Mythos

Morning Minute is a daily newsletter written by Tyler Warner. The analysis and opinions expressed are his own and do not necessarily reflect …

In brief Anthropic said its unreleased Claude Mythos Preview model found a previously unknown attack on HAWK, dropping the cost of stealing …

In brief 360 founder Zhou Hongyi unveiled “Tulong Feng” at ISC.AI 2026, claiming it is China’s answer to Anthropic’s Mythos Z.ai’s GLM-5.2, …

In brief OpenAI released GPT-5.5-Cyber, a model designed to help find and fix software vulnerabilities faster than previous versions. It outperforms Anthropic’s …

Anthropic has suspended access to its Fable 5 and Mythos 5 AI models after receiving a US government export control directive citing …

In brief The U.S. government ordered Anthropic to suspend access to its two most advanced AI models, Fable 5 and Mythos 5, …

Anthropic is reportedly set to release a public version of its Mythos AI model, and crypto analyst The DeFi Investor is urging …

In short A security firm claims it has developed a working macOS kernel exploit that targets Apple’s M5 chip and Memory Integrity …

President Trump may sign a new executive order on AI security, according to the Washington Post, as the administration weighs whether frontier …

In short OpenMythos is a ground-up reconstruction of the Claude Mythos architecture, built solely from public research papers and educated guesses. Claude …