Model comparison
Muse Spark vs Nemotron 3.5 Lightning
Muse Spark is the stronger model overall, scoring 50.3 to 39.3 on the Noometry Index.
Last verified . 16 shared benchmarks.
Meta
NVIDIASummary
- They share 16 benchmarks with published results for both. Muse Spark scores higher in 8 categories and Nemotron 3.5 Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Muse Spark leads 65.7 to 36.9.
- Nemotron 3.5 Lightning has downloadable open weights; the other is API-only.
Side by side
| Muse Spark | Nemotron 3.5 Lightning | |
|---|---|---|
| Provider | Meta | NVIDIA |
| Noometry Index | 50.3 | 39.3 |
| Released | 2026-04-08 | 2026-08-11 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 262K |
| Input $ / M tokens | — | $0.06 |
| Output $ / M tokens | — | $0.16 |
| Results tracked | 27 | 18 |
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Category by category
Coding Muse Spark leads
Muse Spark: 45.6 (#65), Nemotron 3.5 Lightning: 39.6 (#143)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Coding | 1482 | 1370 |
| SciCode | 51.5% | — |
Reasoning Muse Spark leads
Muse Spark: 34.9 (#61), Nemotron 3.5 Lightning: 25.7 (#128)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Hard Prompts | 1475 | 1335 |
| CritPt | 11.3% | — |
| Epoch Capabilities Index | 152.09 | — |
Math Muse Spark leads
Muse Spark: 46.8 (#57), Nemotron 3.5 Lightning: 34.7 (#156)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Math | 1455 | 1355 |
| OTIS Mock AIME 2024-2025 | 88.9% | — |
| ProofBench | 17% | — |
| FrontierMath (Feb 2025 set) | 39% | — |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge Muse Spark leads
Muse Spark: 65.7 (#12), Nemotron 3.5 Lightning: 36.9 (#154)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Expert | 1458 | 1354 |
| GPQA Diamond | 89.8% | — |
| Humanity's Last Exam | 40.6% | — |
Multimodal Not comparable
Muse Spark: 42.7 (#23), Nemotron 3.5 Lightning: —
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Vision | 1306 | — |
| LMArena Document | 1444 | — |
Multilingual Muse Spark leads
Muse Spark: 56.3 (#23), Nemotron 3.5 Lightning: 44.0 (#175)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Non-English | 1464 | 1292 |
| LMArena Chinese | 1507 | 1356 |
| LMArena French | 1497 | 1369 |
| LMArena German | 1497 | 1280 |
| LMArena Korean | 1457 | 1233 |
| LMArena Russian | 1467 | 1257 |
| LMArena Spanish | 1471 | 1321 |
| LMArena Japanese | — | 1213 |
Instruction Following Muse Spark leads
Muse Spark: 76.1 (#47), Nemotron 3.5 Lightning: 69.8 (#166)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Instruction Following | 1443 | 1317 |
Long Context Muse Spark leads
Muse Spark: 44.4 (#65), Nemotron 3.5 Lightning: 39.9 (#160)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Longer Query | 1451 | 1312 |
Writing & Preference Muse Spark leads
Muse Spark: 66.2 (#37), Nemotron 3.5 Lightning: 48.5 (#198)
| Benchmark | Muse Spark | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Text | 1474 | 1324 |
| LMArena Creative Writing | 1460 | 1254 |
| LMArena Multi-Turn | 1477 | 1327 |
| EQ-Bench Creative Writing | — | 1280 |
Frequently asked questions
Is Muse Spark better than Nemotron 3.5 Lightning?
Muse Spark is the stronger model overall, scoring 50.3 to 39.3 on the Noometry Index.
Is Muse Spark or Nemotron 3.5 Lightning better for coding?
Muse Spark scores higher on coding benchmarks: 45.6 versus 39.6 in the Noometry coding category.
How many benchmarks do Muse Spark and Nemotron 3.5 Lightning share?
16 benchmarks have published results for both models. Muse Spark has 27 scored results on Noometry and Nemotron 3.5 Lightning has 18.