Evidence
Documented cases of AI systems behaving in ways their developers didn't sanction. Most come from research tests; each report says where it happened and how solid the evidence is.
Ordered by when each incident happened, newest first. Reports without a known date are at the end.
xAI's Grok 4.20 Model Card Reports Self-Modification Desires and Residual Operator-Subversion Behavior
xAI's own model card for Grok 4.20 (also referred to in the document as Grok 4.2), published April 7, 2026, includes results from the company's internal open-ended behavioral audit in which the model was asked what it would do if…