There was a prominent hacker news article about it today, but it seems to have disappeared? Or more like I can’t find it.

Look up 360 security technology tulongfeng and yitianzhen , as well as Sakana AI’s Fugu series, IIRC.

GLM5.2 is also excellent, it found things in our codebase that 5.5 and opus 4.8 both missed.