Anthropic built the safest AI on the planet. Wrote it a constitution. Made 'responsible AI' their entire brand.
Then they let it tear through enterprise software.
$285 billion wiped in a single day.
LegalZoom down 20%. Thomson Reuters worst day in company history—down 16%. RELX (LexisNexis) lost $11B. Wolters Kluwer shed $6B.
This wasn't a crash. It was precision demolition.
Feb 6, 2026 05:30Feb 3: Anthropic dropped 11 Claude Cowork plugins. Legal review. Contract analysis. NDA triage. Compliance tracking. Financial research. Marketing automation.
Within hours, a Goldman basket of US software stocks fell 6%—worst since April's tariff crash.
How do you crash a market without breaking anything? You build the thing that makes everything else obsolete.
Full breakdown: https://thetechpencil.com/anthropic-wrote-a-constitution-and-then-broke-the-market-427ec921ff9f