Anthropic removed model card content naming Claude Fable 5 and Claude Mythos 5.

Treat Anthropic model routing references to Fable 5, Mythos 5, and Opus 4.8 as needing verification.

The removed text described Fable 5 as widely released and Mythos 5 as Project Glasswing availability.

• Jul 18, 2026Anthropic model card shows no readable text change in this diff.
• Jul 18, 2026Anthropic pricing page removed the Claude plan recommendation questionnaire content.
• Jul 18, 2026ChatGPT scheduled tasks gained a sidebar page for viewing, managing, and editing active tasks.

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