It seems to me that most startups use one of the LLMs from OpenAI (ChatGPT / GPT-4), other closed-source LLMs like Bard or Claude are not that popular and open-source LLMs are only really used by researchers or hobbyists who run them locally.
Curious to hear from others who are building something on top of an LLM, which one do you use? Has anyone fine-tuned and deployed their own LLM or do you just rely on ChatGPT?
