Model comparison
Mercury vs Molmo 2 8b
Molmo 2 8b is the stronger model overall, scoring 39.1 to 37.6 on the Noometry Index.
Last verified . 4 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 4 benchmarks with published results for both. Mercury scores higher in 0 categories and Molmo 2 8b in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Molmo 2 8b leads 25.6 to 17.5.
- Molmo 2 8b has downloadable open weights; the other is API-only.
Side by side
| Mercury | Molmo 2 8b | |
|---|---|---|
| Provider | Inception | Allen Institute for AI (Ai2) |
| Noometry Index | 37.6 | 39.1 |
| Released | — | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 9 | 5 |
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Category by category
Coding Not comparable
Mercury: 38.7 (#170), Molmo 2 8b: —
| Benchmark | Mercury | Molmo 2 8b |
|---|---|---|
| LMArena Coding | 1322 | — |
Reasoning Molmo 2 8b leads
Mercury: 17.5 (#293), Molmo 2 8b: 25.6 (#146)
| Benchmark | Mercury | Molmo 2 8b |
|---|---|---|
| LMArena Hard Prompts | 1285 | 1287 |
| Kagi LLM Benchmark | 21.6% | — |
Multimodal Not comparable
Mercury: —, Molmo 2 8b: 30.2 (#112)
| Benchmark | Mercury | Molmo 2 8b |
|---|---|---|
| LMArena Vision | — | 1081 |
Multilingual Molmo 2 8b leads
Mercury: 41.6 (#206), Molmo 2 8b: 42.7 (#190)
| Benchmark | Mercury | Molmo 2 8b |
|---|---|---|
| LMArena Non-English | 1260 | 1276 |
Instruction Following Molmo 2 8b leads
Mercury: 65.2 (#224), Molmo 2 8b: 67.0 (#201)
| Benchmark | Mercury | Molmo 2 8b |
|---|---|---|
| LMArena Instruction Following | 1239 | 1270 |
Long Context Not comparable
Mercury: 38.4 (#198), Molmo 2 8b: —
| Benchmark | Mercury | Molmo 2 8b |
|---|---|---|
| LMArena Longer Query | 1266 | — |
Writing & Preference Molmo 2 8b leads
Mercury: 46.2 (#221), Molmo 2 8b: 49.4 (#191)
| Benchmark | Mercury | Molmo 2 8b |
|---|---|---|
| LMArena Text | 1282 | 1288 |
| LMArena Creative Writing | 1191 | — |
| LMArena Multi-Turn | 1282 | — |
Frequently asked questions
Is Mercury better than Molmo 2 8b?
Molmo 2 8b is the stronger model overall, scoring 39.1 to 37.6 on the Noometry Index.
How many benchmarks do Mercury and Molmo 2 8b share?
4 benchmarks have published results for both models. Mercury has 9 scored results on Noometry and Molmo 2 8b has 5.