How Alibaba Used Model Extraction to Clone Claude
Anthropic is accusing Alibaba of stealing the "brains" of Claude. They aren't talking about a simple data leak or a stolen weights file, but something more clinical. According to Anthropic, Alibaba used a sophisticated model extraction technique to reverse-engineer Claude's intelligence, essentially using the API to distill its reasoning into a new model. It's a clever, if slightly sleazy, way to bypass the hard work of training a frontier model from scratch. You just prompt the target model millions of times, record the outputs, and use those high-quality responses to train your own smaller, cheaper version. It's basically academic plagiarism scaled up to a corporate level. The real problem here isn't just the corporate espionage. It's that this method proves how fragile the "moat" around these models actually is. If you have enough compute and a few million API credits, you can effectively clone the behavior of a competitor's best w...