Model comparison
Claude 3 Opus vs Molmo 2 8b
Molmo 2 8b is the stronger model overall, scoring 39.1 to 29.5 on the Noometry Index.
Last verified . 5 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 5 benchmarks with published results for both. Claude 3 Opus 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 25.6 to 14.6.
- Molmo 2 8b has downloadable open weights; the other is API-only.
Side by side
| Claude 3 Opus | Molmo 2 8b | |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 29.5 | 39.1 |
| Released | 2024-02-29 | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 46 | 5 |
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Category by category
Coding Not comparable
Claude 3 Opus: 32.9 (#267), Molmo 2 8b: —
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| WeirdML | 19.2% | — |
| BigCodeBench Instruct | 45.5% | — |
| LiveBench Coding | 38.6% | — |
| LMArena Coding | 1264 | — |
| BigCodeBench Complete | 57.4% | — |
| HumanEval+ | 77.4% | — |
| MBPP+ | 73.3% | — |
Agentic & Tool Use Not comparable
Claude 3 Opus: 24.6 (#116), Molmo 2 8b: —
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| Cybench | 10% | — |
| METR Time Horizons | 29.5% | — |
Reasoning Molmo 2 8b leads
Claude 3 Opus: 14.6 (#324), Molmo 2 8b: 25.6 (#146)
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1245 | 1287 |
| SimpleBench | 23.5% | — |
| Chess Puzzles | 5% | — |
| EnigmaEval | 0.8% | — |
| LiveBench Reasoning | 40.6% | — |
| DTBench | 61.6% | — |
| LiveBench Data Analysis | 57.9% | — |
| LMCA | 17% | — |
| Epoch Capabilities Index | 126.91 | — |
| ForecastBench | 58.4 | — |
| LiveBench | 49.2% | — |
| WinoGrande | 88.5% | — |
Math Not comparable
Claude 3 Opus: 14.8 (#299), Molmo 2 8b: —
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.7% | — |
| LiveBench Math | 43.6% | — |
| LMArena Math | 1273 | — |
| MATH Level 5 | 37.5% | — |
Knowledge Not comparable
Claude 3 Opus: 24.5 (#267), Molmo 2 8b: —
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| GPQA Diamond | 47.2% | — |
| SimpleQA Verified | 12.6% | — |
| Confabulations | 22.7% | — |
| LMArena Expert | 1223 | — |
| MMLU | 84.6% | — |
Multimodal Molmo 2 8b leads
Claude 3 Opus: 27.1 (#116), Molmo 2 8b: 30.2 (#112)
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| LMArena Vision | 1023 | 1081 |
Multilingual Molmo 2 8b leads
Claude 3 Opus: 41.4 (#207), Molmo 2 8b: 42.7 (#190)
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1258 | 1276 |
| LMArena Chinese | 1248 | — |
| LMArena French | 1275 | — |
| LMArena German | 1258 | — |
| LMArena Japanese | 1204 | — |
| LMArena Korean | 1187 | — |
| LMArena Russian | 1280 | — |
| LMArena Spanish | 1246 | — |
Instruction Following Molmo 2 8b leads
Claude 3 Opus: 64.1 (#228), Molmo 2 8b: 67.0 (#201)
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1248 | 1270 |
| LiveBench Instruction Following | 63.9% | — |
Long Context Not comparable
Claude 3 Opus: 38.2 (#202), Molmo 2 8b: —
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1259 | — |
Writing & Preference Molmo 2 8b leads
Claude 3 Opus: 47.2 (#213), Molmo 2 8b: 49.4 (#191)
| Benchmark | Claude 3 Opus | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1262 | 1288 |
| LMArena Creative Writing | 1235 | — |
| LMArena Multi-Turn | 1275 | — |
| LiveBench Language | 50.4% | — |
Frequently asked questions
Is Claude 3 Opus better than Molmo 2 8b?
Molmo 2 8b is the stronger model overall, scoring 39.1 to 29.5 on the Noometry Index.
How many benchmarks do Claude 3 Opus and Molmo 2 8b share?
5 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Molmo 2 8b has 5.