GPT-5.5 vs Muse Spark 1.1
For product management work, compared on the PM Index.
- GPT-5.5 leads on the PM Index (54.8 vs 50.1).
- Muse Spark 1.1 is cheaper ($2.00 vs $11.25 per 1M tokens).
- Muse Spark 1.1 is faster (118 vs 66 tok/s).
| Metric | GPT-5.5 | Muse Spark 1.1 |
|---|---|---|
| PM Index | 54.8 | 50.1 |
| AA Intelligence | 54.8 | 50.6 |
| AA Coding | 74.9 | 71.3 |
| AA Agentic | 44.9 | 37.5 |
| Blended $/1M | $11.25 | $2.00 |
| Output tok/s | 66 | 118 |