Quoting Claude Opus 5 system prompt

1 · · Aug. 9, 2026, 11:47 p.m.
Summary
The blog post discusses the release and subsequent suspension of access to Claude Fable 5 and Claude Mythos 5 by Anthropic in 2026 due to U.S. export controls, detailing how Claude processes these events without expressing personal opinions and suggests checking Anthropic's site for updates. This information is relayed through Claude's system prompt designed to ensure accurate responses regarding the export situation.