Access to the powerful Claude Fable 5 model has been halted , particularly concerning its integration into GitHub Copilot, pending internal review. Core Issue: Anthropic's updated policy for Mythos-class models dictates that user prompts and generated outputs are retained for 30 days for safety purposes. This follows a recent pushback against external AI assistants at Microsoft. Earlier in the year, the company canceled most of its internal licenses for the Claude Code assistant. Sou...