GPT-5.4 vs Muse Spark 1.1
For product management work, compared on the PM Index.
- GPT-5.4 leads on the PM Index (51.3 vs 50.1).
- Muse Spark 1.1 is cheaper ($2.00 vs $5.63 per 1M tokens).
- GPT-5.4 is faster (149 vs 118 tok/s).
| Metric | GPT-5.4 | Muse Spark 1.1 |
|---|---|---|
| PM Index | 51.3 | 50.1 |
| AA Intelligence | 51.4 | 50.6 |
| AA Coding | 71.1 | 71.3 |
| AA Agentic | 41.1 | 37.5 |
| Blended $/1M | $5.63 | $2.00 |
| Output tok/s | 149 | 118 |