Model Price Index
Updated 2026-07-14 · Changelog

Gemini 3.1 Pro

Google

Google's most advanced reasoning model with powerful agentic and coding capabilities

$2.00

Input

$12.00

Output

per 1M tokens
200K input tokens

Above 200K input tokens per request: $4.00 in / $18.00 out. Cache rates step at the same bracket.

Ratesper 1M tokens

Gemini 3.1 Pro pricing by input token bracket
Rate≤200K>200K
Standard Input$2.00$4.00
Standard Output$12.00$18.00
Cache Read$0.20$0.40

Bracket is selected by input tokens per request.

Estimate Your Monthly Cost

A request with input and output tokens, requests / month at a % cache hit rate $380.00/mo≤200K rate

Compare all models at this workload →

Per-request input tokens select the bracket. Excludes cache writes and batch discounts.

Additional Pricing

Context cache storageper 1M tokens/hour$4.50

Also routable via OpenRouter at the same list price. OpenRouter adds a 5.5% platform fee on pay-as-you-go credits (verified 2026-07-08).

Specifications

API Model IDgemini-3.1-pro-preview
Context Window1M tokens
Max Output65K tokens
Modalitiestext · image · audio · video
Capabilitiestool-use · streaming · json-mode · vision · code · extended-thinking

More Google Text / Chat Models

Gemini 3.5 Flash · Gemini 3.1 Flash-Lite · Gemini 3 Flash · Gemini 2.5 Pro · Gemini 2.5 Flash · Gemini 2.5 Flash-Lite