# Claude 3 Haiku vs Molmo 2 8b

> Molmo 2 8b is the stronger model overall, scoring 38.7 to 25.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-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 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 writing & preference, where Molmo 2 8b leads 49.5 to 29.8.
- Molmo 2 8b has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 25.7 | 38.7 |
| Rank | 333 | 170 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Haiku: 26.1 (#320)
- Molmo 2 8b: —

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| WeirdML | 9.8% | — |
| BigCodeBench Instruct | 39.4% | — |
| LMArena Coding | 1199 | — |
| BigCodeBench Complete | 50.1% | — |
| CadEval | 12% | — |
| HumanEval+ | 68.9% | — |
| MBPP+ | 68.8% | — |

## Reasoning

- Claude 3 Haiku: 15.7 (#303)
- Molmo 2 8b: 24.5 (#146)

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1174 | 1288 |
| Kagi LLM Benchmark | 34.2% | — |
| DTBench | 50.1% | — |
| LMCA | 8.8% | — |
| Epoch Capabilities Index | 118.3 | — |
| ForecastBench | 53.2 | — |
| WinoGrande | 74.2% | — |

## Math

- Claude 3 Haiku: 9.2 (#313)
- Molmo 2 8b: —

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.8% | — |
| LMArena Math | 1188 | — |
| MATH Level 5 | 14.9% | — |

## Knowledge

- Claude 3 Haiku: 17.3 (#280)
- Molmo 2 8b: —

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 36.3% | — |
| Confabulations | 34.2% | — |
| LMArena Expert | 1148 | — |
| MMLU | 73.8% | — |

## Multimodal

- Claude 3 Haiku: 23.1 (#123)
- Molmo 2 8b: 29.5 (#106)

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 950 | 1081 |
| ScienceQA | 72% | — |

## Multilingual

- Claude 3 Haiku: 36.1 (#238)
- Molmo 2 8b: 42.8 (#186)

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1178 | 1275 |
| LMArena Chinese | 1155 | — |
| LMArena French | 1194 | — |
| LMArena German | 1174 | — |
| LMArena Japanese | 1102 | — |
| LMArena Korean | 1108 | — |
| LMArena Russian | 1204 | — |
| LMArena Spanish | 1165 | — |

## Instruction Following

- Claude 3 Haiku: 61.5 (#242)
- Molmo 2 8b: 67.2 (#196)

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1174 | 1270 |

## Long Context

- Claude 3 Haiku: 36.1 (#232)
- Molmo 2 8b: —

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1191 | — |

## Writing & Preference

- Claude 3 Haiku: 29.8 (#286)
- Molmo 2 8b: 49.5 (#187)

| Benchmark | Claude 3 Haiku | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1195 | 1288 |
| LMArena Creative Writing | 1157 | — |
| EQ-Bench Creative Writing | 717 | — |
| LMArena Multi-Turn | 1190 | — |

## FAQ

### Is Claude 3 Haiku better than Molmo 2 8b?

Molmo 2 8b is the stronger model overall, scoring 38.7 to 25.7 on the Noometry Index.

### How many benchmarks do Claude 3 Haiku and Molmo 2 8b share?

5 benchmarks have published results for both models. Claude 3 Haiku has 37 scored results on Noometry and Molmo 2 8b has 5.