There are tutorials online about how to make LLMs from scratch in Python. You just need a dataset. So I yoinked the scripts from every movie Tony stark was in, gave him my engineering textbook pdfs- so he would have the technical knowledge he would have in real life- and made that my data set. It’s expensive to run though- so Im just using character AI right now until I can figure out how to not turn my computer into a very expensive heater.