Noometry

Model comparison

Mistral Large 3 vs Mistral Small 3.1

Mistral Large 3 is the stronger model overall, scoring 39.1 to 31.7 on the Noometry Index.

Last verified . 19 shared benchmarks.

Mistral Large 3 Mistral AI

39.1

Rank #176 Confirmed

Mistral Small 3.1 Mistral AI

31.7

Rank #269 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Mistral Large 3 scores higher in 7 categories and Mistral Small 3.1 in 2 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Mistral Large 3 leads 38.7 to 14.7.
  • Mistral Large 3 is cheaper at $0.25 / $0.75 per million input/output tokens, against $0.35 / $0.56 for Mistral Small 3.1.
  • Mistral Large 3 accepts more context: 262K tokens versus 128K.

Side by side

Mistral Large 3Mistral Small 3.1
ProviderMistral AIMistral AI
Noometry Index39.131.7
Released2025-12-022025-03-17
WeightsOpenOpen
Context window262K128K
Max output8K102K
Input $ / M tokens$0.25$0.35
Output $ / M tokens$0.75$0.56
Results tracked2428

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Category by category

Coding Mistral Small 3.1 leads

Mistral Large 3: 34.4 (#237), Mistral Small 3.1: 38.3 (#179)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Coding14481309
LMArena WebDev1230—

Reasoning Mistral Small 3.1 leads

Mistral Large 3: 15.2 (#319), Mistral Small 3.1: 19.7 (#254)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Hard Prompts14291278
Kagi LLM Benchmark50.9%—
NYT Connections (extended)7.5%—
Chess Puzzles—1%
Thematic Generalization23%—
Epoch Capabilities Index—127.48

Math Mistral Large 3 leads

Mistral Large 3: 38.7 (#129), Mistral Small 3.1: 14.7 (#301)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Math14141262
OTIS Mock AIME 2024-2025—3.9%
Omni-MATH—24.8%

Knowledge Mistral Large 3 leads

Mistral Large 3: 36.0 (#177), Mistral Small 3.1: 22.6 (#271)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Expert14211257
GPQA Diamond—41.9%
MMLU-Pro—61%
Vectara Hallucination Rate14.5%—
GPQA (HELM)—39.2%

Multimodal Mistral Large 3 leads

Mistral Large 3: 38.2 (#66), Mistral Small 3.1: 33.2 (#99)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Vision12211136

Multilingual Mistral Large 3 leads

Mistral Large 3: 52.5 (#84), Mistral Small 3.1: 41.2 (#209)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Non-English14131255
LMArena Chinese14471253
LMArena French14551273
LMArena German14371266
LMArena Japanese13941208
LMArena Korean13841206
LMArena Russian14111263
LMArena Spanish14401283

Instruction Following Mistral Large 3 leads

Mistral Large 3: 74.0 (#108), Mistral Small 3.1: 63.6 (#230)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Instruction Following14031264
IFEval—75%

Long Context Mistral Large 3 leads

Mistral Large 3: 43.1 (#105), Mistral Small 3.1: 39.5 (#178)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Longer Query14131299

Writing & Preference Mistral Large 3 leads

Mistral Large 3: 60.0 (#101), Mistral Small 3.1: 37.0 (#259)

BenchmarkMistral Large 3Mistral Small 3.1
LMArena Text14281277
LMArena Creative Writing13861253
EQ-Bench Creative Writing1412761
LMArena Multi-Turn14291270
WildBench—78.8%

Frequently asked questions

Is Mistral Large 3 better than Mistral Small 3.1?

Mistral Large 3 is the stronger model overall, scoring 39.1 to 31.7 on the Noometry Index.

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

Mistral Large 3 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Mistral Small 3.1 lists at $0.35 and $0.56.

Is Mistral Large 3 or Mistral Small 3.1 better for coding?

Mistral Small 3.1 scores higher on coding benchmarks: 38.3 versus 34.4 in the Noometry coding category.

Which has the bigger context window?

Mistral Large 3 does, with 262K tokens against 128K.

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

19 benchmarks have published results for both models. Mistral Large 3 has 24 scored results on Noometry and Mistral Small 3.1 has 28.

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