LLM Agents Are Now Finding Zero-Days: How AI is Autonomously Rewriting the Rules of Vulnerability Research

LLM Agents Are Now Finding Zero-Days: How AI is Autonomously Rewriting the Rules of Vulnerability Research 💡 TL;DR: LLM agents like Claude Mythos Preview and GPT-5.5 are now autonomously hunting zero-days at massive scale — 10,000+ critical CVEs found in weeks. This post breaks down the agentic harness architecture, real-world results, and gives you runnable code to deploy your own AI security pipeline today. Published: May 26, 2026 · ⏱️ 18 min read · Tags: security, llm, ai-agents, vulner...