RoboDojo Sim

Anthropic released Claude Fable 5.2, a language model that paints rather than generates pixels, placing individual brushstrokes on a virtual canvas via Python code while simulating bristle texture and paint application. Demos include a parking garage scene built from roughly 700,000 strokes and a bird painting from 111 coordinate sequences, with deviations painted over afterward. It scored 64.9% on Anthropic's internal RoboDojo Sim benchmark versus 29.8% for OpenAI's GPT-6 Astra, but trailed in speed and fine motor control in a real robot-arm test.

Anthropic released Claude Fable 5.2 and Mythos 5.2, with Fable 5.2 scoring 64.9% on the RoboDojo Sim robotics benchmark, up 37.3 points from the prior 27.6% and ahead of Claude Opus 5.5 and GPT-6 Astra as well as most robotics-specific systems. Official demos show real-robot manipulation tasks, and former Tesla Optimus researcher Bingjie Tang has joined the company, signaling Anthropic's push of general models into embodied AI.