Gemini 3.5 Flash

Name: Gemini 3.5 Flash
Author: Google (Alphabet Inc.)

Gemini 3.5 Flash is an AI model from Google (Alphabet Inc.).

Publisher: Google (Alphabet Inc.)
Family: Gemini
Context: 1.0M
Input
Output
License: proprietary
Released: 19 May 2026

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Notes

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Attribution

Benchmark scores: frontiermathAA LiveBenchmatharenaVals AI EQ-Bench Lech Mazur

Attribution policy →

Context

1.0M

Weights

Closed

API only

Input

$1.50

/1M tok

Output

/1M tok

Blended

$3.38

#438/ 499/1M · 3:1

Speed

#103/ 498tok/s

Cache read

$0.15

0.10x input

Cache write

$0.08

0.06x input

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

Reasoning effort	Index	Speed
high	32.6	0 t/s
medium	33.6	0 t/s
minimal	23.8	0 t/s

Intelligence Index per reasoning-effort setting, via Artificial Analysis · pricing identical across tiers

Reported on 29 evals across 13 domains - best 95.3% on τ²-bench (Tau²-bench) · #20 of 321

Reported eval scores

LiveBench - Language84.6

IFBench76.3

LiveBench - Coding78.2

Terminal-Bench (Hard)40.9

LiveBench - Instruction Following75.6

LiveBench - Math88.2

LiveBench - Reasoning82

LiveBench - Data Analysis64.9

LiveBench78.9

Humanity's Last Exam (HLE)42.7

Vals Index44.8

GPQA Diamond92.2

SciCode53.9

MedCode55.8

MedScribe76.6

τ²-bench (Tau²-bench)95.3

FrontierMath39

MathArena76.3

Finance Agent (v2)57.9

MortgageTax68.1