claude-mythos-5-1 is not scheduled to shut down sooner than 2027-09-01 per Anthropic's deprecation page (checked 2026-10-17). No official replacement is published on that page. Published on the official docs: input price $10 per million tokens, context window 1,000,000 tokens, max output 128,000 tokens.
claude-mythos-5-1 is not scheduled to shut down sooner than 2027-09-01 per Anthropic's deprecation page (checked 2026-10-17). No official replacement is published on that page. Published on the official docs: input price $10 per million tokens, context window 1,000,000 tokens, max output 128,000 tokens.
What replaces claude-mythos-5-1?
No official replacement is published on that page.
Is claude-mythos-5-1 deprecated?
claude-mythos-5-1 status is active.
Sources
Anthropic model deprecations — checked 2026-10-17. claude-mythos-5-1 | Active | N/A | Not sooner than September 1, 2027
Anthropic model docs — checked 2026-10-17. Model ID: claude-mythos-5-1 | context window 1000000 | max output 128000 | input $10/MTok | output $50/MTok