Model comparison
Claude Haiku 5.5 vs Olmo 3.1 32b Think
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 37.9 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 36.3.
- Olmo 3.1 32b Think has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 5.5 | Olmo 3.1 32b Think | |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 49.5 | 37.9 |
| 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 | 15 |
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Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), Olmo 3.1 32b Think: 37.7 (#189)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena WebDev | 1587 | — |
| LMArena Coding | — | 1291 |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), Olmo 3.1 32b Think: 25.2 (#150)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| NYT Connections (extended) | 65.7% | — |
| LMArena Hard Prompts | — | 1272 |
| Mystery Game Puzzles | 30% | — |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), Olmo 3.1 32b Think: 36.3 (#168)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| LMArena Math | — | 1305 |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), Olmo 3.1 32b Think: 35.7 (#181)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| SimpleQA Verified | 23.8% | — |
| LMArena Expert | — | 1295 |
Multimodal Not comparable
Claude Haiku 5.5: 43.7 (#21), Olmo 3.1 32b Think: —
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, Olmo 3.1 32b Think: 38.1 (#231)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Non-English | — | 1209 |
| LMArena Chinese | — | 1242 |
| LMArena French | — | 1260 |
| LMArena German | — | 1262 |
| LMArena Russian | — | 1193 |
| LMArena Spanish | — | 1289 |
Instruction Following Not comparable
Claude Haiku 5.5: —, Olmo 3.1 32b Think: 65.6 (#218)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Instruction Following | — | 1247 |
Long Context Not comparable
Claude Haiku 5.5: —, Olmo 3.1 32b Think: 38.6 (#195)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Longer Query | — | 1272 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, Olmo 3.1 32b Think: 46.2 (#220)
| Benchmark | Claude Haiku 5.5 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Text | — | 1272 |
| LMArena Creative Writing | — | 1226 |
| LMArena Multi-Turn | — | 1252 |
Frequently asked questions
Is Claude Haiku 5.5 better than Olmo 3.1 32b Think?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 37.9 on the Noometry Index.
Is Claude Haiku 5.5 or Olmo 3.1 32b Think better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 37.7 in the Noometry coding category.
How many benchmarks do Claude Haiku 5.5 and Olmo 3.1 32b Think share?
0 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Olmo 3.1 32b Think has 15.