[basch]

> You wouldn't say GPT to mean large language models or autoregressive language models.

In the analogy, that’s exactly what you are saying. Identical to Toyota and BMW meaning “the make of the car.”

Maybe reimplementation is a more precise word, a black box re-engineering/cloning. In this case I inferred it by knowing it was a different LLM underneath, and that this group didn’t have access to the chatgpt source code.