Model comparison

Mistral Large 3 vs Mistral Medium 3.1

Mistral Large 3 is the stronger model overall, scoring 38.6 to 31.5 on the Noometry Index.

Last verified . 3 shared benchmarks.

Mistral Large 3 Mistral AI

38.6

Rank #172 Confirmed

Mistral Medium 3.1 Mistral AI

31.5

Rank #260 Reported

Summary

  • They share 3 benchmarks with published results for both. Mistral Large 3 scores higher in 2 categories and Mistral Medium 3.1 in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Mistral Large 3 leads 60.2 to 55.6.
  • Mistral Large 3 is cheaper at $0.25 / $0.75 per million input/output tokens, against $0.40 / $2 for Mistral Medium 3.1.
  • Mistral Large 3 accepts more context: 262K tokens versus 131K.
  • Mistral Large 3 has downloadable open weights; the other is API-only.

Side by side

Mistral Large 3 and Mistral Medium 3.1 specifications
Mistral Large 3Mistral Medium 3.1
ProviderMistral AIMistral AI
Noometry Index38.631.5
Released2025-12-02—
WeightsOpenProprietary
Context window262K131K
Max output8K105K
Input $ / M tokens$0.25$0.40
Output $ / M tokens$0.75$2
Results tracked243

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Category by category

Coding Not comparable

Mistral Large 3: 34.1 (#230), Mistral Medium 3.1: —

Coding benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
LMArena WebDev1230—
LMArena Coding1447—

Reasoning Mistral Large 3 leads

Mistral Large 3: 14.6 (#314), Mistral Medium 3.1: 10.1 (#336)

Reasoning benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
NYT Connections (extended)7.5%6.5%
Thematic Generalization23%20.3%
Kagi LLM Benchmark50.9%—
LMArena Hard Prompts1429—

Math Not comparable

Mistral Large 3: 36.0 (#131), Mistral Medium 3.1: —

Math benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
LMArena Math1415—

Knowledge Not comparable

Mistral Large 3: 35.5 (#173), Mistral Medium 3.1: —

Knowledge benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
Vectara Hallucination Rate14.5%—
LMArena Expert1421—

Multimodal Not comparable

Mistral Large 3: 37.6 (#65), Mistral Medium 3.1: —

Multimodal benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
LMArena Vision1222—

Multilingual Not comparable

Mistral Large 3: 52.6 (#79), Mistral Medium 3.1: —

Multilingual benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
LMArena Non-English1412—
LMArena Chinese1448—
LMArena French1456—
LMArena German1438—
LMArena Japanese1399—
LMArena Korean1384—
LMArena Russian1412—
LMArena Spanish1437—

Instruction Following Not comparable

Mistral Large 3: 74.1 (#104), Mistral Medium 3.1: —

Instruction Following benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
LMArena Instruction Following1402—

Long Context Not comparable

Mistral Large 3: 43.1 (#102), Mistral Medium 3.1: —

Long Context benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
LMArena Longer Query1413—

Writing & Preference Mistral Large 3 leads

Mistral Large 3: 60.2 (#100), Mistral Medium 3.1: 55.6 (#140)

Writing & Preference benchmarks
BenchmarkMistral Large 3Mistral Medium 3.1
EQ-Bench Creative Writing14121476
LMArena Text1427—
LMArena Creative Writing1385—
LMArena Multi-Turn1429—

Frequently asked questions

Is Mistral Large 3 better than Mistral Medium 3.1?

Mistral Large 3 is the stronger model overall, scoring 38.6 to 31.5 on the Noometry Index.

Which is cheaper, Mistral Large 3 or Mistral Medium 3.1?

Mistral Large 3 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Mistral Medium 3.1 lists at $0.40 and $2.

Which has the bigger context window?

Mistral Large 3 does, with 262K tokens against 131K.

How many benchmarks do Mistral Large 3 and Mistral Medium 3.1 share?

3 benchmarks have published results for both models. Mistral Large 3 has 24 scored results on Noometry and Mistral Medium 3.1 has 3.

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