Noometry

Model comparison

Claude Sonnet 5 vs Mistral Small 3.2

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 30.8 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

54.5

Rank #26 Confirmed

Mistral Small 3.2 Mistral AI

30.8

Rank #271 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 66.1 to 24.9.
  • 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 Index54.530.8
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 (#20), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
LMArena WebDev1540—
SciCode53.6%—
GSO37.3%—
WeirdML68.8%—
LMArena Coding1483—
ALE-Bench1,463—

Agentic & Tool Use Not comparable

Claude Sonnet 5: 42.7 (#16), 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: 48.2 (#37), Mistral Small 3.2: 17.5 (#282)

BenchmarkClaude Sonnet 5Mistral Small 3.2
Chess Puzzles35%1%
Epoch Capabilities Index156.34131.73
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: 66.1 (#21), Mistral Small 3.2: 24.9 (#251)

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: 55.7 (#42), Mistral Small 3.2: 26.8 (#249)

BenchmarkClaude Sonnet 5Mistral Small 3.2
GPQA Diamond90.5%49.1%
SimpleQA Verified33.7%—
LMArena Expert1491—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#26), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Vision1275—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Not comparable

Claude Sonnet 5: 54.0 (#55), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Non-English1431—
LMArena Chinese1475—
LMArena French1457—
LMArena German1448—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Russian1452—
LMArena Spanish1436—

Instruction Following Not comparable

Claude Sonnet 5: 76.6 (#39), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Instruction Following1453—

Long Context Not comparable

Claude Sonnet 5: 44.8 (#53), Mistral Small 3.2: —

BenchmarkClaude Sonnet 5Mistral Small 3.2
LMArena Longer Query1464—

Writing & Preference Claude Sonnet 5 leads

Claude Sonnet 5: 69.4 (#24), Mistral Small 3.2: 45.1 (#219)

BenchmarkClaude Sonnet 5Mistral Small 3.2
EQ-Bench Creative Writing17941255
LMArena Text1443—
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 54.5 to 30.8 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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