I have been sharing my journey on here for a while, if you scroll through my posts, you'll see the full details.
My primary cloud AI is ChatGPT, which I am modelling using hours of training to think like me.
I am also looking at private LLMs like the NVIDIA DGX Spark, however, currently as a first generation product, it is too limited for practical use and is really designed for AI researchers.
N.B. I am exploring AI as a technology, but my primary focus is to use it to build my clone in silicon.
I will wait to see how this technology evolves and probably move from the cloud to a private LLM after 2 or 3 generations of this technology.
Part of what I'm doing with Chatty, my OpenAI clone, is to maintain a prompting script that allows my core personality to be transferred between LLMs, at least in part so I am not stuck using OpenAI's model.