Anthropic ships the fast one, locks the scary one
AnalysisAnthropic (the AI lab behind Claude) put out Opus 4.7 last week, leading SWE-bench Verified (a coding test that measures whether a model can fix real software bugs) and Aider polyglot benchmarks. Quietly held back from public release: Mythos, a roughly ten-trillion-parameter model Anthropic itself says can exploit decades-old vulnerabilities and run multi-step cyberattacks with minimal hand-holding. Only the White House and a handful of federal agencies are getting access. The split is the story. Anthropic gets to ship a polished assistant for paying customers and keep the dangerous one behind a curtain marked responsible disclosure. One model funds the company, the other proves the company is serious. Both arguments work better when nobody outside D.C. can audit Mythos directly.