Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | o1 | Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) |
|---|---|---|
| Input ($/M tokens) | $15 | $10 |
| Output ($/M tokens) | $60 | $50 |
Data from Artificial Analysis API — 12 benchmarks
Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) is cheaper overall. Its blended price (3:1 input/output ratio) is $20.00/M tokens vs $26.25/M for o1.
Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) wins 6 out of 12 benchmarks compared to 4 for o1. See the detailed benchmark chart above for per-category results.
o1 generates tokens faster at 134 tok/s vs 68 tok/s. o1 also has lower time-to-first-token (15.85s vs 46.22s).
Choose based on your priorities: Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) for lower cost, Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) for stronger benchmark performance, and o1 for faster generation. For latency-sensitive apps, check the TTFT comparison above.