Model comparison

Claude Sonnet 5 vs Olmo 3.1 32b Instruct

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 38.8 on the Noometry Index.

Last verified . 16 shared benchmarks.

Summary

  • They share 16 benchmarks with published results for both. Claude Sonnet 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 leads 66.1 to 33.6.
  • Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5 and Olmo 3.1 32b Instruct specifications
Claude Sonnet 5Olmo 3.1 32b Instruct
ProviderAnthropicAllen Institute for AI (Ai2)
Noometry Index54.538.8
Released2026-06-29—
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked5116

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Category by category

Coding Claude Sonnet 5 leads

Claude Sonnet 5: 55.5 (#20), Olmo 3.1 32b Instruct: 38.9 (#154)

Coding benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Coding14831346
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
LMArena WebDev1540—
SciCode53.6%—
GSO37.3%—
WeirdML68.8%—
ALE-Bench1,463—

Agentic & Tool Use Not comparable

Claude Sonnet 5: 42.7 (#16), Olmo 3.1 32b Instruct: —

Agentic & Tool Use benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
APEX-Agents54.5%—
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 48.2 (#37), Olmo 3.1 32b Instruct: 25.4 (#131)

Reasoning benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Hard Prompts14611322
SimpleBench60.6%—
NYT Connections (extended)75.1%—
CritPt16.9%—
Chess Puzzles35%—
Mystery Game Puzzles35%—
DTBench92.5%—
LMCA50%—
Surface Evolver Bench60%—
Bench to the Future 30.14—
Epoch Capabilities Index156.34—
ForecastBench61.1—

Math Claude Sonnet 5 leads

Claude Sonnet 5: 66.1 (#21), Olmo 3.1 32b Instruct: 33.6 (#169)

Math benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Math14671305
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
OTIS Mock AIME 2024-202594.7%—
ProofBench77%—

Knowledge Claude Sonnet 5 leads

Claude Sonnet 5: 55.7 (#42), Olmo 3.1 32b Instruct: 35.4 (#175)

Knowledge benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Expert14911307
GPQA Diamond90.5%—
SimpleQA Verified33.7%—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#26), Olmo 3.1 32b Instruct: —

Multimodal benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Vision1275—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Claude Sonnet 5 leads

Claude Sonnet 5: 54.0 (#55), Olmo 3.1 32b Instruct: 42.8 (#185)

Multilingual benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Non-English14311275
LMArena Chinese14751304
LMArena French14571328
LMArena German14481283
LMArena Korean14111206
LMArena Russian14521268
LMArena Spanish14361337
LMArena Japanese1422—

Instruction Following Claude Sonnet 5 leads

Claude Sonnet 5: 76.6 (#39), Olmo 3.1 32b Instruct: 68.8 (#182)

Instruction Following benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Instruction Following14531298

Long Context Claude Sonnet 5 leads

Claude Sonnet 5: 44.8 (#53), Olmo 3.1 32b Instruct: 39.9 (#161)

Long Context benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Longer Query14641312

Writing & Preference Claude Sonnet 5 leads

Claude Sonnet 5: 69.4 (#24), Olmo 3.1 32b Instruct: 50.4 (#179)

Writing & Preference benchmarks
BenchmarkClaude Sonnet 5Olmo 3.1 32b Instruct
LMArena Text14431311
LMArena Creative Writing14161264
LMArena Multi-Turn14541309
EQ-Bench Creative Writing1794—
EQ-Bench 41236—

Frequently asked questions

Is Claude Sonnet 5 better than Olmo 3.1 32b Instruct?

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 38.8 on the Noometry Index.

Is Claude Sonnet 5 or Olmo 3.1 32b Instruct better for coding?

Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 38.9 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5 and Olmo 3.1 32b Instruct share?

16 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Olmo 3.1 32b Instruct has 16.

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