# Nemotron 3.5 Lightning vs Step 3.7 Flash

> Nemotron 3.5 Lightning is the stronger model overall, scoring 39.3 to 36.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/nemotron-3-5-lightning-vs-step-3-7-flash
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Step 3.7 Flash leads 40.9 to 34.7.
- Nemotron 3.5 Lightning is cheaper at $0.06 / $0.16 per million input/output tokens, against $0.18 / $1.11 for Step 3.7 Flash.
- Nemotron 3.5 Lightning accepts more context: 262K tokens versus 256K.

## Snapshot

| | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| Provider | NVIDIA | StepFun |
| Noometry Index | 39.3 | 36.5 |
| Rank | 156 | 207 |
| Context | 262K | 256K |
| Input $/M | $0.06 | $0.18 |
| Output $/M | $0.16 | $1.11 |
| Weights | Open | Open |

## Coding

- Nemotron 3.5 Lightning: 39.6 (#143)
- Step 3.7 Flash: 39.4 (#147)

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| SciCode | — | 40% |
| LMArena Coding | 1370 | — |
| ALE-Bench | — | 694.12 |

## Reasoning

- Nemotron 3.5 Lightning: 25.7 (#128)
- Step 3.7 Flash: 20.9 (#211)

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| NYT Connections (extended) | — | 39.7% |
| CritPt | — | 2.3% |
| LMArena Hard Prompts | 1335 | — |

## Math

- Nemotron 3.5 Lightning: 34.7 (#156)
- Step 3.7 Flash: 40.9 (#74)

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1355 | — |

## Knowledge

- Nemotron 3.5 Lightning: 36.9 (#154)
- Step 3.7 Flash: —

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| LMArena Expert | 1354 | — |

## Multilingual

- Nemotron 3.5 Lightning: 44.0 (#175)
- Step 3.7 Flash: —

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1292 | — |
| LMArena Chinese | 1356 | — |
| LMArena French | 1369 | — |
| LMArena German | 1280 | — |
| LMArena Japanese | 1213 | — |
| LMArena Korean | 1233 | — |
| LMArena Russian | 1257 | — |
| LMArena Spanish | 1321 | — |

## Instruction Following

- Nemotron 3.5 Lightning: 69.8 (#166)
- Step 3.7 Flash: —

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1317 | — |

## Long Context

- Nemotron 3.5 Lightning: 39.9 (#160)
- Step 3.7 Flash: —

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1312 | — |

## Writing & Preference

- Nemotron 3.5 Lightning: 48.5 (#198)
- Step 3.7 Flash: —

| Benchmark | Nemotron 3.5 Lightning | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1324 | — |
| LMArena Creative Writing | 1254 | — |
| EQ-Bench Creative Writing | 1280 | — |
| LMArena Multi-Turn | 1327 | — |

## FAQ

### Is Nemotron 3.5 Lightning better than Step 3.7 Flash?

Nemotron 3.5 Lightning is the stronger model overall, scoring 39.3 to 36.5 on the Noometry Index.

### Which is cheaper, Nemotron 3.5 Lightning or Step 3.7 Flash?

Nemotron 3.5 Lightning is cheaper. It lists at $0.06 per million input tokens and $0.16 per million output tokens; Step 3.7 Flash lists at $0.18 and $1.11.

### Is Nemotron 3.5 Lightning or Step 3.7 Flash better for coding?

They score almost the same on coding (39.6 vs 39.4); test both on your own repository before choosing.

### Which has the bigger context window?

Nemotron 3.5 Lightning does, with 262K tokens against 256K.

### How many benchmarks do Nemotron 3.5 Lightning and Step 3.7 Flash share?

0 benchmarks have published results for both models. Nemotron 3.5 Lightning has 18 scored results on Noometry and Step 3.7 Flash has 5.