Noometry

Model comparison

Claude 3 Opus vs Mistral Small 3

Mistral Small 3 is the stronger model overall, scoring 31.2 to 29.5 on the Noometry Index.

Last verified . 23 shared benchmarks.

Claude 3 Opus Anthropic

29.5

Rank #310 Confirmed

Mistral Small 3 Mistral AI

31.2

Rank #278 Confirmed

Summary

  • They share 23 benchmarks with published results for both. Claude 3 Opus scores higher in 4 categories and Mistral Small 3 in 4 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Claude 3 Opus leads 47.2 to 32.2.
  • The biggest single-benchmark swing is BigCodeBench Complete: 57.4% for Claude 3 Opus and 50.4% for Mistral Small 3.
  • Mistral Small 3 has downloadable open weights; the other is API-only.

Side by side

Claude 3 OpusMistral Small 3
ProviderAnthropicMistral AI
Noometry Index29.531.2
Released2024-02-292025-01-30
WeightsProprietaryOpen
Context window—33K
Max output—16K
Input $ / M tokens—$0.05
Output $ / M tokens—$0.08
Results tracked4624

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Category by category

Coding Mistral Small 3 leads

Claude 3 Opus: 32.9 (#267), Mistral Small 3: 36.5 (#207)

BenchmarkClaude 3 OpusMistral Small 3
BigCodeBench Instruct45.5%45.3%
LMArena Coding12641246
BigCodeBench Complete57.4%50.4%
WeirdML19.2%—
LiveBench Coding38.6%—
HumanEval+77.4%—
MBPP+73.3%—

Agentic & Tool Use Not comparable

Claude 3 Opus: 24.6 (#116), Mistral Small 3: —

BenchmarkClaude 3 OpusMistral Small 3
Cybench10%—
METR Time Horizons29.5%—

Reasoning Mistral Small 3 leads

Claude 3 Opus: 14.6 (#324), Mistral Small 3: 18.9 (#273)

BenchmarkClaude 3 OpusMistral Small 3
Chess Puzzles5%0%
LMArena Hard Prompts12451233
Epoch Capabilities Index126.91127.07
SimpleBench23.5%—
EnigmaEval0.8%—
LiveBench Reasoning40.6%—
DTBench61.6%—
LiveBench Data Analysis57.9%—
LMCA17%—
ForecastBench58.4—
LiveBench49.2%—
WinoGrande88.5%—

Math Mistral Small 3 leads

Claude 3 Opus: 14.8 (#299), Mistral Small 3: 16.3 (#295)

BenchmarkClaude 3 OpusMistral Small 3
OTIS Mock AIME 2024-20254.7%6.7%
LMArena Math12731240
LiveBench Math43.6%—
MATH Level 537.5%—

Knowledge Too close to call

Claude 3 Opus: 24.5 (#267), Mistral Small 3: 25.1 (#263)

BenchmarkClaude 3 OpusMistral Small 3
GPQA Diamond47.2%47.3%
Confabulations22.7%25.2%
LMArena Expert12231202
SimpleQA Verified12.6%—
MMLU84.6%—

Multimodal Not comparable

Claude 3 Opus: 27.1 (#116), Mistral Small 3: —

BenchmarkClaude 3 OpusMistral Small 3
LMArena Vision1023—

Multilingual Claude 3 Opus leads

Claude 3 Opus: 41.4 (#207), Mistral Small 3: 37.3 (#236)

BenchmarkClaude 3 OpusMistral Small 3
LMArena Non-English12581198
LMArena Chinese12481204
LMArena French12751203
LMArena German12581211
LMArena Japanese12041111
LMArena Korean11871188
LMArena Russian12801216
LMArena Spanish1246—

Instruction Following Too close to call

Claude 3 Opus: 64.1 (#228), Mistral Small 3: 63.7 (#229)

BenchmarkClaude 3 OpusMistral Small 3
LMArena Instruction Following12481214
LiveBench Instruction Following63.9%—

Long Context Too close to call

Claude 3 Opus: 38.2 (#202), Mistral Small 3: 37.8 (#211)

BenchmarkClaude 3 OpusMistral Small 3
LMArena Longer Query12591246

Writing & Preference Claude 3 Opus leads

Claude 3 Opus: 47.2 (#213), Mistral Small 3: 32.2 (#280)

BenchmarkClaude 3 OpusMistral Small 3
LMArena Text12621234
LMArena Creative Writing12351195
LMArena Multi-Turn12751217
EQ-Bench Creative Writing—707
LiveBench Language50.4%—

Frequently asked questions

Is Claude 3 Opus better than Mistral Small 3?

Mistral Small 3 is the stronger model overall, scoring 31.2 to 29.5 on the Noometry Index.

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

Mistral Small 3 scores higher on coding benchmarks: 36.5 versus 32.9 in the Noometry coding category.

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

23 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Mistral Small 3 has 24.

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