Model comparison
Nemotron 3.5 Lightning vs Qwen1.5 4b Chat
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 28.8 on the Noometry Index.
Last verified . 13 shared benchmarks.
NVIDIA
Alibaba (Qwen)Summary
- They share 13 benchmarks with published results for both. Nemotron 3.5 Lightning scores higher in 8 categories and Qwen1.5 4b Chat in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Nemotron 3.5 Lightning leads 48.5 to 23.8.
Side by side
| Nemotron 3.5 Lightning | Qwen1.5 4b Chat | |
|---|---|---|
| Provider | NVIDIA | Alibaba (Qwen) |
| Noometry Index | 40.0 | 28.8 |
| Released | 2026-08-11 | — |
| Weights | Open | Open |
| Context window | 262K | — |
| Max output | 262K | — |
| Input $ / M tokens | $0.05 | — |
| Output $ / M tokens | $0.20 | — |
| Results tracked | 18 | 13 |
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Category by category
Coding Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 40.4 (#141), Qwen1.5 4b Chat: 29.1 (#308)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Coding | 1375 | 999 |
Reasoning Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 26.8 (#127), Qwen1.5 4b Chat: 18.5 (#279)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Hard Prompts | 1337 | 976 |
Math Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 37.5 (#155), Qwen1.5 4b Chat: 30.4 (#234)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Math | 1359 | 1026 |
Knowledge Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 37.5 (#154), Qwen1.5 4b Chat: 26.7 (#255)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Expert | 1356 | 980 |
Multilingual Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 44.0 (#180), Qwen1.5 4b Chat: 24.1 (#290)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Non-English | 1295 | 979 |
| LMArena Chinese | 1359 | 1024 |
| LMArena German | 1282 | 902 |
| LMArena Russian | 1253 | 952 |
| LMArena French | 1366 | — |
| LMArena Japanese | 1206 | — |
| LMArena Korean | 1238 | — |
| LMArena Spanish | 1345 | — |
Instruction Following Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 69.6 (#170), Qwen1.5 4b Chat: 49.0 (#300)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Instruction Following | 1318 | 978 |
Long Context Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 39.9 (#165), Qwen1.5 4b Chat: 30.1 (#290)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Longer Query | 1314 | 988 |
Writing & Preference Nemotron 3.5 Lightning leads
Nemotron 3.5 Lightning: 48.5 (#201), Qwen1.5 4b Chat: 23.8 (#309)
| Benchmark | Nemotron 3.5 Lightning | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Text | 1327 | 997 |
| LMArena Creative Writing | 1254 | 969 |
| LMArena Multi-Turn | 1328 | 977 |
| EQ-Bench Creative Writing | 1280 | — |
Frequently asked questions
Is Nemotron 3.5 Lightning better than Qwen1.5 4b Chat?
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 28.8 on the Noometry Index.
Is Nemotron 3.5 Lightning or Qwen1.5 4b Chat better for coding?
Nemotron 3.5 Lightning scores higher on coding benchmarks: 40.4 versus 29.1 in the Noometry coding category.
How many benchmarks do Nemotron 3.5 Lightning and Qwen1.5 4b Chat share?
13 benchmarks have published results for both models. Nemotron 3.5 Lightning has 18 scored results on Noometry and Qwen1.5 4b Chat has 13.