Model comparison
Amazon Nova Experimental Chat 10 20 vs Muse Spark
Muse Spark is the stronger model overall, scoring 50.3 to 41.5 on the Noometry Index.
Last verified . 16 shared benchmarks.
MetaSummary
- They share 16 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 0 categories and Muse Spark in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Muse Spark leads 65.7 to 37.8.
Side by side
| Amazon Nova Experimental Chat 10 20 | Muse Spark | |
|---|---|---|
| Provider | Amazon | Meta |
| Noometry Index | 41.5 | 50.3 |
| Released | — | 2026-04-08 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 17 | 27 |
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Category by category
Coding Muse Spark leads
Amazon Nova Experimental Chat 10 20: 41.0 (#123), Muse Spark: 45.6 (#65)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Coding | 1413 | 1482 |
| SciCode | — | 51.5% |
Reasoning Muse Spark leads
Amazon Nova Experimental Chat 10 20: 27.3 (#110), Muse Spark: 34.9 (#61)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1475 |
| CritPt | — | 11.3% |
| Epoch Capabilities Index | — | 152.09 |
Math Muse Spark leads
Amazon Nova Experimental Chat 10 20: 36.2 (#121), Muse Spark: 46.8 (#57)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Math | 1425 | 1455 |
| OTIS Mock AIME 2024-2025 | — | 88.9% |
| ProofBench | — | 17% |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Muse Spark leads
Amazon Nova Experimental Chat 10 20: 37.8 (#142), Muse Spark: 65.7 (#12)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Expert | 1385 | 1458 |
| GPQA Diamond | — | 89.8% |
| Humanity's Last Exam | — | 40.6% |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 20: —, Muse Spark: 42.7 (#23)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Vision | — | 1306 |
| LMArena Document | — | 1444 |
Multilingual Muse Spark leads
Amazon Nova Experimental Chat 10 20: 49.7 (#127), Muse Spark: 56.3 (#23)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Non-English | 1372 | 1464 |
| LMArena Chinese | 1405 | 1507 |
| LMArena French | 1426 | 1497 |
| LMArena German | 1391 | 1497 |
| LMArena Korean | 1327 | 1457 |
| LMArena Russian | 1371 | 1467 |
| LMArena Spanish | 1381 | 1471 |
| LMArena Japanese | 1355 | — |
Instruction Following Muse Spark leads
Amazon Nova Experimental Chat 10 20: 72.3 (#136), Muse Spark: 76.1 (#47)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Instruction Following | 1365 | 1443 |
Long Context Muse Spark leads
Amazon Nova Experimental Chat 10 20: 41.7 (#128), Muse Spark: 44.4 (#65)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Longer Query | 1370 | 1451 |
Writing & Preference Muse Spark leads
Amazon Nova Experimental Chat 10 20: 56.9 (#131), Muse Spark: 66.2 (#37)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Muse Spark |
|---|---|---|
| LMArena Text | 1394 | 1474 |
| LMArena Creative Writing | 1318 | 1460 |
| LMArena Multi-Turn | 1364 | 1477 |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Muse Spark?
Muse Spark is the stronger model overall, scoring 50.3 to 41.5 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Muse Spark better for coding?
Muse Spark scores higher on coding benchmarks: 45.6 versus 41.0 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Muse Spark share?
16 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Muse Spark has 27.