Noometry

Model comparison

Claude 3 Sonnet vs Mistral Small 3

Mistral Small 3 is the stronger model overall, scoring 31.2 to 29.0 on the Noometry Index.

Last verified . 21 shared benchmarks.

Claude 3 Sonnet Anthropic

29.0

Rank #319 Confirmed

Mistral Small 3 Mistral AI

31.2

Rank #278 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Claude 3 Sonnet scores higher in 3 categories and Mistral Small 3 in 5 categories; 6 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Claude 3 Sonnet leads 42.1 to 32.2.
  • The biggest single-benchmark swing is GPQA Diamond: 40.6% for Claude 3 Sonnet and 47.3% for Mistral Small 3.
  • Mistral Small 3 has downloadable open weights; the other is API-only.

Side by side

Claude 3 SonnetMistral Small 3
ProviderAnthropicMistral AI
Noometry Index29.031.2
Released2024-02-292025-01-30
WeightsProprietaryOpen
Context window—33K
Max output—16K
Input $ / M tokens—$0.05
Output $ / M tokens—$0.08
Results tracked3024

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Category by category

Coding Mistral Small 3 leads

Claude 3 Sonnet: 29.6 (#302), Mistral Small 3: 36.5 (#207)

BenchmarkClaude 3 SonnetMistral Small 3
BigCodeBench Instruct42.7%45.3%
LMArena Coding12231246
BigCodeBench Complete53.8%50.4%
WeirdML10.2%—
HumanEval+64%—
MBPP+69.3%—

Reasoning Claude 3 Sonnet leads

Claude 3 Sonnet: 20.5 (#237), Mistral Small 3: 18.9 (#273)

BenchmarkClaude 3 SonnetMistral Small 3
LMArena Hard Prompts11971233
Epoch Capabilities Index120.7127.07
Chess Puzzles—0%
DTBench53.6%—
WinoGrande75.1%—

Math Mistral Small 3 leads

Claude 3 Sonnet: 10.7 (#310), Mistral Small 3: 16.3 (#295)

BenchmarkClaude 3 SonnetMistral Small 3
OTIS Mock AIME 2024-20252.5%6.7%
LMArena Math12131240
MATH Level 518.2%—

Knowledge Mistral Small 3 leads

Claude 3 Sonnet: 21.1 (#276), Mistral Small 3: 25.1 (#263)

BenchmarkClaude 3 SonnetMistral Small 3
GPQA Diamond40.6%47.3%
LMArena Expert11731202
Confabulations—25.2%
MMLU75.9%—

Multimodal Not comparable

Claude 3 Sonnet: 25.2 (#125), Mistral Small 3: —

BenchmarkClaude 3 SonnetMistral Small 3
LMArena Vision984—

Multilingual Too close to call

Claude 3 Sonnet: 37.8 (#234), Mistral Small 3: 37.3 (#236)

BenchmarkClaude 3 SonnetMistral Small 3
LMArena Non-English12051198
LMArena Chinese11891204
LMArena French12291203
LMArena German12041211
LMArena Japanese11311111
LMArena Korean11281188
LMArena Russian12271216
LMArena Spanish1204—

Instruction Following Too close to call

Claude 3 Sonnet: 62.8 (#235), Mistral Small 3: 63.7 (#229)

BenchmarkClaude 3 SonnetMistral Small 3
LMArena Instruction Following11991214

Long Context Mistral Small 3 leads

Claude 3 Sonnet: 36.7 (#228), Mistral Small 3: 37.8 (#211)

BenchmarkClaude 3 SonnetMistral Small 3
LMArena Longer Query12111246

Writing & Preference Claude 3 Sonnet leads

Claude 3 Sonnet: 42.1 (#238), Mistral Small 3: 32.2 (#280)

BenchmarkClaude 3 SonnetMistral Small 3
LMArena Text12181234
LMArena Creative Writing11861195
LMArena Multi-Turn12271217
EQ-Bench Creative Writing—707

Frequently asked questions

Is Claude 3 Sonnet better than Mistral Small 3?

Mistral Small 3 is the stronger model overall, scoring 31.2 to 29.0 on the Noometry Index.

Is Claude 3 Sonnet or Mistral Small 3 better for coding?

Mistral Small 3 scores higher on coding benchmarks: 36.5 versus 29.6 in the Noometry coding category.

How many benchmarks do Claude 3 Sonnet and Mistral Small 3 share?

21 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Mistral Small 3 has 24.

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