Model comparison
Nemotron 3.5 Lightning vs Step 1o Turbo 202506
Nemotron 3.5 Lightning and Step 1o Turbo 202506 score almost the same on the Noometry Index (40.0 vs 39.7), so choose on price, context window or the category you care about most.
Last verified . 13 shared benchmarks.
NVIDIA
StepFunSummary
- They share 13 benchmarks with published results for both. Nemotron 3.5 Lightning scores higher in 5 categories and Step 1o Turbo 202506 in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 1o Turbo 202506 leads 53.1 to 48.5.
- Nemotron 3.5 Lightning has downloadable open weights; the other is API-only.
Side by side
| Nemotron 3.5 Lightning | Step 1o Turbo 202506 | |
|---|---|---|
| Provider | NVIDIA | StepFun |
| Noometry Index | 40.0 | 39.7 |
| Released | 2026-08-11 | — |
| Weights | Open | Proprietary |
| Context window | 262K | — |
| Max output | 262K | — |
| Input $ / M tokens | $0.05 | — |
| Output $ / M tokens | $0.20 | — |
| Results tracked | 18 | 14 |
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Category by category
Coding Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 40.4 (#141), Step 1o Turbo 202506: 39.2 (#160)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Coding | 1375 | 1339 |
Reasoning Too close to call
Nemotron 3.5 Lightning: 26.8 (#127), Step 1o Turbo 202506: 26.8 (#129)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Hard Prompts | 1337 | 1335 |
Math Too close to call
Nemotron 3.5 Lightning: 37.5 (#155), Step 1o Turbo 202506: 36.6 (#164)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Math | 1359 | 1318 |
Knowledge Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 37.5 (#154), Step 1o Turbo 202506: 36.1 (#176)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Expert | 1356 | 1308 |
Multimodal Not comparable
Nemotron 3.5 Lightning: —, Step 1o Turbo 202506: 36.1 (#80)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Vision | — | 1186 |
Multilingual Step 1o Turbo 202506 leads
Nemotron 3.5 Lightning: 44.0 (#180), Step 1o Turbo 202506: 45.3 (#173)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Non-English | 1295 | 1313 |
| LMArena Chinese | 1359 | 1380 |
| LMArena German | 1282 | 1314 |
| LMArena Russian | 1253 | 1327 |
| LMArena French | 1366 | — |
| LMArena Japanese | 1206 | — |
| LMArena Korean | 1238 | — |
| LMArena Spanish | 1345 | — |
Instruction Following Too close to call
Nemotron 3.5 Lightning: 69.6 (#170), Step 1o Turbo 202506: 69.2 (#176)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Instruction Following | 1318 | 1310 |
Long Context Step 1o Turbo 202506 leads
Nemotron 3.5 Lightning: 39.9 (#165), Step 1o Turbo 202506: 41.0 (#146)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Longer Query | 1314 | 1348 |
Writing & Preference Step 1o Turbo 202506 leads
Nemotron 3.5 Lightning: 48.5 (#201), Step 1o Turbo 202506: 53.1 (#160)
| Benchmark | Nemotron 3.5 Lightning | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Text | 1327 | 1336 |
| LMArena Creative Writing | 1254 | 1307 |
| LMArena Multi-Turn | 1328 | 1340 |
| EQ-Bench Creative Writing | 1280 | — |
Frequently asked questions
Is Nemotron 3.5 Lightning better than Step 1o Turbo 202506?
Nemotron 3.5 Lightning and Step 1o Turbo 202506 score almost the same on the Noometry Index (40.0 vs 39.7), so choose on price, context window or the category you care about most.
Is Nemotron 3.5 Lightning or Step 1o Turbo 202506 better for coding?
Nemotron 3.5 Lightning scores higher on coding benchmarks: 40.4 versus 39.2 in the Noometry coding category.
How many benchmarks do Nemotron 3.5 Lightning and Step 1o Turbo 202506 share?
13 benchmarks have published results for both models. Nemotron 3.5 Lightning has 18 scored results on Noometry and Step 1o Turbo 202506 has 14.