Grok 4.1 Fast vs Step 3.5 Flash 2603
For product management work, compared on the PM Index.
- Step 3.5 Flash 2603 leads on the PM Index (40.1 vs 40.0).
| Metric | Grok 4.1 Fast | Step 3.5 Flash 2603 |
|---|---|---|
| PM Index | 40.0 | 40.1 |
| AA Intelligence | 38.6 | 38.5 |
| AA Coding | 30.9 | 34.6 |
| AA Agentic | 49.3 | 48.2 |
| Blended $/1M | — | $0.15 |
| Output tok/s | — | 177 |