GPT-5.6 Luna vs Grok 4.5
For product management work, compared on the PM Index.
- Grok 4.5 leads on the PM Index (54.0 vs 52.1).
- GPT-5.6 Luna is cheaper ($2.25 vs $3.00 per 1M tokens).
- GPT-5.6 Luna is faster (204 vs 90 tok/s).
| Metric | GPT-5.6 Luna | Grok 4.5 |
|---|---|---|
| PM Index | 52.1 | 54.0 |
| AA Intelligence | 51.2 | 53.8 |
| AA Coding | 71.4 | 72.4 |
| AA Agentic | 45.6 | 45.7 |
| Blended $/1M | $2.25 | $3.00 |
| Output tok/s | 204 | 90 |