Model comparison
Claude Haiku 5.5 vs Molmo 2 8b
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 39.1 on the Noometry Index.
Last verified . 0 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- The widest gap is in multimodal, where Claude Haiku 5.5 leads 43.7 to 30.2.
- Molmo 2 8b has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 5.5 | Molmo 2 8b | |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 49.5 | 39.1 |
| 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 | 5 |
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Category by category
Coding Not comparable
Claude Haiku 5.5: 49.2 (#50), Molmo 2 8b: —
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| LMArena WebDev | 1587 | — |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), Molmo 2 8b: 25.6 (#146)
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| NYT Connections (extended) | 65.7% | — |
| LMArena Hard Prompts | — | 1287 |
| Mystery Game Puzzles | 30% | — |
Math Not comparable
Claude Haiku 5.5: 73.6 (#18), Molmo 2 8b: —
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
Knowledge Not comparable
Claude Haiku 5.5: 50.8 (#70), Molmo 2 8b: —
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| SimpleQA Verified | 23.8% | — |
Multimodal Claude Haiku 5.5 leads
Claude Haiku 5.5: 43.7 (#21), Molmo 2 8b: 30.2 (#112)
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| LMArena Vision | — | 1081 |
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, Molmo 2 8b: 42.7 (#190)
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | — | 1276 |
Instruction Following Not comparable
Claude Haiku 5.5: —, Molmo 2 8b: 67.0 (#201)
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | — | 1270 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, Molmo 2 8b: 49.4 (#191)
| Benchmark | Claude Haiku 5.5 | Molmo 2 8b |
|---|---|---|
| LMArena Text | — | 1288 |
Frequently asked questions
Is Claude Haiku 5.5 better than Molmo 2 8b?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 39.1 on the Noometry Index.
How many benchmarks do Claude Haiku 5.5 and Molmo 2 8b share?
0 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Molmo 2 8b has 5.