Noometry

Model comparison

Claude Haiku 4.5 vs Olmo 3.1 32b Think

Claude Haiku 4.5 is the stronger model overall, scoring 39.5 to 37.9 on the Noometry Index.

Last verified . 15 shared benchmarks.

Claude Haiku 4.5 Anthropic

39.5

Rank #165 Confirmed

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

37.9

Rank #191 Confirmed

Summary

  • They share 15 benchmarks with published results for both. Claude Haiku 4.5 scores higher in 7 categories and Olmo 3.1 32b Think in 1 category; 8 gaps are clear of the uncertainty.
  • The widest gap is in multilingual, where Claude Haiku 4.5 leads 49.9 to 38.1.
  • Olmo 3.1 32b Think has downloadable open weights; the other is API-only.

Side by side

Claude Haiku 4.5Olmo 3.1 32b Think
ProviderAnthropicAllen Institute for AI (Ai2)
Noometry Index39.537.9
Released2025-10-15—
WeightsProprietaryOpen
Context window200K—
Max output64K—
Input $ / M tokens$1—
Output $ / M tokens$5—
Results tracked5315

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Category by category

Coding Claude Haiku 4.5 leads

Claude Haiku 4.5: 44.0 (#78), Olmo 3.1 32b Think: 37.7 (#189)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Coding14531291
SWE-bench Verified (bash only)66.6%—
LMArena WebDev1330—
SWE-bench Multilingual64.7%—
SciCode43.3%—
WeirdML45.4%—
ALE-Bench653.48—

Agentic & Tool Use Not comparable

Claude Haiku 4.5: 33.6 (#52), Olmo 3.1 32b Think: —

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
Terminal-Bench35.5%—
Berkeley Function Calling Leaderboard68.7%—
DeepResearch Bench45.5%—
BALROG31.2%—
ExploitBench13.7%—
Vending-Bench 2458.89—

Reasoning Olmo 3.1 32b Think leads

Claude Haiku 4.5: 15.1 (#320), Olmo 3.1 32b Think: 25.2 (#150)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Hard Prompts14201272
ARC-AGI-24%—
NYT Connections (extended)14.3%—
ARC-AGI-147.7%—
CritPt0%—
Chess Puzzles8%—
DTBench73.6%—
LMCA30.9%—
Epoch Capabilities Index142.41—
ForecastBench61.4—

Math Claude Haiku 4.5 leads

Claude Haiku 4.5: 44.9 (#78), Olmo 3.1 32b Think: 36.3 (#168)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Math13961305
OTIS Mock AIME 2024-202566.7%—
Omni-MATH56.1%—
MATH Level 596.4%—
FrontierMath (Feb 2025 set)5.9%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge Claude Haiku 4.5 leads

Claude Haiku 4.5: 37.7 (#153), Olmo 3.1 32b Think: 35.7 (#181)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Expert14421295
GPQA Diamond71.2%—
SimpleQA Verified13.2%—
MMLU-Pro77.7%—
Vectara Hallucination Rate9.8%—
GPQA (HELM)60.5%—

Multimodal Not comparable

Claude Haiku 4.5: 26.8 (#118), Olmo 3.1 32b Think: —

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
Blueprint-Bench 20%—
LMArena Document1420—

Multilingual Claude Haiku 4.5 leads

Claude Haiku 4.5: 49.9 (#129), Olmo 3.1 32b Think: 38.1 (#231)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Non-English13771209
LMArena Chinese14171242
LMArena French14081260
LMArena German13751262
LMArena Russian13811193
LMArena Spanish14201289
LMArena Japanese1339—
LMArena Korean1347—

Instruction Following Claude Haiku 4.5 leads

Claude Haiku 4.5: 71.4 (#149), Olmo 3.1 32b Think: 65.6 (#218)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Instruction Following14141247
IFEval80.1%—

Long Context Claude Haiku 4.5 leads

Claude Haiku 4.5: 43.6 (#92), Olmo 3.1 32b Think: 38.6 (#195)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Longer Query14271272

Writing & Preference Claude Haiku 4.5 leads

Claude Haiku 4.5: 57.9 (#123), Olmo 3.1 32b Think: 46.2 (#220)

BenchmarkClaude Haiku 4.5Olmo 3.1 32b Think
LMArena Text13961272
LMArena Creative Writing13721226
LMArena Multi-Turn14091252
WildBench83.9%—
EQ-Bench 41064—

Frequently asked questions

Is Claude Haiku 4.5 better than Olmo 3.1 32b Think?

Claude Haiku 4.5 is the stronger model overall, scoring 39.5 to 37.9 on the Noometry Index.

Is Claude Haiku 4.5 or Olmo 3.1 32b Think better for coding?

Claude Haiku 4.5 scores higher on coding benchmarks: 44.0 versus 37.7 in the Noometry coding category.

How many benchmarks do Claude Haiku 4.5 and Olmo 3.1 32b Think share?

15 benchmarks have published results for both models. Claude Haiku 4.5 has 53 scored results on Noometry and Olmo 3.1 32b Think has 15.

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