No official replacement is published on that page. claude-fable-5-1 is not scheduled to shut down sooner than 2027-09-01 per Anthropic's deprecation page (checked 2026-10-17). Published on the official docs: input price $10 per million tokens, context window 1,000,000 tokens, max output 128,000 tokens.
claude-fable-5-1 model page · Anthropic
A migration diff is not published because the official page did not name a replacement model id.
No official replacement is published on that page. claude-fable-5-1 is not scheduled to shut down sooner than 2027-09-01 per Anthropic's deprecation page (checked 2026-10-17). Published on the official docs: input price $10 per million tokens, context window 1,000,000 tokens, max output 128,000 tokens.
Price comparison is not published yet.
Context window sizes are not both published on the official pages we checked.