GPT-5.1 (high) vs Grok 4.1 Fast (Reasoning)
For product management work, compared on the PM Index.
- GPT-5.1 (high) leads on the PM Index (48.1 vs 40.0).
| Metric | GPT-5.1 (high) | Grok 4.1 Fast (Reasoning) |
|---|---|---|
| PM Index | 48.1 | 40.0 |
| AA Intelligence | 47.7 | 38.6 |
| AA Coding | 44.7 | 30.9 |
| AA Agentic | 51.3 | 49.3 |
| Blended $/1M | $3.44 | — |
| Output tok/s | 139 | — |