Noometry

Model comparison

GPT-4.5 vs Olmo 3.1 32b Instruct

Olmo 3.1 32b Instruct is the stronger model overall, scoring 38.8 to 36.9 on the Noometry Index.

Last verified . 15 shared benchmarks.

GPT-4.5 OpenAI

36.9

Rank #200 Confirmed

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

38.8

Rank #168 Confirmed

Summary

  • They share 15 benchmarks with published results for both. GPT-4.5 scores higher in 5 categories and Olmo 3.1 32b Instruct in 3 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Olmo 3.1 32b Instruct leads 25.4 to 14.1.
  • Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.

Side by side

GPT-4.5Olmo 3.1 32b Instruct
ProviderOpenAIAllen Institute for AI (Ai2)
Noometry Index36.938.8
Released2025-02-27—
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked4216

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Category by category

Coding GPT-4.5 leads

GPT-4.5: 41.8 (#102), Olmo 3.1 32b Instruct: 38.9 (#154)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Coding13971346
Aider Polyglot44.9%—
WeirdML39.4%—
LiveBench Coding75.2%—

Agentic & Tool Use Not comparable

GPT-4.5: 27.6 (#92), Olmo 3.1 32b Instruct: —

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
Cybench17.5%—

Reasoning Olmo 3.1 32b Instruct leads

GPT-4.5: 14.1 (#320), Olmo 3.1 32b Instruct: 25.4 (#131)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Hard Prompts14041322
ARC-AGI-20.8%—
SimpleBench34.5%—
ARC-AGI-110.3%—
EnigmaEval3.2%—
LiveBench Reasoning71.1%—
LiveBench Data Analysis64.3%—
Epoch Capabilities Index136.74—
ForecastBench61.7—
LiveBench69%—

Math Olmo 3.1 32b Instruct leads

GPT-4.5: 31.0 (#200), Olmo 3.1 32b Instruct: 33.6 (#169)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Math14121305
OTIS Mock AIME 2024-202537.8%—
LiveBench Math69.3%—
MATH Level 578.6%—

Knowledge Olmo 3.1 32b Instruct leads

GPT-4.5: 32.4 (#205), Olmo 3.1 32b Instruct: 35.4 (#175)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Expert13941307
GPQA Diamond68.7%—
Humanity's Last Exam5.4%—
Confabulations13.6%—

Multimodal Not comparable

GPT-4.5: 37.0 (#68), Olmo 3.1 32b Instruct: —

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Vision1195—
VPCT45%—

Multilingual GPT-4.5 leads

GPT-4.5: 52.7 (#78), Olmo 3.1 32b Instruct: 42.8 (#185)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Non-English14131275
LMArena Chinese14211304
LMArena French14171328
LMArena German14571283
LMArena Korean13921206
LMArena Russian14191268
LMArena Japanese1416—
LMArena Spanish—1337

Instruction Following GPT-4.5 leads

GPT-4.5: 72.8 (#129), Olmo 3.1 32b Instruct: 68.8 (#182)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Instruction Following14041298
LiveBench Instruction Following72.3%—

Long Context Too close to call

GPT-4.5: 40.4 (#150), Olmo 3.1 32b Instruct: 39.9 (#161)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Longer Query14061312
Fiction.LiveBench63.9%—

Writing & Preference GPT-4.5 leads

GPT-4.5: 57.1 (#129), Olmo 3.1 32b Instruct: 50.4 (#179)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Text14171311
LMArena Creative Writing13941264
LMArena Multi-Turn14441309
Short-Story Creative Writing75.6%—
EQ-Bench Creative Writing1258—
LiveBench Language61.5%—

Frequently asked questions

Is GPT-4.5 better than Olmo 3.1 32b Instruct?

Olmo 3.1 32b Instruct is the stronger model overall, scoring 38.8 to 36.9 on the Noometry Index.

Is GPT-4.5 or Olmo 3.1 32b Instruct better for coding?

GPT-4.5 scores higher on coding benchmarks: 41.8 versus 38.9 in the Noometry coding category.

How many benchmarks do GPT-4.5 and Olmo 3.1 32b Instruct share?

15 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and Olmo 3.1 32b Instruct has 16.

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