Model comparison
Muse Spark vs Solar Pro 3
Muse Spark has enough public results to be ranked (#41); Solar Pro 3 does not yet, so treat this comparison as directional.
Last verified . 2 shared benchmarks.
Meta
UpstageSummary
- They share 2 benchmarks with published results for both. Muse Spark scores higher in 2 categories and Solar Pro 3 in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark leads 34.9 to 21.7.
- The biggest single-benchmark swing is SciCode: 51.5% for Muse Spark and 24.7% for Solar Pro 3.
Side by side
| Muse Spark | Solar Pro 3 | |
|---|---|---|
| Provider | Meta | Upstage |
| Noometry Index | 50.3 | 33.3 |
| Released | 2026-04-08 | 2026-01 |
| Weights | Proprietary | Proprietary |
| Context window | — | 131K |
| Max output | — | 8K |
| Input $ / M tokens | — | $0.25 |
| Output $ / M tokens | — | $0.25 |
| Results tracked | 27 | 2 |
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Category by category
Coding Muse Spark leads
Muse Spark: 45.6 (#65), Solar Pro 3: 34.2
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| SciCode | 51.5% | 24.7% |
| LMArena Coding | 1482 | — |
Reasoning Muse Spark leads
Muse Spark: 34.9 (#61), Solar Pro 3: 21.7
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| CritPt | 11.3% | 0% |
| LMArena Hard Prompts | 1475 | — |
| Epoch Capabilities Index | 152.09 | — |
Math Not comparable
Muse Spark: 46.8 (#57), Solar Pro 3: —
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 88.9% | — |
| ProofBench | 17% | — |
| LMArena Math | 1455 | — |
| FrontierMath (Feb 2025 set) | 39% | — |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge Not comparable
Muse Spark: 65.7 (#12), Solar Pro 3: —
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| GPQA Diamond | 89.8% | — |
| Humanity's Last Exam | 40.6% | — |
| LMArena Expert | 1458 | — |
Multimodal Not comparable
Muse Spark: 42.7 (#23), Solar Pro 3: —
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| LMArena Vision | 1306 | — |
| LMArena Document | 1444 | — |
Multilingual Not comparable
Muse Spark: 56.3 (#23), Solar Pro 3: —
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| LMArena Non-English | 1464 | — |
| LMArena Chinese | 1507 | — |
| LMArena French | 1497 | — |
| LMArena German | 1497 | — |
| LMArena Korean | 1457 | — |
| LMArena Russian | 1467 | — |
| LMArena Spanish | 1471 | — |
Instruction Following Not comparable
Muse Spark: 76.1 (#47), Solar Pro 3: —
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| LMArena Instruction Following | 1443 | — |
Long Context Not comparable
Muse Spark: 44.4 (#65), Solar Pro 3: —
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| LMArena Longer Query | 1451 | — |
Writing & Preference Not comparable
Muse Spark: 66.2 (#37), Solar Pro 3: —
| Benchmark | Muse Spark | Solar Pro 3 |
|---|---|---|
| LMArena Text | 1474 | — |
| LMArena Creative Writing | 1460 | — |
| LMArena Multi-Turn | 1477 | — |
Frequently asked questions
Is Muse Spark better than Solar Pro 3?
Muse Spark has enough public results to be ranked (#41); Solar Pro 3 does not yet, so treat this comparison as directional.
Is Muse Spark or Solar Pro 3 better for coding?
Muse Spark scores higher on coding benchmarks: 45.6 versus 34.2 in the Noometry coding category.
How many benchmarks do Muse Spark and Solar Pro 3 share?
2 benchmarks have published results for both models. Muse Spark has 27 scored results on Noometry and Solar Pro 3 has 2.