same provider.

Gemini 3.5 Flash
google/gemini-3.5-flash
$1.5 / $9 in / out per 1M
Gemini 3 Pro
google/gemini-3-pro
$2 / $12 in / out per 1M
Gemini 3 Flash
google/gemini-3-flash
$0.5 / $3 in / out per 1M
Gemini 3.1 Flash-Lite
google/gemini-3.1-flash-lite
$0.25 / $1.5 in / out per 1M
Gemini 2.5 Pro
google/gemini-2.5-pro
$1.25 / $10 in / out per 1M
Gemini 2.5 Flash
google/gemini-2.5-flash
$0.3 / $2.5 in / out per 1M

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Rates are generated from SuperPenguin's live pricing catalog.