Digest · September 12, 2026

Claude Week — September 12, 2026

Following all this is one thing. If you would rather be good at it, we teach that at ClaudeMaster.

The biggest things worth knowing

Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1 — Impact major · claude.ai, Claude API (api.anthropic.com), Claude Code — full timeline in our archive. · ClaudeNetwork
Elevated latency on the Claude API for some users — Impact minor · Claude API (api.anthropic.com), Claude Cowork — full timeline in our archive. · ClaudeNetwork
Degraded functionality for Claude Cowork on Windows — Impact major · Claude Cowork — full timeline in our archive. · ClaudeNetwork