Model comparison
Molmo 2 8b vs Nemotron 3 Ultra
Nemotron 3 Ultra is the stronger model overall, scoring 44.7 to 38.7 on the Noometry Index.
Last verified . 4 shared benchmarks.
Allen Institute for AI (Ai2)
NVIDIASummary
- They share 4 benchmarks with published results for both. Molmo 2 8b scores higher in 0 categories and Nemotron 3 Ultra in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Nemotron 3 Ultra leads 66.3 to 49.5.
Side by side
| Molmo 2 8b | Nemotron 3 Ultra | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | NVIDIA |
| Noometry Index | 38.7 | 44.7 |
| Released | — | 2026-06-04 |
| Weights | Open | Open |
| Context window | — | 262K |
| Max output | — | 128K |
| Input $ / M tokens | — | $0.60 |
| Output $ / M tokens | — | $2.40 |
| Results tracked | 5 | 29 |
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Category by category
Coding Not comparable
Molmo 2 8b: —, Nemotron 3 Ultra: 37.7 (#174)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| FrontierCode | — | 13.6% |
| SciCode | — | 40.3% |
| WeirdML | — | 43.5% |
| LMArena Coding | — | 1468 |
Reasoning Nemotron 3 Ultra leads
Molmo 2 8b: 24.5 (#146), Nemotron 3 Ultra: 30.3 (#78)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| LMArena Hard Prompts | 1288 | 1452 |
| CritPt | — | 3.1% |
| Chess Puzzles | — | 12% |
| Mystery Game Puzzles | — | 20% |
| DTBench | — | 90.1% |
| LMCA | — | 36.9% |
| Epoch Capabilities Index | — | 146.2 |
Math Not comparable
Molmo 2 8b: —, Nemotron 3 Ultra: 34.4 (#160)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 86.7% |
| ProofBench | — | 2% |
| LMArena Math | — | 1456 |
Knowledge Not comparable
Molmo 2 8b: —, Nemotron 3 Ultra: 52.5 (#56)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| GPQA Diamond | — | 85.4% |
| LMArena Expert | — | 1472 |
Multimodal Not comparable
Molmo 2 8b: 29.5 (#106), Nemotron 3 Ultra: —
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| LMArena Vision | 1081 | — |
Multilingual Nemotron 3 Ultra leads
Molmo 2 8b: 42.8 (#186), Nemotron 3 Ultra: 53.7 (#61)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| LMArena Non-English | 1275 | 1427 |
| LMArena Chinese | — | 1498 |
| LMArena French | — | 1475 |
| LMArena German | — | 1471 |
| LMArena Korean | — | 1387 |
| LMArena Russian | — | 1415 |
| LMArena Spanish | — | 1452 |
Instruction Following Nemotron 3 Ultra leads
Molmo 2 8b: 67.2 (#196), Nemotron 3 Ultra: 74.9 (#84)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| LMArena Instruction Following | 1270 | 1417 |
Long Context Not comparable
Molmo 2 8b: —, Nemotron 3 Ultra: 43.9 (#77)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| LMArena Longer Query | — | 1437 |
Writing & Preference Nemotron 3 Ultra leads
Molmo 2 8b: 49.5 (#187), Nemotron 3 Ultra: 66.3 (#35)
| Benchmark | Molmo 2 8b | Nemotron 3 Ultra |
|---|---|---|
| LMArena Text | 1288 | 1444 |
| LMArena Creative Writing | — | 1392 |
| EQ-Bench Creative Writing | — | 1692 |
| LMArena Multi-Turn | — | 1412 |
Frequently asked questions
Is Molmo 2 8b better than Nemotron 3 Ultra?
Nemotron 3 Ultra is the stronger model overall, scoring 44.7 to 38.7 on the Noometry Index.
How many benchmarks do Molmo 2 8b and Nemotron 3 Ultra share?
4 benchmarks have published results for both models. Molmo 2 8b has 5 scored results on Noometry and Nemotron 3 Ultra has 29.