Google · 1M context · updated 2026-07-28

How much does 1 million tokens cost on Gemini 3.1 Pro?

Input · what you send

$2

per 1M tokens

Output · what it writes

$12

per 1M tokens

ℹ️ Prices double for prompts above 200K tokens ($4 / $18).

What does $10 buy on Gemini 3.1 Pro?

$10 of output

833,333 tokens

  • ≈ 625,000 words written
  • ≈ 6.9 novels' worth of text
  • ≈ 83,333 lines of code generated

$10 of input

5,000,000 tokens

  • ≈ 7,496 pages read
  • ≈ 5,000 images analyzed
  • ≈ 416.7 hours of speech transcribed

For context: the cheapest model tracked here is Gemini 3 Flash at $3/1M output tokens, and the most expensive is GPT-5.5 Pro at $180 — a 60× spread.Try your own budget in the calculator →

Compare with other models

ModelInput / 1MOutput / 1Mvs Gemini 3.1 Pro (output)
GPT-5.6 Sol$5$302.5× pricier
GPT-5.5 Pro$30$18015× pricier
Claude Fable 5$10$504.2× pricier
GPT-5.6 Terra$2.50$151.3× pricier
GPT-5.5$5$302.5× pricier
Claude Opus 4.8$5$252.1× pricier
Claude Sonnet 5$2$101.2× cheaper
Gemini 3.5 Flash$1.50$91.3× cheaper
GPT-5.6 Luna$1$62× cheaper
Claude Haiku 4.5$1$52.4× cheaper
Gemini 3 Flash$0.50$34× cheaper

Gemini 3.1 Pro context window

Gemini 3.1 Pro supports a 1M token context window. That means in a single API call, you can send up to 1M tokens of input — including your prompt, system instructions, and any documents or code you want the model to process.

In practical terms, 1M tokens is approximately:

Compare all models' context windows on the context windows page.