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Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.).

Publisher
Google (Alphabet Inc.)
Family
Gemini
Context
1.0M
Input
Output
Released
19 Feb 2026

Cite

Notes

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Attribution

Attribution policy →
Context
1.0M
Input
$2
/1M tok
Output
$12
/1M tok
Blended
$4.50
#458/ 499/1M · 3:1
Speed
136
#37/ 498tok/s
Cache read
$0.20
0.10x input
Cache write
$0.38
0.19x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reported on 48 evals across 21 domains - best 95.6% on τ²-bench (Tau²-bench) · #18 of 321

Reported eval scores

48
Curvebench Env73.1
Simpleqa Verified72.7
Curvebench Hard Env22.8
Graphwalks15.1
Infraresolutionbench84.4
Codenames2
Apex Shortlist76.8
AutomationBench12.3
GPQA (Full Set)93.2
GPQA Diamond94.1
SciCode58.7
LiveBench82.4
Humanity's Last Exam (HLE)47
Vals Index33.4
MedCode59.1
MedScribe76.1
LiveBench - Language85.4
Terminal-Bench (Hard)53.8
IFBench77.1
LiveBench - Data Analysis78.5

Head-to-heads

29

benchmark comparisons against other models

vs GPT-5.541 shared evalsvs Claude Opus 4.838 shared evalsvs Claude Fable 536 shared evalsvs GPT-5.434 shared evalsvs GLM 5.132 shared evalsvs Claude Sonnet 4.632 shared evalsvs Claude Opus 4.631 shared evalsvs Claude Opus 4.731 shared evalsvs Kimi K2.530 shared evalsvs GPT-5.4 Mini30 shared evalsvs GPT-5.229 shared evalsvs Claude Opus 4.528 shared evalsvs Claude Sonnet 4.527 shared evalsvs GPT-5 Mini27 shared evalsvs Qwen3.6 Plus27 shared evalsvs Grok 4.1 Fast25 shared evalsvs DeepSeek V3.224 shared evalsvs Claude 4 Sonnet23 shared evalsvs GPT-5 Nano22 shared evalsvs GLM 4.721 shared evalsvs Gemini 2.5 Pro20 shared evalsvs GPT-519 shared evalsvs gpt-oss-120b18 shared evalsvs GPT-6 Astra16 shared evalsvs GPT-4o14 shared evalsvs GPT-4.113 shared evalsvs GPT-4.1 Mini12 shared evalsvs GPT-4o-mini12 shared evalsvs GPT-4.1 Nano12 shared evals