Generative AI, and ChatGPT in particular have been catnip to the tech press, the mainstream media, and the conversations of professionals in nearly every
Well I even subscribed to it at some point. But they really dumbed down the v4 model, so it's basically on par with the V3 model. And since open source models have become good, there's no point in using ChatGPT anymore.
Especially Facebook's Llama2 and any checkpoints of that model are solid.
And if you are a coder, I think there was one called "Starchart" just aimed at code autocomplete, which seems to be a good start.
But ofc as alehc already mentioned, these all exist on Hugging Face and you will find a treasure trove of AI models on there regarding every possible implementation.