Model comparison

GPT-4.5 vs Olmo 3 32b Think

Olmo 3 32b Think is the stronger model overall, scoring 38.7 to 37.2 on the Noometry Index.

Last verified . 14 shared benchmarks.

GPT-4.5 OpenAI

37.2

Rank #208 Confirmed

Summary

  • They share 14 benchmarks with published results for both. GPT-4.5 scores higher in 5 categories and Olmo 3 32b Think in 3 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Olmo 3 32b Think leads 25.9 to 13.9.
  • Olmo 3 32b Think has downloadable open weights; the other is API-only.

Side by side

GPT-4.5 and Olmo 3 32b Think specifications
GPT-4.5Olmo 3 32b Think
ProviderOpenAIAllen Institute for AI (Ai2)
Noometry Index37.238.7
Released2025-02-27—
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked4214

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Category by category

Coding GPT-4.5 leads

GPT-4.5: 42.2 (#109), Olmo 3 32b Think: 38.6 (#172)

Coding benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Coding13961319
Aider Polyglot44.9%—
WeirdML39.4%—
LiveBench Coding75.2%—

Agentic & Tool Use Not comparable

GPT-4.5: 27.9 (#97), Olmo 3 32b Think: —

Agentic & Tool Use benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
Cybench17.5%—

Reasoning Olmo 3 32b Think leads

GPT-4.5: 13.9 (#330), Olmo 3 32b Think: 25.9 (#140)

Reasoning benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Hard Prompts14031302
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 32b Think leads

GPT-4.5: 32.6 (#211), Olmo 3 32b Think: 36.5 (#165)

Math benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Math14121316
OTIS Mock AIME 2024-202537.8%—
LiveBench Math69.3%—
MATH Level 578.6%—

Knowledge Olmo 3 32b Think leads

GPT-4.5: 32.5 (#211), Olmo 3 32b Think: 35.0 (#190)

Knowledge benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Expert13941273
GPQA Diamond68.7%—
Humanity's Last Exam5.4%—
Confabulations13.6%—

Multimodal Not comparable

GPT-4.5: 37.6 (#71), Olmo 3 32b Think: —

Multimodal benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Vision1195—
VPCT45%—

Multilingual GPT-4.5 leads

GPT-4.5: 52.5 (#83), Olmo 3 32b Think: 41.2 (#210)

Multilingual benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Non-English14131255
LMArena Chinese14211300
LMArena French14181291
LMArena German14571290
LMArena Russian14191254
LMArena Japanese1416—
LMArena Korean1392—

Instruction Following GPT-4.5 leads

GPT-4.5: 72.6 (#134), Olmo 3 32b Think: 67.2 (#198)

Instruction Following benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Instruction Following14041275
LiveBench Instruction Following72.3%—

Long Context GPT-4.5 leads

GPT-4.5: 40.4 (#155), Olmo 3 32b Think: 39.4 (#182)

Long Context benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Longer Query14061296
Fiction.LiveBench63.9%—

Writing & Preference GPT-4.5 leads

GPT-4.5: 56.9 (#134), Olmo 3 32b Think: 49.1 (#193)

Writing & Preference benchmarks
BenchmarkGPT-4.5Olmo 3 32b Think
LMArena Text14171300
LMArena Creative Writing13941256
LMArena Multi-Turn14441290
Short-Story Creative Writing75.6%—
EQ-Bench Creative Writing1258—
LiveBench Language61.5%—

Frequently asked questions

Is GPT-4.5 better than Olmo 3 32b Think?

Olmo 3 32b Think is the stronger model overall, scoring 38.7 to 37.2 on the Noometry Index.

Is GPT-4.5 or Olmo 3 32b Think better for coding?

GPT-4.5 scores higher on coding benchmarks: 42.2 versus 38.6 in the Noometry coding category.

How many benchmarks do GPT-4.5 and Olmo 3 32b Think share?

14 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and Olmo 3 32b Think has 14.

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