Okay, this is actually terrifying. Fable 5.2 built three physical electronic devices from scratch. Anthropic requested: “a device that connects to a computer via USB-C and includes microphones and a speaker, supporting Bluetooth with a PCB antenna.” From this simple prompt, Claude: - Wrote the device specifications - Designed the circuit schematic - Decided where to place each component - Routed the copper connections between them - Designed a casing to be printed on a 3D printer - Programmed the firmware - Prepared the bill of materials Anthropic’s project partner, Diode, assembled the circuit boards and deployed the firmware under Claude’s instructions and direction. Result: A working speakerphone that still functions today, after weeks of use. “Incredible” is an understatement—now it’s not just good software that AI can create; it’s hardware too.