GPT-5.5 vs Muse Spark
For product management work, compared on the PM Index.
- GPT-5.5 leads on the PM Index (59.1 vs 47.3).
| Metric | GPT-5.5 | Muse Spark |
|---|---|---|
| PM Index | 59.1 | 47.3 |
| AA Intelligence | 54.8 | 43.1 |
| AA Coding | 59.1 | 47.5 |
| AA Agentic | 74.1 | 62.0 |
| Blended $/1M | $11.25 | — |
| Output tok/s | 65 | — |