Claude Sonnet 5 vs GPT-5.5
For product management work, compared on the PM Index.
- GPT-5.5 leads on the PM Index (54.8 vs 53.9).
- Claude Sonnet 5 is cheaper ($6.00 vs $11.25 per 1M tokens).
- GPT-5.5 is faster (79 vs 79 tok/s).
| Metric | Claude Sonnet 5 | GPT-5.5 |
|---|---|---|
| PM Index | 53.9 | 54.8 |
| AA Intelligence | 53.4 | 54.8 |
| AA Coding | 71.5 | 74.9 |
| AA Agentic | 46.7 | 44.9 |
| Blended $/1M | $6.00 | $11.25 |
| Output tok/s | 79 | 79 |