[greyman]

From a moral perspective, I would argue that this is still theft of IP, even if it's a "clean room reimplementation". The code carries valuable information about what works and what doesn't — knowledge that Anthropic had to discover through real work and iteration. It's the same as a Chinese factory duplicating a product: they skipped the entire R&D phase and saved time and money.

[lesostep]

following this reasoning, wouldn't it mean that everything that Claude generates is a theft of IP?

It was taught on massive code bases that carried valuable information about what works