Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | GPT-4 | Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) |
|---|---|---|
| Input ($/M tokens) | $30 | $10 |
| Output ($/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 $37.50/M for GPT-4.
Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) wins 7 out of 12 benchmarks compared to 0 for GPT-4. See the detailed benchmark chart above for per-category results.
Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) generates tokens faster at 68 tok/s vs 37 tok/s. GPT-4 also has lower time-to-first-token (1.03s 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 Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) for faster generation. For latency-sensitive apps, check the TTFT comparison above.