•Anthropic has developed Claude Mythos Preview, their most capable frontier model to date, showing a striking leap over previous models like Claude Opus 4.6.
•Despite its advanced capabilities, Anthropic has decided *not* to make Mythos generally available due to significant safety concerns identified in its comprehensive System Card.
•The model scored high on various risk assessments, including chemical/biological, autonomy, and cybersecurity, prompting its limited deployment in a defensive cybersecurity program.
•Findings from Mythos's evaluations will directly inform the safety measures and release strategies for future Claude models, emphasizing Anthropic's commitment to responsible scaling.
•Anthropic has developed Claude Mythos Preview, their most capable frontier model to date, showing a striking leap over previous models like Claude Opus 4.6.
•Despite its advanced capabilities, Anthropic has decided *not* to make Mythos generally available due to significant safety concerns identified in its comprehensive System Card.
•The model scored high on various risk assessments, including chemical/biological, autonomy, and cybersecurity, prompting its limited deployment in a defensive cybersecurity program.
•Findings from Mythos's evaluations will directly inform the safety measures and release strategies for future Claude models, emphasizing Anthropic's commitment to responsible scaling.
