Noometry

Model comparison

GPT-4.5 vs Olmo 3.1 32b Instruct

Olmo 3.1 32b Instruct is the stronger model overall, scoring 39.4 to 37.2 on the Noometry Index.

Last verified . 15 shared benchmarks.

GPT-4.5 OpenAI

37.2

Rank #208 Confirmed

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

39.4

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 26.4 to 13.9.
  • 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 Index37.239.4
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: 42.2 (#109), Olmo 3.1 32b Instruct: 39.5 (#157)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Coding13961347
Aider Polyglot44.9%—
WeirdML39.4%—
LiveBench Coding75.2%—

Agentic & Tool Use Not comparable

GPT-4.5: 27.9 (#97), Olmo 3.1 32b Instruct: —

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

Reasoning Olmo 3.1 32b Instruct leads

GPT-4.5: 13.9 (#330), Olmo 3.1 32b Instruct: 26.4 (#132)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Hard Prompts14031322
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: 32.6 (#211), Olmo 3.1 32b Instruct: 36.3 (#167)

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: 32.5 (#211), Olmo 3.1 32b Instruct: 36.1 (#175)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Expert13941308
GPQA Diamond68.7%—
Humanity's Last Exam5.4%—
Confabulations13.6%—

Multimodal Not comparable

GPT-4.5: 37.6 (#71), Olmo 3.1 32b Instruct: —

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

Multilingual GPT-4.5 leads

GPT-4.5: 52.5 (#83), Olmo 3.1 32b Instruct: 42.6 (#191)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Non-English14131275
LMArena Chinese14211304
LMArena French14181328
LMArena German14571282
LMArena Korean13921206
LMArena Russian14191268
LMArena Japanese1416—
LMArena Spanish—1336

Instruction Following GPT-4.5 leads

GPT-4.5: 72.6 (#134), Olmo 3.1 32b Instruct: 68.6 (#187)

BenchmarkGPT-4.5Olmo 3.1 32b Instruct
LMArena Instruction Following14041299
LiveBench Instruction Following72.3%—

Long Context Too close to call

GPT-4.5: 40.4 (#155), Olmo 3.1 32b Instruct: 39.9 (#166)

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

Writing & Preference GPT-4.5 leads

GPT-4.5: 56.9 (#134), Olmo 3.1 32b Instruct: 50.2 (#185)

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 39.4 to 37.2 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: 42.2 versus 39.5 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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