Anthropic’s Amodei Heads to White House as Mythos UK Roll-Out Still On

Anthropic quietly shipped Claude Mythos Preview on April 7, billing it as the first AI model whose vulnerability-hunting skills rival elite human red teams. According to IBM, the system scoured decades-old codebases and surfaced flaws hiding in plain sight across every major OS, browser, and financial stack. Fortune reports that in restricted demos Mythos produced working exploit chains for 198 flaws that had already survived multiple human audits. The model’s secret sauce appears to be a hybrid of symbolic reasoning and large-scale fuzzing that runs continuously on Anthropic’s internal clusters. Yet Tom’s Hardware notes the headline claim of thousands of zero-days is based on only 198 hand-reviewed cases; the rest are still unverified.

Security veterans greeted Mythos with a collective shrug-at-scale. As Fortune quotes one CISO: "We’ve never had a problem finding vulnerabilities. We find them every day. We actually have a pile of them that we just don’t fix." CSO Online frames the panic as misplaced: the industry can discover flaws faster than ever, but mean time to patch hovers around 60–90 days, and fixing legacy dependencies often takes quarters, not weeks. Control Risks adds that most enterprises still triage by CVSS score, leaving medium-severity bugs to linger indefinitely. Mythos simply magnifies this backlog, turning a steady drip into a firehose. The result is a structural mismatch between discovery velocity and remediation capacity.

Bloomberg AI first reported the White House formed a 72-hour task force on Mythos, freezing open release as regulators warned the patch backlog now threatens national infrastructure. That freeze is now looking more like a negotiation. On Friday, Anthropic CEO Dario Amodei is scheduled to meet with White House Chief of Staff Susie Wiles, according to multiple outlets. The Verge AI and Fortune both confirm the sit-down, framing it as an attempt by the Trump administration to gain controlled access to Mythos rather than shut it down entirely. Treasury and CISA reps will attend, signaling the administration wants to see the model’s exploit chains before deciding how tightly to throttle distribution.

While Washington hammers out terms, Anthropic has not blinked on its original timetable. A source familiar with the matter tells Red.anthropic the UK bank pilot remains green-lit for next week, with tier-1 institutions already slotting Mythos into pre-production red-team pipelines. The divergence is stark: US regulators wrestle with emergency controls while London banks prepare to let the same model loose on live payment rails.