# The National Security Agency has been testing the capabilities of Anthropic PBC’s new artificial intelligence model.

*genai · news · 2026-04-30 · Bloomberg*

## Key points

- The NSA is testing Anthropic's Mythos AI model for cybersecurity vulnerability detection in software.
- Mythos has been evaluated on Microsoft products among other popular software by the NSA.
- NSA officials have found the Mythos model notably fast and efficient in discovering security flaws.
- Details of the NSA's tests on Mythos have not been publicly disclosed prior to this report.

**Companies:** Microsoft Corp., Anthropic PBC
**Countries:** United States

[Read the full story on Bloomberg](https://www.bloomberg.com/news/articles/2026-04-30/nsa-testing-anthropic-s-mythos-to-find-flaws-in-microsoft-tech)

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