Microsoft on how custom AI offers your business better answers, lower costs, faster innovation

Large language models like ChatGPT's GPT-4o seem to have all the information in the known universe, or at least what engineers could scan off the internet. But what if you want to use a large language model (LLM) with proprietary information from your own company data, or specialized information that's not publicly available on the internet, or otherwise train an LLM to have specialized knowledge? Do you build an LLM from scratch? Do you use a small, open-source, self-hosted model that contains only your information? As it turns out, you can start with an LLM like GPT-4o, and then build up on top of that.