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Gemini 3.1 Pro Preview

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

Family
Gemini
Context
1.0M
Input
Output
Released
19 Feb 2026

Cite

Notes

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Context
1.0M
Input
$2
/1M tok
Output
$12
/1M tok
Blended
$4.50
#409/ 458/1M · 3:1
Speed
129
#79/ 458tok/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 43 evals across 18 domains - best 95.6% on τ²-bench (Tau²-bench) · #12 of 343

Reported eval scores

43