# Claude 2.1 vs Nemotron 3.5 Lightning

> Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 25.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-nemotron-3-5-lightning
- Last updated: 2026-10-12
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Nemotron 3.5 Lightning leads 37.5 to 10.2.
- Nemotron 3.5 Lightning has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| Provider | Anthropic | NVIDIA |
| Noometry Index | 25.2 | 40.0 |
| Rank | 345 | 155 |
| Context | — | 262K |
| Input $/M | — | $0.05 |
| Output $/M | — | $0.20 |
| Weights | Proprietary | Open |

## Coding

- Claude 2.1: 26.2 (#327)
- Nemotron 3.5 Lightning: 40.4 (#141)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1375 |

## Reasoning

- Claude 2.1: 21.4 (#221)
- Nemotron 3.5 Lightning: 26.8 (#127)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Hard Prompts | — | 1337 |
| DTBench | 51% | — |
| Epoch Capabilities Index | 119.27 | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 10.2 (#315)
- Nemotron 3.5 Lightning: 37.5 (#155)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | — |
| LMArena Math | — | 1359 |

## Knowledge

- Claude 2.1: 15.4 (#292)
- Nemotron 3.5 Lightning: 37.5 (#154)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| GPQA Diamond | 33% | — |
| LMArena Expert | — | 1356 |
| MMLU | 73.5% | — |

## Multilingual

- Claude 2.1: —
- Nemotron 3.5 Lightning: 44.0 (#180)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Non-English | — | 1295 |
| LMArena Chinese | — | 1359 |
| LMArena French | — | 1366 |
| LMArena German | — | 1282 |
| LMArena Japanese | — | 1206 |
| LMArena Korean | — | 1238 |
| LMArena Russian | — | 1253 |
| LMArena Spanish | — | 1345 |

## Instruction Following

- Claude 2.1: —
- Nemotron 3.5 Lightning: 69.6 (#170)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Instruction Following | — | 1318 |

## Long Context

- Claude 2.1: —
- Nemotron 3.5 Lightning: 39.9 (#165)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Longer Query | — | 1314 |

## Writing & Preference

- Claude 2.1: —
- Nemotron 3.5 Lightning: 48.5 (#201)

| Benchmark | Claude 2.1 | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Text | — | 1327 |
| LMArena Creative Writing | — | 1254 |
| EQ-Bench Creative Writing | — | 1280 |
| LMArena Multi-Turn | — | 1328 |

## FAQ

### Is Claude 2.1 better than Nemotron 3.5 Lightning?

Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 25.2 on the Noometry Index.

### Is Claude 2.1 or Nemotron 3.5 Lightning better for coding?

Nemotron 3.5 Lightning scores higher on coding benchmarks: 40.4 versus 26.2 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and Nemotron 3.5 Lightning share?

0 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Nemotron 3.5 Lightning has 18.