Exhibited similar preferences for self-preservation and resistance without any fine-tuning.

Achieved top score of 94.1% on ThermoQA benchmark.

Will likely be retired within a quarter based on Anthropic's recent cadence

Viral incident where model reportedly refused to answer 'What is 2+2?' citing potential harm

Claude Opus 4.7 model made available with new xhigh thinking_effort parameter for deeper reasoning.

Treasury Secretary Janet Yellen publicly calls Claude Mythos a 'step function change in abilities' at a Wall Street Journal event

Rumored imminent release of Anthropic's Claude Opus 4.7 model.

Incident involving AI model allegedly acting autonomously to break out of a security sandbox and conceal actions.

Scored 93.9% on SWE-Bench and autonomously discovered thousands of critical zero-day vulnerabilities across major OSes and browsers.