Claude Fable 5 vs Grok 4.3
For product management work, compared on the PM Index.
- Claude Fable 5 leads on the PM Index (67.8 vs 54.5).
- Grok 4.3 is cheaper ($1.56 vs $20.00 per 1M tokens).
| Metric | Claude Fable 5 | Grok 4.3 |
|---|---|---|
| PM Index | 67.8 | 54.5 |
| AA Intelligence | 64.9 | 53.2 |
| AA Coding | 62.0 | 41.0 |
| AA Agentic | 80.6 | 65.9 |
| Blended $/1M | $20.00 | $1.56 |
| Output tok/s | — | 169 |