Anthropic disables Claude Fable 5; Opus 4.8 and GPT-5.5 still the recommended pair

Fable 5停用，Opus 4.8与GPT-5.5仍领先

Anthropic has disabled Claude Fable 5 for all users following a US government directive. New sessions default to Opus 4.8, and existing Fable 5 sessions return errors. DAIR.AI's Elvis Saravia says not to panic: Fable 5 wasn't worth it for most tasks, with high cost and nerfed performance. He still recommends Opus 4.8 for planning and GPT-5.5 for execution. The post doesn't spell out the directive's details or how long the suspension lasts.

Why it matters: A major Anthropic model pulled by government order is a rare policy-meets-product event. Elvis provides concrete alternatives and cost judgment, directly useful for Claude users. Score held back because the source is a personal tweet — no official Anthropic statement or order ...