[lolinder]

> Er, V3.5 is "the very first iteration"?

Yes. ChatGPT-3.5 was the very first LLM-based chat assistant that was announced on Nov 30, 2022 [0]. It hasn't gotten better since then, just more censored and faster.

It followed GPT-1 (which was only interesting to people who were already in the know), GPT-2 (which was neat but widely recognized as pretty useless and again, not something normal people noticed) and GPT-3 (which was cool, but didn't provide a chat interface, it could only complete texts, so it made a decent base for the early versions of Copilot).

[0] "ChatGPT is fine-tuned from a model in the GPT-3.5 series, which finished training in early 2022." https://openai.com/index/chatgpt/