Language

Mistral Medium 3.5

By Mistral AI, in the Mistral Medium family.

Released
28 Apr 2026
Status
Current
Context
262.1K
Max output
—
Input per 1M tokens
$1.50
Output per 1M tokens
$7.50
Open weights
Yes
License
modified-mit
Parameters
128B
Knowledge cutoff
—
Reasoning
Yes
Modalities
image, text → text

Category scores

Out of 100, from independent and third-party results only, by method category-2026-09-29.1.

Category scores
CategoryScoreRankCoverage
Knowledge & reasoning30.7Not ranked1 of 4
Coding & software engineering8.0Not ranked1 of 5
Human preference42.5Not ranked2 of 5

Benchmark results

Every result we hold for this model, with who ran it and where it was published.

Knowledge & reasoning

Knowledge & reasoning results
BenchmarkMetricValueProvenanceSettingEvaluatedSource
DTBench (Decision Theory Benchmark)Accuracy (capability questions)75.5%Third party——https://conceptualreasoning.ai/dtbench via Epoch AI
LMCA (Language Model Conceptual Argumentation)Correlation with expert ratings (Pearson r)0.2606Third party——https://conceptualreasoning.ai/lmca via Epoch AI

Scientific reasoning

Scientific reasoning results
BenchmarkMetricValueProvenanceSettingEvaluatedSource
Surface Evolver BenchMean score (partial credit)26.9%Third party——https://yhenon.github.io/surface-evolver-llm-eval/ via Epoch AI

Coding & software engineering

Coding & software engineering results
BenchmarkMetricValueProvenanceSettingEvaluatedSource
FrontierCodeMain score (Mean@5)8.0%Third party——https://cognition.com/frontiercode via Epoch AI
WeirdML (v2)Average accuracy43.7%Third party——https://htihle.github.io/weirdml.html via Epoch AI

Human preference

Human preference results
BenchmarkMetricValueProvenanceSettingEvaluatedSource
Code Arena: WebDev (arena.ai)Arena score (Elo scale)1263Independent—25 Sep 2026Arena
Code Arena: WebDev (arena.ai)Votes2322Independent—25 Sep 2026Arena
Text Arena (arena.ai)Arena score (Elo scale)1426Independent—25 Sep 2026Arena
Text Arena (arena.ai)Votes11693Independent—25 Sep 2026Arena
Vision Arena (arena.ai)Arena score (Elo scale)1200Independent—28 Sep 2026Arena
Vision Arena (arena.ai)Votes5391Independent—28 Sep 2026Arena

Other Mistral Medium versions

Sources

Mistral Medium 3.5: benchmarks, price and specs · supermarket.dev