# Show HN: Beating GPT5.5-xhigh for Coding agent security with SLMs and IRM

> Source: <https://harden.run/blog/aif-research-and-evidence>
> Published: 2026-08-27 22:33:19+00:00

Coding agents craft arbitrary code so securing them is more complicated than red-teaming. We post trained a cyber-security small llm, changed how it reasons and supplemented our controls using program analysis techniques such as inline reference monitoring to outperform GPT5.5-xhigh on hard benchmarks like LinuxArena and SleightBench.

Free product available at harden.run and full benchmarks in the blog post.

Comments URL: [https://news.ycombinator.com/item?id=49472151](https://news.ycombinator.com/item?id=49472151)

Points: 2

# Comments: 1