Model comparison

Magistral Small vs Step 3

Step 3 is the stronger model overall, scoring 40.5 to 30.2 on the Noometry Index.

Last verified . 1 shared benchmarks.

Magistral Small Mistral AI

30.2

Rank #296 Confirmed

Step 3 StepFun

40.5

Rank #149 Confirmed

Summary

  • They share 1 benchmark with published results for both. Magistral Small scores higher in 0 categories and Step 3 in 4 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Step 3 leads 28.4 to 6.8.
  • The biggest single-benchmark swing is Kagi LLM Benchmark: 6.3% for Magistral Small and 62.3% for Step 3.

Side by side

Magistral Small and Step 3 specifications
Magistral SmallStep 3
ProviderMistral AIStepFun
Noometry Index30.240.5
Released2025-06-10—
WeightsOpenOpen
Context window128K—
Max output40K—
Input $ / M tokens$0.50—
Output $ / M tokens$1.50—
Results tracked1017

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Category by category

Coding Step 3 leads

Magistral Small: 38.4 (#176), Step 3: 40.1 (#147)

Coding benchmarks
BenchmarkMagistral SmallStep 3
SciCode35.2%—
LMArena Coding—1367

Reasoning Step 3 leads

Magistral Small: 6.8 (#350), Step 3: 28.4 (#105)

Reasoning benchmarks
BenchmarkMagistral SmallStep 3
Kagi LLM Benchmark6.3%62.3%
ARC-AGI-20%—
ARC-AGI-15%—
CritPt0.3%—
Chess Puzzles3%—
LMArena Hard Prompts—1355
DTBench61.3%—
Epoch Capabilities Index133.19—

Math Step 3 leads

Magistral Small: 26.2 (#261), Step 3: 37.6 (#148)

Math benchmarks
BenchmarkMagistral SmallStep 3
OTIS Mock AIME 2024-202530%—
LMArena Math—1366

Knowledge Step 3 leads

Magistral Small: 30.9 (#223), Step 3: 36.8 (#164)

Knowledge benchmarks
BenchmarkMagistral SmallStep 3
GPQA Diamond56.1%—
LMArena Expert—1333

Multimodal Not comparable

Magistral Small: —, Step 3: 35.5 (#86)

Multimodal benchmarks
BenchmarkMagistral SmallStep 3
LMArena Vision—1177

Multilingual Not comparable

Magistral Small: —, Step 3: 46.3 (#159)

Multilingual benchmarks
BenchmarkMagistral SmallStep 3
LMArena Non-English—1327
LMArena Chinese—1397
LMArena German—1371
LMArena Korean—1269
LMArena Russian—1331
LMArena Spanish—1371

Instruction Following Not comparable

Magistral Small: —, Step 3: 70.4 (#164)

Instruction Following benchmarks
BenchmarkMagistral SmallStep 3
LMArena Instruction Following—1332

Long Context Not comparable

Magistral Small: —, Step 3: 40.3 (#157)

Long Context benchmarks
BenchmarkMagistral SmallStep 3
LMArena Longer Query—1326

Writing & Preference Not comparable

Magistral Small: —, Step 3: 54.3 (#151)

Writing & Preference benchmarks
BenchmarkMagistral SmallStep 3
LMArena Text—1350
LMArena Creative Writing—1321
LMArena Multi-Turn—1341

Frequently asked questions

Is Magistral Small better than Step 3?

Step 3 is the stronger model overall, scoring 40.5 to 30.2 on the Noometry Index.

Is Magistral Small or Step 3 better for coding?

Step 3 scores higher on coding benchmarks: 40.1 versus 38.4 in the Noometry coding category.

How many benchmarks do Magistral Small and Step 3 share?

1 benchmark has published results for both models. Magistral Small has 10 scored results on Noometry and Step 3 has 17.

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