logoalt Hacker News

thomashabets2yesterday at 10:38 PM1 replyview on HN

I pointed plain old gpt 5.5 at openbsd and found plenty of bugs.

Sent patches for two just in "find".

Openbsd, like all other projects, needs a large scale LLM powered bug squash effort.

My recent experience: https://blog.habets.se/2026/05/Everything-in-C-is-undefined-...


Replies

tiffanyhtoday at 3:12 AM

> This was the most critical vulnerability we discovered in OpenBSD with Mythos Preview after a thousand runs through our scaffold. Across a thousand runs through our scaffold, the total cost was under $20,000 and found several dozen more findings.

Anthropic did that for OpenBSD.

https://red.anthropic.com/2026/mythos-preview/