Noometry

Model comparison

Claude Sonnet 5 vs Mistral Small 3.2

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 30× less per token, which makes it the better buy when Claude Sonnet 5's lead doesn't matter for your workload.

Last verified . 5 shared benchmarks.

Claude Sonnet 5 Anthropic

54.6

Rank #29 Confirmed

Mistral Small 3.2 Mistral AI

31.2

Rank #280 Confirmed

Summary

  • They share 5 benchmarks with published results for both. Claude Sonnet 5 scores higher in 4 categories and Mistral Small 3.2 in 0 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5 leads 66.2 to 26.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 94.7% for Claude Sonnet 5 and 30.3% for Mistral Small 3.2.
  • Mistral Small 3.2 is cheaper at $0.0938 / $0.25 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.
  • Claude Sonnet 5 accepts more context: 1M tokens versus 256K.
  • Mistral Small 3.2 has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5Mistral Small 3.2
ProviderAnthropicMistral AI
Noometry Index54.631.2
Released2026-06-292025-06-20
WeightsProprietaryOpen
Context window1M256K
Max output128K16K
Input $ / M tokens$2$0.0938
Output $ / M tokens$10$0.25
Results tracked516

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Category by category

Coding Not comparable

Claude Sonnet 5: 55.5 (#26), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
LMArena WebDev1541—
SciCode54.3%—
GSO37.3%—
WeirdML68.8%—
LMArena Coding1483—
ALE-Bench1,463—

Agentic & Tool Use Not comparable

Claude Sonnet 5: 42.8 (#18), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
APEX-Agents54.5%—
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 49.1 (#39), Mistral Small 3.2: 18.1 (#287)

BenchmarkClaude Sonnet 5Mistral Small 3.2
Chess Puzzles35%1%
Epoch Capabilities Index156.21131.74
SimpleBench60.6%—
Kagi LLM Benchmark—40.4%
NYT Connections (extended)75.1%—
CritPt16.9%—
LMArena Hard Prompts1461—
Mystery Game Puzzles35%—
DTBench92.5%—
LMCA50%—
Surface Evolver Bench60%—
Bench to the Future 30.14—
ForecastBench61.1—

Math Claude Sonnet 5 leads

Claude Sonnet 5: 66.2 (#27), Mistral Small 3.2: 26.3 (#260)

BenchmarkClaude Sonnet 5Mistral Small 3.2
OTIS Mock AIME 2024-202594.7%30.3%
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
ProofBench77%—
LMArena Math1467—

Knowledge Claude Sonnet 5 leads

Claude Sonnet 5: 55.6 (#47), Mistral Small 3.2: 26.7 (#256)

BenchmarkClaude Sonnet 5Mistral Small 3.2
GPQA Diamond90.5%49.1%
SimpleQA Verified33.7%—
LMArena Expert1490—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#31), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Vision1274—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Not comparable

Claude Sonnet 5: 53.8 (#55), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Non-English1431—
LMArena Chinese1477—
LMArena French1460—
LMArena German1440—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Russian1451—
LMArena Spanish1437—

Instruction Following Not comparable

Claude Sonnet 5: 76.3 (#41), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Instruction Following1452—

Long Context Not comparable

Claude Sonnet 5: 44.8 (#55), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Longer Query1463—

Writing & Preference Claude Sonnet 5 leads

Claude Sonnet 5: 69.2 (#25), Mistral Small 3.2: 45.0 (#224)

BenchmarkClaude Sonnet 5Mistral Small 3.2
EQ-Bench Creative Writing17941255
LMArena Text1442—
LMArena Creative Writing1416—
EQ-Bench 41236—
LMArena Multi-Turn1454—

Frequently asked questions

Is Claude Sonnet 5 better than Mistral Small 3.2?

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 30× less per token, which makes it the better buy when Claude Sonnet 5's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 5 or Mistral Small 3.2?

Mistral Small 3.2 is cheaper. It lists at $0.0938 per million input tokens and $0.25 per million output tokens; Claude Sonnet 5 lists at $2 and $10.

Which has the bigger context window?

Claude Sonnet 5 does, with 1M tokens against 256K.

How many benchmarks do Claude Sonnet 5 and Mistral Small 3.2 share?

5 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Mistral Small 3.2 has 6.

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