Stop Building AI Data Centers. This $8 Chip Just Trained Its Own Model.
An $8 ESP32-S3 microcontroller just trained a language model from scratch—319K parameters, two days, zero cloud. It barely works, and that’s the point. While the industry obsesses over scaling up, the real frontier is scaling down: AI that learns on-device, preserves privacy, and costs less than lunch. The underdog era of AI has begun.