Claude Opus 5 vs GPT-5.6 Luna
For product management work, compared on the PM Index.
- Claude Opus 5 leads on the PM Index (61.4 vs 52.1).
- GPT-5.6 Luna is cheaper ($2.25 vs $10.00 per 1M tokens).
- GPT-5.6 Luna is faster (188 vs 56 tok/s).
| Metric | Claude Opus 5 | GPT-5.6 Luna |
|---|---|---|
| PM Index | 61.4 | 52.1 |
| AA Intelligence | 60.7 | 51.2 |
| AA Coding | 78.0 | 71.4 |
| AA Agentic | 55.3 | 45.6 |
| Blended $/1M | $10.00 | $2.25 |
| Output tok/s | 56 | 188 |