Anthropic says Opus 4.6 found 500+ previously unknown high-severity security flaws in open-source libraries with little to no prompting during its testing (Sam Sabin/Axios) 05-02-2026

Sam Sabin / Axios:
Anthropic says Opus 4.6 found 500+ previously unknown high-severity security flaws in open-source libraries with little to no prompting during its testing — – Before its debut, Anthropic’s frontier red team tested Opus 4.6 in a sandboxed environment to see how well it could find bugs in open-source code.