Model comparison
Amazon Nova Experimental Chat 10 09 vs Muse Spark 1.2
Muse Spark 1.2 is the stronger model overall, scoring 49.8 to 41.4 on the Noometry Index.
Last verified . 9 shared benchmarks.
MetaSummary
- They share 9 benchmarks with published results for both. Amazon Nova Experimental Chat 10 09 scores higher in 0 categories and Muse Spark 1.2 in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.2 leads 50.4 to 26.2.
Side by side
| Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 | |
|---|---|---|
| Provider | Amazon | Meta |
| Noometry Index | 41.4 | 49.8 |
| Released | — | 2026-08-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $4.25 |
| Results tracked | 9 | 28 |
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Category by category
Coding Muse Spark 1.2 leads
Amazon Nova Experimental Chat 10 09: 39.6 (#142), Muse Spark 1.2: 48.6 (#49)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| LMArena Coding | 1371 | 1497 |
| DeepSWE | — | 54.9% |
| LMArena WebDev | — | 1532 |
| FrontierSWE | — | 12% |
| SciCode | — | 56.4% |
| WeirdML | — | 60.3% |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 10 09: —, Muse Spark 1.2: 29.5 (#77)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| APEX-Agents | — | 36.4% |
| GDP.pdf | — | 16% |
Reasoning Muse Spark 1.2 leads
Amazon Nova Experimental Chat 10 09: 26.2 (#122), Muse Spark 1.2: 50.4 (#32)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1490 |
| SimpleBench | — | 74.5% |
| NYT Connections (extended) | — | 79.2% |
| CritPt | — | 17.7% |
| DTBench | — | 94.7% |
| LMCA | — | 48.4% |
| Epoch Capabilities Index | — | 155.18 |
Math Not comparable
Amazon Nova Experimental Chat 10 09: —, Muse Spark 1.2: 43.8 (#68)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| ProofBench | — | 43% |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 09: —, Muse Spark 1.2: 53.9 (#49)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| SimpleQA Verified | — | 60.3% |
| LMArena Expert | — | 1485 |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 09: —, Muse Spark 1.2: 42.6 (#24)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| LMArena Vision | — | 1304 |
Multilingual Muse Spark 1.2 leads
Amazon Nova Experimental Chat 10 09: 47.5 (#145), Muse Spark 1.2: 57.4 (#10)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| LMArena Non-English | 1341 | 1479 |
| LMArena Chinese | 1345 | 1519 |
| LMArena Russian | — | 1494 |
Instruction Following Muse Spark 1.2 leads
Amazon Nova Experimental Chat 10 09: 69.7 (#167), Muse Spark 1.2: 77.1 (#30)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| LMArena Instruction Following | 1316 | 1466 |
Long Context Muse Spark 1.2 leads
Amazon Nova Experimental Chat 10 09: 40.6 (#146), Muse Spark 1.2: 45.4 (#35)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| LMArena Longer Query | 1334 | 1483 |
Writing & Preference Muse Spark 1.2 leads
Amazon Nova Experimental Chat 10 09: 55.0 (#144), Muse Spark 1.2: 72.6 (#14)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Muse Spark 1.2 |
|---|---|---|
| LMArena Text | 1365 | 1486 |
| LMArena Creative Writing | 1307 | 1444 |
| LMArena Multi-Turn | 1354 | 1504 |
| EQ-Bench Creative Writing | — | 1840 |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 09 better than Muse Spark 1.2?
Muse Spark 1.2 is the stronger model overall, scoring 49.8 to 41.4 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 09 or Muse Spark 1.2 better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 48.6 versus 39.6 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 09 and Muse Spark 1.2 share?
9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and Muse Spark 1.2 has 28.