Claude Fable 5 vs Claude Opus 4.8
For product management work, compared on the PM Index.
- Claude Fable 5 leads on the PM Index (60.1 vs 55.9).
- Claude Opus 4.8 is cheaper ($10.00 vs $20.00 per 1M tokens).
| Metric | Claude Fable 5 | Claude Opus 4.8 |
|---|---|---|
| PM Index | 60.1 | 55.9 |
| AA Intelligence | 59.9 | 55.7 |
| AA Coding | 76.5 | 74.3 |
| AA Agentic | 52.8 | 47.2 |
| Blended $/1M | $20.00 | $10.00 |
| Output tok/s | — | 64 |