# Claude 3.5 Haiku vs Molmo 2 8b

> Molmo 2 8b is the stronger model overall, scoring 38.7 to 28.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-5-haiku-vs-molmo-2-8b
- Last updated: 2026-10-10
- Shared benchmarks: 5

## Summary

- They share 5 benchmarks with published results for both. Claude 3.5 Haiku scores higher in 0 categories and Molmo 2 8b in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Molmo 2 8b leads 24.5 to 17.1.
- Molmo 2 8b has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 28.9 | 38.7 |
| Rank | 309 | 170 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 3.5 Haiku: 32.6 (#258)
- Molmo 2 8b: —

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| Aider Polyglot | 28% | — |
| SciCode | 27.4% | — |
| WeirdML | 30.7% | — |
| BigCodeBench Instruct | 46.1% | — |
| LiveBench Coding | 51.4% | — |
| LMArena Coding | 1287 | — |
| BigCodeBench Complete | 59% | — |
| CadEval | 32% | — |

## Agentic & Tool Use

- Claude 3.5 Haiku: 27.7 (#90)
- Molmo 2 8b: —

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| BALROG | 19.3% | — |

## Reasoning

- Claude 3.5 Haiku: 17.1 (#286)
- Molmo 2 8b: 24.5 (#146)

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1251 | 1288 |
| CritPt | 0% | — |
| LiveBench Reasoning | 28.1% | — |
| DTBench | 56.7% | — |
| LiveBench Data Analysis | 48.5% | — |
| Epoch Capabilities Index | 127.15 | — |
| LiveBench | 43.5% | — |

## Math

- Claude 3.5 Haiku: 13.7 (#294)
- Molmo 2 8b: —

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.3% | — |
| Omni-MATH | 22.4% | — |
| LiveBench Math | 35.5% | — |
| LMArena Math | 1244 | — |
| MATH Level 5 | 46.4% | — |
| FrontierMath (Feb 2025 set) | 0.3% | — |

## Knowledge

- Claude 3.5 Haiku: 18.7 (#276)
- Molmo 2 8b: —

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 38.1% | — |
| MMLU-Pro | 60.5% | — |
| Confabulations | 36.7% | — |
| GPQA (HELM) | 36.3% | — |
| LMArena Expert | 1208 | — |
| MMLU | 74.3% | — |

## Multimodal

- Claude 3.5 Haiku: 26.3 (#113)
- Molmo 2 8b: 29.5 (#106)

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 1092 | 1081 |
| GeoBench | 34% | — |

## Multilingual

- Claude 3.5 Haiku: 40.2 (#213)
- Molmo 2 8b: 42.8 (#186)

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1238 | 1275 |
| LMArena Chinese | 1229 | — |
| LMArena French | 1262 | — |
| LMArena German | 1237 | — |
| LMArena Japanese | 1175 | — |
| LMArena Korean | 1172 | — |
| LMArena Russian | 1253 | — |
| LMArena Spanish | 1261 | — |

## Instruction Following

- Claude 3.5 Haiku: 63.1 (#229)
- Molmo 2 8b: 67.2 (#196)

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1241 | 1270 |
| LiveBench Instruction Following | 61.9% | — |
| IFEval | 79.2% | — |

## Long Context

- Claude 3.5 Haiku: 38.3 (#195)
- Molmo 2 8b: —

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1261 | — |

## Writing & Preference

- Claude 3.5 Haiku: 42.9 (#228)
- Molmo 2 8b: 49.5 (#187)

| Benchmark | Claude 3.5 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1255 | 1288 |
| LMArena Creative Writing | 1233 | — |
| Short-Story Creative Writing | 73.5% | — |
| EQ-Bench Creative Writing | 1146 | — |
| WildBench | 76% | — |
| LMArena Multi-Turn | 1265 | — |
| LiveBench Language | 35.4% | — |

## FAQ

### Is Claude 3.5 Haiku better than Molmo 2 8b?

Molmo 2 8b is the stronger model overall, scoring 38.7 to 28.9 on the Noometry Index.

### How many benchmarks do Claude 3.5 Haiku and Molmo 2 8b share?

5 benchmarks have published results for both models. Claude 3.5 Haiku has 49 scored results on Noometry and Molmo 2 8b has 5.