Model comparison

GPT-5.5 Pro vs Olmo 3 32b Think

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 38.7 on the Noometry Index.

Last verified . 0 shared benchmarks.

GPT-5.5 Pro OpenAI

64.3

Rank #8 Confirmed

Summary

  • The widest gap is in math, where GPT-5.5 Pro leads 84.0 to 36.5.
  • Olmo 3 32b Think has downloadable open weights; the other is API-only.

Side by side

GPT-5.5 Pro and Olmo 3 32b Think specifications
GPT-5.5 ProOlmo 3 32b Think
ProviderOpenAIAllen Institute for AI (Ai2)
Noometry Index64.338.7
Released2026-04-23—
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$30—
Output $ / M tokens$180—
Results tracked1414

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Category by category

Coding Not comparable

GPT-5.5 Pro: —, Olmo 3 32b Think: 38.6 (#172)

Coding benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
LMArena Coding—1319

Reasoning GPT-5.5 Pro leads

GPT-5.5 Pro: 73.3 (#10), Olmo 3 32b Think: 25.9 (#140)

Reasoning benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
ARC-AGI-284.6%—
SimpleBench76.9%—
ARC-AGI-196.5%—
CritPt30.6%—
Chess Puzzles64%—
LMArena Hard Prompts—1302
DTBench96%—
LMCA53.9%—
Epoch Capabilities Index162.07—

Math GPT-5.5 Pro leads

GPT-5.5 Pro: 84.0 (#10), Olmo 3 32b Think: 36.5 (#165)

Math benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
FrontierMath (Tiers 1-3)87.7%—
FrontierMath Tier 478%—
OTIS Mock AIME 2024-2025100%—
LMArena Math—1316
FrontierMath (Feb 2025 set)52.4%—
FrontierMath Tier 4 (v1)39.6%—

Knowledge GPT-5.5 Pro leads

GPT-5.5 Pro: 64.1 (#19), Olmo 3 32b Think: 35.0 (#190)

Knowledge benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
GPQA Diamond93.9%—
LMArena Expert—1273

Multilingual Not comparable

GPT-5.5 Pro: —, Olmo 3 32b Think: 41.2 (#210)

Multilingual benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
LMArena Non-English—1255
LMArena Chinese—1300
LMArena French—1291
LMArena German—1290
LMArena Russian—1254

Instruction Following Not comparable

GPT-5.5 Pro: —, Olmo 3 32b Think: 67.2 (#198)

Instruction Following benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
LMArena Instruction Following—1275

Long Context Not comparable

GPT-5.5 Pro: —, Olmo 3 32b Think: 39.4 (#182)

Long Context benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
LMArena Longer Query—1296

Writing & Preference Not comparable

GPT-5.5 Pro: —, Olmo 3 32b Think: 49.1 (#193)

Writing & Preference benchmarks
BenchmarkGPT-5.5 ProOlmo 3 32b Think
LMArena Text—1300
LMArena Creative Writing—1256
LMArena Multi-Turn—1290

Frequently asked questions

Is GPT-5.5 Pro better than Olmo 3 32b Think?

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 38.7 on the Noometry Index.

How many benchmarks do GPT-5.5 Pro and Olmo 3 32b Think share?

0 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Olmo 3 32b Think has 14.

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