I would suspect that the company is too small to train their own LLM from scratch. But Stack Overflow probably has too much traffic to just pay for something li

I would suspect that the company is too small to train their own LLM from scratch. But Stack Overflow probably has too much traffic to just pay for something like the ChatGPT API and built something on top of it. I'm not sure how many good options there are in between, can you realistically create your own LLM for this kind of specialized area without the kind of resources OpenAI/Google/Microsoft have?