Model comparison
Claude Opus 4.1 vs Nemotron 4 340b Instruct
Claude Opus 4.1 is the stronger model overall, scoring 40.8 to 35.3 on the Noometry Index.
Last verified . 17 shared benchmarks.
NVIDIASummary
- They share 17 benchmarks with published results for both. Claude Opus 4.1 scores higher in 7 categories and Nemotron 4 340b Instruct in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Claude Opus 4.1 leads 62.6 to 42.9.
- Nemotron 4 340b Instruct has downloadable open weights; the other is API-only.
Side by side
| Claude Opus 4.1 | Nemotron 4 340b Instruct | |
|---|---|---|
| Provider | Anthropic | NVIDIA |
| Noometry Index | 40.8 | 35.3 |
| Released | 2025-08-05 | 2024-06-14 |
| Weights | Proprietary | Open |
| Context window | 200K | — |
| Max output | 32K | — |
| Input $ / M tokens | $15 | — |
| Output $ / M tokens | $75 | — |
| Results tracked | 48 | 17 |
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Category by category
Coding Claude Opus 4.1 leads
Claude Opus 4.1: 44.3 (#69), Nemotron 4 340b Instruct: 34.6 (#223)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Coding | 1479 | 1209 |
| SWE-bench Verified | 73.3% | — |
| LMArena WebDev | 1390 | — |
| WeirdML | 45.9% | — |
| ALE-Bench | 674.77 | — |
| AlgoTune | 1.34 | — |
Agentic & Tool Use Not comparable
Claude Opus 4.1: 34.8 (#38), Nemotron 4 340b Instruct: —
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| Terminal-Bench | 38% | — |
| GDPval | 43.6% | — |
| Cybench | 42% | — |
| DeepResearch Bench | 48.3% | — |
| LMArena Search | 1148 | — |
| METR Time Horizons | 66.8% | — |
Reasoning Claude Opus 4.1 leads
Claude Opus 4.1: 31.6 (#70), Nemotron 4 340b Instruct: 22.4 (#180)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1443 | 1202 |
| SimpleBench | 60% | — |
| Chess Puzzles | 7% | — |
| EnigmaEval | 7.2% | — |
| EBR-Bench | 7.9% | — |
| Mystery Game Puzzles | 21% | — |
| DTBench | 80% | — |
| LMCA | 37.1% | — |
| Epoch Capabilities Index | 144.11 | — |
| ForecastBench | 62 | — |
Math Nemotron 4 340b Instruct leads
Claude Opus 4.1: 22.0 (#267), Nemotron 4 340b Instruct: 31.7 (#193)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Math | 1430 | 1216 |
| FrontierMath (Tiers 1-3) | 12.6% | — |
| FrontierMath Tier 4 | 2.4% | — |
| OTIS Mock AIME 2024-2025 | 68.9% | — |
| FrontierMath (Feb 2025 set) | 7.2% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Claude Opus 4.1 leads
Claude Opus 4.1: 41.9 (#93), Nemotron 4 340b Instruct: 31.4 (#212)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Expert | 1439 | 1171 |
| GPQA Diamond | 77.3% | — |
| Humanity's Last Exam | 11.5% | — |
| Confabulations | 17.1% | — |
| Vectara Hallucination Rate | 11.8% | — |
Multimodal Not comparable
Claude Opus 4.1: 26.2 (#114), Nemotron 4 340b Instruct: —
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| VPCT | 35% | — |
Multilingual Claude Opus 4.1 leads
Claude Opus 4.1: 52.1 (#90), Nemotron 4 340b Instruct: 38.0 (#228)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Non-English | 1405 | 1206 |
| LMArena Chinese | 1427 | 1214 |
| LMArena French | 1432 | 1196 |
| LMArena German | 1412 | 1192 |
| LMArena Japanese | 1378 | 1128 |
| LMArena Korean | 1381 | 1148 |
| LMArena Russian | 1421 | 1219 |
| LMArena Spanish | 1448 | 1195 |
Instruction Following Claude Opus 4.1 leads
Claude Opus 4.1: 75.8 (#53), Nemotron 4 340b Instruct: 63.3 (#227)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Instruction Following | 1436 | 1203 |
Long Context Claude Opus 4.1 leads
Claude Opus 4.1: 44.5 (#60), Nemotron 4 340b Instruct: 37.1 (#216)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Longer Query | 1455 | 1225 |
Writing & Preference Claude Opus 4.1 leads
Claude Opus 4.1: 62.6 (#70), Nemotron 4 340b Instruct: 42.9 (#229)
| Benchmark | Claude Opus 4.1 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Text | 1419 | 1225 |
| LMArena Creative Writing | 1412 | 1203 |
| LMArena Multi-Turn | 1444 | 1214 |
| Short-Story Creative Writing | 84.7% | — |
Frequently asked questions
Is Claude Opus 4.1 better than Nemotron 4 340b Instruct?
Claude Opus 4.1 is the stronger model overall, scoring 40.8 to 35.3 on the Noometry Index.
Is Claude Opus 4.1 or Nemotron 4 340b Instruct better for coding?
Claude Opus 4.1 scores higher on coding benchmarks: 44.3 versus 34.6 in the Noometry coding category.
How many benchmarks do Claude Opus 4.1 and Nemotron 4 340b Instruct share?
17 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and Nemotron 4 340b Instruct has 17.