The first autonomous agent cyberattack is an unprecedented event that deserves unprecedented transparency. Today we’re sharing everything we can: a full technical timeline, an interactive replay, and how we used an open model to defend ourselves, so defenders everywhere can learn…↗

Introducing Claude Sonnet 5, our most agentic Sonnet yet. It makes plans, uses tools like browsers and terminals, and runs autonomously at a level that just a few months ago required larger and more expensive models.↗

Claude Fable can run autonomously for days. This is the single highest-leverage prompt I use to stay on top of it: "Spin up a persistent HTML page. As you work, append clear, timestamped updates with screenshots/media so I can follow along." Literally a 10x better experience.↗

Sketch is an autonomous software apprentice that helps generate and improve software using an agentic workflow.↗

Introducing Devin 2.2 – the autonomous agent that can test with computer use, self-verify, and auto-fix its work. Try it for free! We’ve also overhauled Devin from the ground up: - 3x faster startup - fully redesigned interface - computer use + virtual desktop ...and hundreds…↗

Ralph is an autonomous agent loop for implementing features, orchestrating iterative work until changes are ready.↗

Can’t believe it took me so long to try this… Who’s working on an autonomous agent related startup? Drop your url/description below 👇 (I’ll make sure my VC friends see this!)↗

Prime Agent is a self-improving RLM agent built to support coding workflows and long-running autonomous tasks.↗