Noometry

Model comparison

GPT-5.5 Instant vs Olmo 2 0325 32b Instruct

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 32.7 on the Noometry Index.

Last verified . 11 shared benchmarks.

GPT-5.5 Instant OpenAI

42.7

Rank #110 Confirmed

Olmo 2 0325 32b Instruct Allen Institute for AI (Ai2)

32.7

Rank #254 Confirmed

Summary

  • They share 11 benchmarks with published results for both. GPT-5.5 Instant scores higher in 7 categories and Olmo 2 0325 32b Instruct in 1 category; 7 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where GPT-5.5 Instant leads 48.9 to 19.5.
  • Olmo 2 0325 32b Instruct has downloadable open weights; the other is API-only.

Side by side

GPT-5.5 InstantOlmo 2 0325 32b Instruct
ProviderOpenAIAllen Institute for AI (Ai2)
Noometry Index42.732.7
Released2026-05-05—
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked2716

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Category by category

Coding GPT-5.5 Instant leads

GPT-5.5 Instant: 44.3 (#74), Olmo 2 0325 32b Instruct: 35.2 (#227)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Coding14331210
SciCode48.6%—

Reasoning GPT-5.5 Instant leads

GPT-5.5 Instant: 24.9 (#155), Olmo 2 0325 32b Instruct: 23.6 (#175)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Hard Prompts14261208
CritPt0%—
Chess Puzzles12%—
Epoch Capabilities Index142.52—

Math Too close to call

GPT-5.5 Instant: 26.5 (#259), Olmo 2 0325 32b Instruct: 26.8 (#255)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Math14201208
FrontierMath (Tiers 1-3)26.3%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202568.1%—
Omni-MATH—16.1%

Knowledge GPT-5.5 Instant leads

GPT-5.5 Instant: 48.9 (#74), Olmo 2 0325 32b Instruct: 19.5 (#279)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
GPQA Diamond82.5%—
MMLU-Pro—41.4%
GPQA (HELM)—28.7%
LMArena Expert1409—

Multimodal Not comparable

GPT-5.5 Instant: 40.0 (#52), Olmo 2 0325 32b Instruct: —

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Vision1250—
LMArena Document1403—

Multilingual GPT-5.5 Instant leads

GPT-5.5 Instant: 52.8 (#80), Olmo 2 0325 32b Instruct: 34.8 (#248)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Non-English14171160
LMArena Chinese14561192
LMArena Russian14311187
LMArena French1428—
LMArena German1411—
LMArena Japanese1408—
LMArena Korean1392—
LMArena Spanish1429—

Instruction Following GPT-5.5 Instant leads

GPT-5.5 Instant: 74.2 (#100), Olmo 2 0325 32b Instruct: 61.5 (#244)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Instruction Following14061186
IFEval—78%

Long Context GPT-5.5 Instant leads

GPT-5.5 Instant: 43.4 (#96), Olmo 2 0325 32b Instruct: 36.2 (#234)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Longer Query14221194

Writing & Preference GPT-5.5 Instant leads

GPT-5.5 Instant: 61.8 (#85), Olmo 2 0325 32b Instruct: 42.1 (#236)

BenchmarkGPT-5.5 InstantOlmo 2 0325 32b Instruct
LMArena Text14191218
LMArena Creative Writing14191199
LMArena Multi-Turn14331221
WildBench—73.4%

Frequently asked questions

Is GPT-5.5 Instant better than Olmo 2 0325 32b Instruct?

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 32.7 on the Noometry Index.

Is GPT-5.5 Instant or Olmo 2 0325 32b Instruct better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 44.3 versus 35.2 in the Noometry coding category.

How many benchmarks do GPT-5.5 Instant and Olmo 2 0325 32b Instruct share?

11 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.

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