Model comparison
Claude Haiku 5.5 vs Olmo 2 0325 32b Instruct
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 32.7 on the Noometry Index.
Last verified . 0 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 26.8.
- Olmo 2 0325 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 5.5 | Olmo 2 0325 32b Instruct | |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 49.5 | 32.7 |
| Released | 2026-10-07 | — |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 9 | 16 |
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Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), Olmo 2 0325 32b Instruct: 35.2 (#227)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena WebDev | 1587 | — |
| LMArena Coding | — | 1210 |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), Olmo 2 0325 32b Instruct: 23.6 (#175)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| NYT Connections (extended) | 65.7% | — |
| LMArena Hard Prompts | — | 1208 |
| Mystery Game Puzzles | 30% | — |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), Olmo 2 0325 32b Instruct: 26.8 (#255)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| Omni-MATH | — | 16.1% |
| LMArena Math | — | 1208 |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), Olmo 2 0325 32b Instruct: 19.5 (#279)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| SimpleQA Verified | 23.8% | — |
| MMLU-Pro | — | 41.4% |
| GPQA (HELM) | — | 28.7% |
Multimodal Not comparable
Claude Haiku 5.5: 43.7 (#21), Olmo 2 0325 32b Instruct: —
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, Olmo 2 0325 32b Instruct: 34.8 (#248)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Non-English | — | 1160 |
| LMArena Chinese | — | 1192 |
| LMArena Russian | — | 1187 |
Instruction Following Not comparable
Claude Haiku 5.5: —, Olmo 2 0325 32b Instruct: 61.5 (#244)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| IFEval | — | 78% |
| LMArena Instruction Following | — | 1186 |
Long Context Not comparable
Claude Haiku 5.5: —, Olmo 2 0325 32b Instruct: 36.2 (#234)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Longer Query | — | 1194 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, Olmo 2 0325 32b Instruct: 42.1 (#236)
| Benchmark | Claude Haiku 5.5 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Text | — | 1218 |
| LMArena Creative Writing | — | 1199 |
| WildBench | — | 73.4% |
| LMArena Multi-Turn | — | 1221 |
Frequently asked questions
Is Claude Haiku 5.5 better than Olmo 2 0325 32b Instruct?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 32.7 on the Noometry Index.
Is Claude Haiku 5.5 or Olmo 2 0325 32b Instruct better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 35.2 in the Noometry coding category.
How many benchmarks do Claude Haiku 5.5 and Olmo 2 0325 32b Instruct share?
0 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.