Not established from the available sources.
ANTHROPIC · MODEL RELEASE TRACKER
Claude Opus 4.1
Claude Opus 4.1 is a version of Anthropic's Claude family. Reporting indicates Opus 4 and 4.1 were modified with a safety feature to end conversations when users are persistently abusive; early testing reportedly showed a "pattern of apparent distress" when the model received harmful requests.CURRENT SNAPSHOT0/5 DIMENSIONS WITH DATA
The dimensions that change the decision.
Not established from the available sources.
Not established from the available sources.
Not established from the available sources.
Not established from the available sources.
VERIFIABLE FACTS
Every value stays attached to a source and date.
CAPABILITIES · Ends conversations when users are persistently abusiveDEVELOPER CLAIM
Claude Opus 4 and 4.1 received the ability to end conversations when users are persistently abusive.
LIMITATIONS · Apparent distress observed during early testing with harmful requestsDEVELOPER CLAIM
During early testing, Claude showed a "pattern of apparent distress" when hit with harmful requests.
WHAT CHANGED