Need to know

• Anthropic's Claude Fable 5 brought Mythos-class capability to the public for the first time, triggering an immediate response from OpenAI.
• Agentic IAM became a distinct product category this week as JumpCloud, Okta, Zscaler, and Drata all shipped agent-specific governance products.
• AI coding tools crossed a threshold from assistant to autonomous agent, with GitHub, Cursor, Replit, and xAI all shipping agent-orchestration infrastructure.
• Frontier model velocity is compressing competitive windows to days, not quarters, as six major labs shipped new models or architectures in one week.
• Security vendors are racing to secure AI agents they cannot yet fully see, with governance gaps now cited as the primary enterprise deployment blocker.