# Kimi K3 is top-tier at cybersecurity

> Source: <https://twitter.com/rauchg/status/2078647648307880209>
> Published: 2026-07-19 07:22:16+00:00

Based on internal evals:
▪️ Kimi K3 is top-tier at cybersecurity
There is chatter on X that Moonshot benchmark-overfit. These are stealth evals. Model has raw IQ.
▪️ Sol is a leap ahead in cyber capability
At a significantly higher cost, but quite remarkable still.
▪️ Fable refuses everything
We couldn’t get it to complete the run at all. What’s interesting is that Sol in comparison was much more open to helping with defensive cyber hardening
TL;DR: frontier, open-weight cybersecurity capability is here. Try it on

[deepsec.sh](http://deepsec.sh)for defensive purposes.We ran Kimi K3 on a private cybersecurity benchmark.
TL;DR: Kimi K3 is the workhorse for cyber security tasks at great recall/precision/price. GPT 5.6 is best recall/precision but at 7x higher cost per run.
For context,