Claude Fable 5$22.000/MClaude Opus 5$11.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.6 Sol$12.500/MGPT-5.6 Terra$5.000/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MClaude Fable 5$22.000/MClaude Opus 5$11.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.6 Sol$12.500/MGPT-5.6 Terra$5.000/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/M
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GoogleFrontier

Gemini 3.1 Pro

Frontier

A mid-cycle upgrade to Gemini 3 Pro, released after rapid iteration on feedback from the November 3 Pro launch. Google positions it for the most complex tasks, with the clearest gains in ambitious agentic workflows. Keeps the 1M-token context window and full multimodal input.

Gemini 3.1 Pro is a frontier AI model from Google. It costs $2.000 per million input tokens and $12.000 per million output tokens (blended $5.000/M), with a 1,000,000-token context window.

Modalities text, vision, audioOfficial model page ↗Provider pricing ↗API docs ↗Compare with another model →Estimate monthly cost →
INPUT
$2.000/M
per million input tokens
OUTPUT
$12.000/M
per million output tokens
BLENDED 70/30
$5.000/M
default reference rate · how it is calculated →
CONTEXT
1,000,000
tokens
What it is good at
  • Agentic workflow execution
  • Complex multi-step reasoning
  • 1M-token context
  • Text, image, audio and video input
Typical use cases
  • Long-horizon agent runs
  • Complex analysis over mixed media
  • Multi-file coding tasks
  • Tool-chaining workflows

Benchmarks

No published benchmark scores tracked for this model yet. Frontier and reasoning models from major providers have scores; smaller models and inference-host variants typically inherit the underlying open-weights score.

More from Google

See all 24 →
Gemini 3.5 Pro
Frontier · 1,000,000 ctx
in $2.000/Mout $12.000/M
Gemini 3.6 Flash
Balanced · 1,050,000 ctx
in $1.500/Mout $7.500/M
Gemini 3.5 Flash
Balanced · 1,000,000 ctx
in $1.500/Mout $9.000/M
Gemini 3 Pro
Frontier · 1,000,000 ctx
in $2.000/Mout $12.000/M
Gemini 3 Flash
Efficient · 1,000,000 ctx
in $0.500/Mout $3.000/M
Gemini 2.5 Pro
Frontier · 1,000,000 ctx
in $1.250/Mout $10.000/M

Frequently asked questions

How much does Gemini 3.1 Pro cost?

Gemini 3.1 Pro costs $2.000 per million input tokens and $12.000 per million output tokens, for a blended reference rate of $5.000 per million tokens.

What is Gemini 3.1 Pro's context window?

Gemini 3.1 Pro supports up to 1,000,000 tokens of context in a single request.

What is Gemini 3.1 Pro best for?

Gemini 3.1 Pro is well suited to Agentic workflow execution, Complex multi-step reasoning and 1M-token context.

Who makes Gemini 3.1 Pro?

Gemini 3.1 Pro is developed and served by Google.

Compared with

All matchups →
vs Claude Fable 5vs Claude Opus 5vs Claude Sonnet 5vs Claude Opus 4.6vs Claude Opus 4.7vs Claude Sonnet 4.6

Terms used on this page

Full glossary →
TokenInput tokensOutput tokensPrice per million tokensContext windowPrompt cachingBatch APIBlended cost