Grok 4.1 Fast vs Step 3.5 Flash
For product management work, compared on the PM Index.
- Grok 4.1 Fast leads on the PM Index (40.0 vs 40.0).
| Metric | Grok 4.1 Fast | Step 3.5 Flash |
|---|---|---|
| PM Index | 40.0 | 40.0 |
| AA Intelligence | 38.6 | 37.8 |
| AA Coding | 30.9 | 31.6 |
| AA Agentic | 49.3 | 52.0 |
| Blended $/1M | — | $0.15 |
| Output tok/s | — | 179 |