Mistral Medium 3.5

Mistral Medium 3.5 is an AI model from Mistral AI.

Publisher: Mistral AI
Family: Mistral
Context: 262K
Input
Output
Released: 29 Apr 2026

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Attribution

Benchmark scores: AA Vals AI EQ-Bench Lech Mazur

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Context

262K

Input

$1.50

/1M tok

Output

$7.50

/1M tok

Blended

$3

#430/ 499/1M · 3:1

Speed

168

Price & speed via Artificial Analysis · ranked across tracked models

Reported on 19 evals across 12 domains - best 94.2% on τ²-bench (Tau²-bench) · #29 of 321

Reported eval scores

19

τ²-bench (Tau²-bench)94.2

Terminal-Bench (Hard)33.3

GPQA Diamond74.8

Humanity's Last Exam (HLE)13.8

Finance Agent (v2)32.1

MortgageTax28.9

SAGE37.6

Creative Story-Writing Benchmark16

Vibe Code Bench v1.12.9

Vals Multimodal Index34.8