GPT-5.6 Luna vs Kimi K3
For product management work, compared on the PM Index.
- Kimi K3 leads on the PM Index (57.6 vs 52.1).
- GPT-5.6 Luna is cheaper ($2.25 vs $6.00 per 1M tokens).
- GPT-5.6 Luna is faster (199 vs 62 tok/s).
| Metric | GPT-5.6 Luna | Kimi K3 |
|---|---|---|
| PM Index | 52.1 | 57.6 |
| AA Intelligence | 51.2 | 57.1 |
| AA Coding | 71.4 | 76.2 |
| AA Agentic | 45.6 | 50.1 |
| Blended $/1M | $2.25 | $6.00 |
| Output tok/s | 199 | 62 |