Model comparison

Mistral vs o3-pro

o3-pro is the stronger model overall, scoring 42.9 to 29.9 on the Noometry Index.

Last verified . 0 shared benchmarks.

Mistral Mistral AI

29.9

Rank #303 Confirmed

o3-pro OpenAI

42.9

Rank #105 Confirmed

Summary

  • The widest gap is in long context, where o3-pro leads 72.2 to 35.0.

Side by side

Mistral and o3-pro specifications
Mistralo3-pro
ProviderMistral AIOpenAI
Noometry Index29.942.9
Released—2025-06-10
WeightsProprietaryProprietary
Context window—200K
Max output—100K
Input $ / M tokens—$20
Output $ / M tokens—$80
Results tracked2212

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Category by category

Coding o3-pro leads

Mistral: 33.8 (#250), o3-pro: 55.5 (#24)

Coding benchmarks
BenchmarkMistralo3-pro
Aider Polyglot—84.9%
WeirdML—58.2%
LMArena Coding1162—

Reasoning o3-pro leads

Mistral: 22.2 (#200), o3-pro: 23.8 (#171)

Reasoning benchmarks
BenchmarkMistralo3-pro
ARC-AGI-2—4.9%
Kagi LLM Benchmark—72.1%
ARC-AGI-1—59.3%
LMArena Hard Prompts1149—
DTBench—86.9%
LMCA—38.5%
Epoch Capabilities Index—147.42

Math Not comparable

Mistral: 22.3 (#278), o3-pro: —

Math benchmarks
BenchmarkMistralo3-pro
Omni-MATH7.2%—
LMArena Math1180—

Knowledge o3-pro leads

Mistral: 16.6 (#288), o3-pro: 29.5 (#238)

Knowledge benchmarks
BenchmarkMistralo3-pro
MMLU-Pro27.7%—
Confabulations—14.2%
Vectara Hallucination Rate—23.3%
GPQA (HELM)30.3%—
LMArena Expert1125—

Multilingual Not comparable

Mistral: 32.8 (#254), o3-pro: —

Multilingual benchmarks
BenchmarkMistralo3-pro
LMArena Non-English1129—
LMArena Chinese1109—
LMArena French1180—
LMArena German1155—
LMArena Japanese1013—
LMArena Korean1032—
LMArena Russian1168—
LMArena Spanish1143—

Instruction Following Not comparable

Mistral: 52.6 (#288), o3-pro: —

Instruction Following benchmarks
BenchmarkMistralo3-pro
IFEval56.8%—
LMArena Instruction Following1152—

Long Context o3-pro leads

Mistral: 35.0 (#245), o3-pro: 72.2 (#1)

Long Context benchmarks
BenchmarkMistralo3-pro
Fiction.LiveBench—97.2%
LMArena Longer Query1153—

Writing & Preference o3-pro leads

Mistral: 37.0 (#260), o3-pro: 57.1 (#133)

Writing & Preference benchmarks
BenchmarkMistralo3-pro
LMArena Text1165—
LMArena Creative Writing1158—
Short-Story Creative Writing—84.4%
WildBench66%—
LMArena Multi-Turn1147—

Frequently asked questions

Is Mistral better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 29.9 on the Noometry Index.

Is Mistral or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 33.8 in the Noometry coding category.

How many benchmarks do Mistral and o3-pro share?

0 benchmarks have published results for both models. Mistral has 22 scored results on Noometry and o3-pro has 12.

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