Noometry

Model comparison

Claude Sonnet 5.5 vs Olmo 3.1 32b Instruct

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 39.4 on the Noometry Index.

Last verified . 12 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

Olmo 3.1 32b Instruct Allen Institute for AI (Ai2)

39.4

Rank #168 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 8 categories and Olmo 3.1 32b Instruct 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 36.3.
  • Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Olmo 3.1 32b Instruct
ProviderAnthropicAllen Institute for AI (Ai2)
Noometry Index61.939.4
Released2026-09-28—
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked3216

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 67.3 (#6), Olmo 3.1 32b Instruct: 39.5 (#157)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Coding15131347
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 3.1 32b Instruct: —

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
APEX-Agents75.5%—

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), Olmo 3.1 32b Instruct: 26.4 (#132)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Hard Prompts14951322
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 3.1 32b Instruct: 36.3 (#167)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Math15101305
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 3.1 32b Instruct: 36.1 (#175)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Expert15401308
GPQA Diamond95.6%—
SimpleQA Verified46.5%—

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Olmo 3.1 32b Instruct: —

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 55.3 (#30), Olmo 3.1 32b Instruct: 42.6 (#191)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Non-English14521275
LMArena Chinese15221304
LMArena Russian14511268
LMArena French—1328
LMArena German—1282
LMArena Korean—1206
LMArena Spanish—1336

Instruction Following Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 78.3 (#11), Olmo 3.1 32b Instruct: 68.6 (#187)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Instruction Following14951299

Long Context Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.9 (#28), Olmo 3.1 32b Instruct: 39.9 (#166)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Longer Query14981312

Writing & Preference Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#40), Olmo 3.1 32b Instruct: 50.2 (#185)

BenchmarkClaude Sonnet 5.5Olmo 3.1 32b Instruct
LMArena Text14711311
LMArena Creative Writing14651264
LMArena Multi-Turn14741309

Frequently asked questions

Is Claude Sonnet 5.5 better than Olmo 3.1 32b Instruct?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 39.4 on the Noometry Index.

Is Claude Sonnet 5.5 or Olmo 3.1 32b Instruct better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 67.3 versus 39.5 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5.5 and Olmo 3.1 32b Instruct share?

12 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Olmo 3.1 32b Instruct has 16.

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