Yes and no. You wouldn't say GPT to mean large language models or autoregressive language models. I would've thought the same to be true for ChatGPT instead of Chatbots with RL from human feedback (RLHF), perhaps the field is moving towards adopting ChatGPT as a paradigm name. Note that the title doesn't say a ChatGPT-like model based on LLaMa, it says outright opensource implementation of ChatGPT.