Noometry

Model comparison

Claude Sonnet 5.5 vs Olmo 3 32b Think

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 38.7 on the Noometry Index.

Last verified . 12 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

Olmo 3 32b Think Allen Institute for AI (Ai2)

38.7

Rank #183 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 8 categories and Olmo 3 32b Think in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5.5 leads 87.9 to 36.5.
  • Olmo 3 32b Think has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Olmo 3 32b Think
ProviderAnthropicAllen Institute for AI (Ai2)
Noometry Index61.938.7
Released2026-09-28—
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked3214

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 67.3 (#6), Olmo 3 32b Think: 38.6 (#172)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Coding15131319
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
ALE-Bench1,819—

Agentic & Tool Use Not comparable

Claude Sonnet 5.5: 45.0 (#16), Olmo 3 32b Think: —

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
APEX-Agents75.5%—

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), Olmo 3 32b Think: 25.9 (#140)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Hard Prompts14951302
NYT Connections (extended)80.5%—
CritPt31.4%—
Mystery Game Puzzles65%—
Epoch Capabilities Index165.03—

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 87.9 (#6), Olmo 3 32b Think: 36.5 (#165)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Math15101316
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
FrontierMath Erdős2.9%—

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), Olmo 3 32b Think: 35.0 (#190)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Expert15401273
GPQA Diamond95.6%—
SimpleQA Verified46.5%—

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Olmo 3 32b Think: —

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 55.3 (#30), Olmo 3 32b Think: 41.2 (#210)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Non-English14521255
LMArena Chinese15221300
LMArena Russian14511254
LMArena French—1291
LMArena German—1290

Instruction Following Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 78.3 (#11), Olmo 3 32b Think: 67.2 (#198)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Instruction Following14951275

Long Context Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.9 (#28), Olmo 3 32b Think: 39.4 (#182)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Longer Query14981296

Writing & Preference Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#40), Olmo 3 32b Think: 49.1 (#193)

BenchmarkClaude Sonnet 5.5Olmo 3 32b Think
LMArena Text14711300
LMArena Creative Writing14651256
LMArena Multi-Turn14741290

Frequently asked questions

Is Claude Sonnet 5.5 better than Olmo 3 32b Think?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 38.7 on the Noometry Index.

Is Claude Sonnet 5.5 or Olmo 3 32b Think better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 67.3 versus 38.6 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5.5 and Olmo 3 32b Think share?

12 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Olmo 3 32b Think has 14.

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