Claude Fable 5 review: 5-3 over Opus 4.8, GPT-5.5 timed out
Claude Fable 5 review with real benchmark data: 5-3 over Opus 4.8, 3-0 vs GPT-5.5 on 12 coding and reasoning prompts. Includes subscription break-even math.
Tag · llm-comparison
Claude Fable 5 review with real benchmark data: 5-3 over Opus 4.8, 3-0 vs GPT-5.5 on 12 coding and reasoning prompts. Includes subscription break-even math.
We tested four LLMs on six real buggy diffs: Claude Opus 4.7 swept the field, Haiku 4.5 beat GPT-4o 5-0, and GPT-4o finished with zero wins in 2026.