Mythos 9 mentions · 5 days · first seen Apr 28, 2026 · last seen May 8, 2026 Often alongside: Anthropic · Cybersecurity · Claude · OpenAI · Pentagon · Google · Deepmind · Microsoft Timeline May 2026 8 stories · 4 daysMay 8, 2026 4 stories52Mozilla confirms 271 flaws surfaced by Mythos have "almost no false positives" Ars Technica 49OpenAI on Thursday announced that GPT-5.5-Cyber, a variation of its latest artificial intelligence model CNBC Technology 48When Anthropic unveiled its new Mythos model in April, it also delivered a stern warning to anyone developing software TechCrunch AI 38Mozilla boasts Mythos boosted Firefox flaw cull The RegisterMay 6, 2026 1 story53Spooked by Mythos, Trump suddenly realized AI safety testing might be good Ars TechnicaMay 2, 2026 2 stories52Mythos complicates the breakup, confirms Pentagon CTO, but Anthropic is still barred The Register 46Pentagon tech chief confirms Anthropic is still blacklisted, but Mythos is a separate issue CNBC TechnologyMay 1, 2026 1 story41After dissing Anthropic for limiting Mythos, OpenAI restricts access to Cyber, too TechCrunch AIApril 2026 1 story · 1 dayApril 28, 2026 1 story48Claude Mythos Preview Requires New Ways to Keep Code Secure IEEE Spectrum AI