Model comparison
Claude 2.1 vs Nemotron 3 Ultra
Nemotron 3 Ultra is the stronger model overall, scoring 44.7 to 24.9 on the Noometry Index.
Last verified . 5 shared benchmarks.
NVIDIASummary
- They share 5 benchmarks with published results for both. Claude 2.1 scores higher in 0 categories and Nemotron 3 Ultra in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Nemotron 3 Ultra leads 52.5 to 15.5.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.9% for Claude 2.1 and 86.7% for Nemotron 3 Ultra.
- Nemotron 3 Ultra has downloadable open weights; the other is API-only.
Side by side
| Claude 2.1 | Nemotron 3 Ultra | |
|---|---|---|
| Provider | Anthropic | NVIDIA |
| Noometry Index | 24.9 | 44.7 |
| Released | 2023-11-21 | 2026-06-04 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 128K |
| Input $ / M tokens | — | $0.60 |
| Output $ / M tokens | — | $2.40 |
| Results tracked | 7 | 29 |
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Category by category
Coding Nemotron 3 Ultra leads
Claude 2.1: 25.8 (#322), Nemotron 3 Ultra: 37.7 (#174)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| WeirdML | 7.1% | 43.5% |
| FrontierCode | — | 13.6% |
| SciCode | — | 40.3% |
| LMArena Coding | — | 1468 |
Reasoning Nemotron 3 Ultra leads
Claude 2.1: 20.6 (#216), Nemotron 3 Ultra: 30.3 (#78)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| DTBench | 51% | 90.1% |
| Epoch Capabilities Index | 119.22 | 146.2 |
| CritPt | — | 3.1% |
| Chess Puzzles | — | 12% |
| LMArena Hard Prompts | — | 1452 |
| Mystery Game Puzzles | — | 20% |
| LMCA | — | 36.9% |
| ForecastBench | 54.2 | — |
Math Nemotron 3 Ultra leads
Claude 2.1: 9.6 (#309), Nemotron 3 Ultra: 34.4 (#160)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | 86.7% |
| ProofBench | — | 2% |
| LMArena Math | — | 1456 |
Knowledge Nemotron 3 Ultra leads
Claude 2.1: 15.5 (#287), Nemotron 3 Ultra: 52.5 (#56)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| GPQA Diamond | 33% | 85.4% |
| LMArena Expert | — | 1472 |
| MMLU | 73.5% | — |
Multilingual Not comparable
Claude 2.1: —, Nemotron 3 Ultra: 53.7 (#61)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Non-English | — | 1427 |
| LMArena Chinese | — | 1498 |
| LMArena French | — | 1475 |
| LMArena German | — | 1471 |
| LMArena Korean | — | 1387 |
| LMArena Russian | — | 1415 |
| LMArena Spanish | — | 1452 |
Instruction Following Not comparable
Claude 2.1: —, Nemotron 3 Ultra: 74.9 (#84)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Instruction Following | — | 1417 |
Long Context Not comparable
Claude 2.1: —, Nemotron 3 Ultra: 43.9 (#77)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Longer Query | — | 1437 |
Writing & Preference Not comparable
Claude 2.1: —, Nemotron 3 Ultra: 66.3 (#35)
| Benchmark | Claude 2.1 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Text | — | 1444 |
| LMArena Creative Writing | — | 1392 |
| EQ-Bench Creative Writing | — | 1692 |
| LMArena Multi-Turn | — | 1412 |
Frequently asked questions
Is Claude 2.1 better than Nemotron 3 Ultra?
Nemotron 3 Ultra is the stronger model overall, scoring 44.7 to 24.9 on the Noometry Index.
Is Claude 2.1 or Nemotron 3 Ultra better for coding?
Nemotron 3 Ultra scores higher on coding benchmarks: 37.7 versus 25.8 in the Noometry coding category.
How many benchmarks do Claude 2.1 and Nemotron 3 Ultra share?
5 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Nemotron 3 Ultra has 29.