Benchmark Almanac

Mistral Medium 3

Mistral Medium 3 ranks first on Arena-Hard-Auto.

Mistral AI Released May 7th, 2025 Family Mistral Medium The lab's model card Compare with others
31
Benchmarks with a score
1
Ranked first, out of five or more models
3
In the top three
Mistral AI May 2025

Mistral Medium 3

Closed weights Mid-size

132.8 #151 of 256
Epoch Capabilities Index
Self-Reported Index 129.0 #283 of 404
  • Humanity's Last Exam 4.52% #43 /47
  • GPQA Diamond 59.5% #138 /229
  • HiPhO 40.4% #24 /36

Where it ranks

Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.

Knowledge and language

BenchmarkScoreRankSource
Arena-Hard-Auto 97.1% #1 of 39 Lab model card
RULER 96% #3 of 42 Lab model card
IFEval 89.4% #40 of 135 Lab model card
LMArena (Elo) 1,387 #149 of 335 Official leaderboard
MMLU-Pro 77.2% #98 of 167 Lab model card
LLM Confabulation Leaderboard 21.9% #43 of 58 Official leaderboard
Judgemark v2.1 58.5 #32 of 42 Official leaderboard
Humanity's Last Exam 4.52% #43 of 47 Official leaderboard
Global MMLU Lite 55.1% #43 of 43 Official leaderboard

Math and science

BenchmarkScoreRankSource
MATH Level 5 81.6% #28 of 94 Epoch AI run
Misguided Attention 50.6% #18 of 45 Official leaderboard
GPQA Diamond 59.5% #138 of 229 Epoch AI run
HiPhO 40.4% #24 of 36 Official leaderboard
OTIS Mock AIME 2024-2025 32.2% #143 of 212 Epoch AI run
MATH-500 91% #50 of 70 Lab model card
DTBench 62.3% #134 of 180 Official leaderboard
SciArena 885 #31 of 34 Official leaderboard
FrontierMath 0.35% #64 of 70 Epoch AI run

Coding

BenchmarkScoreRankSource
HumanEval 92.1% #7 of 101 Lab model card
MultiPL-E 81.4% #3 of 18 Lab model card
LiveCodeBench v6 30.3% #89 of 90 Lab model card

Agents and tools

BenchmarkScoreRankSource
BFCL V4 37.7% #30 of 65 Official leaderboard
LisanBench 130.7 #108 of 133 Official leaderboard
Elimination Game 2 #52 of 56 Official leaderboard

Vision, audio and robotics

BenchmarkScoreRankSource
AI2D 93.7% #11 of 52 Lab model card
DocVQA 95.3% #9 of 36 Lab model card
ChartQA 82.6% #24 of 37 Lab model card
Vision Arena 1,155 #98 of 136 Official leaderboard
MMMU 66.1% #75 of 103 Lab model card
VISTA 34.6% #42 of 54 Official leaderboard

Safety and security

BenchmarkScoreRankSource
Human Pathogen Capabilities Test v2 (HPCT v2) 24.7% #69 of 71 Official leaderboard

Its lab's numbers put it at 129.0, 3.8 points below its ECI

The Self-Reported Index fits one score to the 13 capability results Mistral AI reported for this model, on the scale of the Epoch Capabilities Index. Labs choose which benchmarks to show and how to run them, so read it as the lab's claim, not an independent measurement. The 90% interval runs from 125.2 to 132.8. How we compute it.

Its lab's number next to a leaderboard

Where the benchmark's own leaderboard, or Epoch AI's run, also has this model. Gaps mostly come from different harnesses, effort levels and task subsets. Every pair.

Benchmark Lab says Board says Gap
GPQA Diamond 57.1% GPQA Diamond 5-shot CoT 59.5% Epoch AI run −2.4 pts

Mistral AI's models over time

Mistral AI's models in color, against every other model on the Epoch Capabilities Index, by release date.

50 100 150 2023 2024 2025 2026 2027 Mistral Large 4 Mistral Medium 3.5 Mistral Medium 3 Mistral Large 2 Mistral NeMo Mixtral 8x7B Mistral 7B v0.1 50 100 150 2023 2024 2025 2026 2027 Mistral Large 4 Mistral Medium 3.5

Source: Epoch Capabilities Index, Epoch AI (CC BY 4.0)

Its launch post

The benchmarks the lab chose to headline, with the scores it gave.