GPT-5.6 Terra vs Grok 4.5
For product management work, compared on the PM Index.
- GPT-5.6 Terra leads on the PM Index (55.7 vs 54.0).
- Grok 4.5 is cheaper ($3.00 vs $5.63 per 1M tokens).
- GPT-5.6 Terra is faster (144 vs 90 tok/s).
| Metric | GPT-5.6 Terra | Grok 4.5 |
|---|---|---|
| PM Index | 55.7 | 54.0 |
| AA Intelligence | 55.0 | 53.8 |
| AA Coding | 76.7 | 72.4 |
| AA Agentic | 47.4 | 45.7 |
| Blended $/1M | $5.63 | $3.00 |
| Output tok/s | 144 | 90 |