Model comparison
Nemotron 3.5 Lightning vs o1-pro
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
NVIDIASummary
- The widest gap is in knowledge, where Nemotron 3.5 Lightning leads 37.5 to 29.7.
- Nemotron 3.5 Lightning is cheaper at $0.05 / $0.20 per million input/output tokens, against $150 / $600 for o1-pro.
- Nemotron 3.5 Lightning accepts more context: 262K tokens versus 200K.
- Nemotron 3.5 Lightning has downloadable open weights; the other is API-only.
Side by side
| Nemotron 3.5 Lightning | o1-pro | |
|---|---|---|
| Provider | NVIDIA | OpenAI |
| Noometry Index | 40.0 | 31.5 |
| Released | 2026-08-11 | 2025-03-19 |
| Weights | Open | Proprietary |
| Context window | 262K | 200K |
| Max output | 262K | 100K |
| Input $ / M tokens | $0.05 | $150 |
| Output $ / M tokens | $0.20 | $600 |
| Results tracked | 18 | 3 |
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Category by category
Coding Not comparable
Nemotron 3.5 Lightning: 40.4 (#141), o1-pro: —
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| LMArena Coding | 1375 | — |
Reasoning Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 26.8 (#127), o1-pro: 20.4 (#239)
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| ARC-AGI-1 | — | 23.3% |
| EnigmaEval | — | 6.1% |
| LMArena Hard Prompts | 1337 | — |
Math Not comparable
Nemotron 3.5 Lightning: 37.5 (#155), o1-pro: —
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| LMArena Math | 1359 | — |
Knowledge Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 37.5 (#154), o1-pro: 29.7 (#234)
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| Humanity's Last Exam | — | 8.1% |
| LMArena Expert | 1356 | — |
Multilingual Not comparable
Nemotron 3.5 Lightning: 44.0 (#180), o1-pro: —
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| 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 Not comparable
Nemotron 3.5 Lightning: 69.6 (#170), o1-pro: —
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| LMArena Instruction Following | 1318 | — |
Long Context Not comparable
Nemotron 3.5 Lightning: 39.9 (#165), o1-pro: —
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| LMArena Longer Query | 1314 | — |
Writing & Preference Not comparable
Nemotron 3.5 Lightning: 48.5 (#201), o1-pro: —
| Benchmark | Nemotron 3.5 Lightning | o1-pro |
|---|---|---|
| LMArena Text | 1327 | — |
| LMArena Creative Writing | 1254 | — |
| EQ-Bench Creative Writing | 1280 | — |
| LMArena Multi-Turn | 1328 | — |
Frequently asked questions
Is Nemotron 3.5 Lightning better than o1-pro?
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 31.5 on the Noometry Index.
Which is cheaper, Nemotron 3.5 Lightning or o1-pro?
Nemotron 3.5 Lightning is cheaper. It lists at $0.05 per million input tokens and $0.20 per million output tokens; o1-pro lists at $150 and $600.
Which has the bigger context window?
Nemotron 3.5 Lightning does, with 262K tokens against 200K.
How many benchmarks do Nemotron 3.5 Lightning and o1-pro share?
0 benchmarks have published results for both models. Nemotron 3.5 Lightning has 18 scored results on Noometry and o1-pro has 3.