🇺🇸 United States🧠 GeneralistReleased February 2026
Gemini 3.1 Pro
Google
Free
Verdict
A versatile model, balanced across most use cases.
Overview
Gemini 3.1 Pro is Google DeepMind's flagship, built on a Mixture-of-Experts architecture. It leads most reasoning benchmarks (94.3% GPQA Diamond) while keeping Gemini 3 Pro's pricing ($2/$12 per million). Natively multimodal (text, image, audio, video) with a 1M-token context, it's one of the best cost/performance picks at the frontier.
Skill profile
Verified benchmarks
GPQA94.3%
SWE-Bench80.6%
MATH95.1%
What do these scores mean?
GPQA94.3%world-class
PhD-level science questions (physics, chemistry, biology), with no tool access.
SWE-Bench80.6%excellent
Resolving real GitHub issues under real conditions (SWE-bench Verified).
MATH95.1%world-class
Competition-level math problems.
Strengths
- Top-tier reasoning
- Excellent at code
- Strong French quality
- Very long context
Limitations
- No native GDPR guarantee
Who is it for
A good fit if…
- you need advanced reasoning or analysis
- you build with a coding agent
- you work in French
Skip it if…
- you handle sensitive EU data
Ideal use cases
- Complex reasoning and research
- Multimodal analysis (image, audio, video)
- Very long context (codebases, large corpora)
Access & availability
Paid API per tokenFree tier available
Key specifications
Context
1M
Input price
$2.00 $/M
Output price
$12.00 $/M
Speed
144 tok/s
Price verified Jun 1, 2026·Official source ↗Benchmarks not audited
Estimate your monthly cost
Per-token API pricing$145/ month with Gemini 3.1 Pro
For the same usage
- GPT-5$108-25%
- Claude Sonnet 4.6$196+35%
- Grok 4$256+77%
Indicative estimate based on standard API rates (excluding caching, batch and volume discounts). Always check the official pricing before committing.
Privacy
Not GDPR-compliant
Advanced data · for expertsArchitecture, modalities, detailed cost, full benchmarks▾
Advanced data · for experts
Architecture, modalities, detailed cost, full benchmarks
Architecture
Mixture-of-Experts
Size
—
Cutoff date
Dec 2024
Inputs
text, image, audio, video
Outputs
text
License
commercial
Hosting
—
Hallucination score
—
Estimated cost (API)
Typical exchange (~3k in / 1k out)
≈ $0.0180
1M in + 1M out
≈ $14.00
All benchmarks
| Arena Elo | — |
| MMLU | — |
| GPQA | 94.3% |
| HumanEval | — |
| SWE-Bench | 80.6% |
| MATH | 95.1% |