Given how easy it was to get our own version of an AI service tool set up, I'm shocked to see a huge, capable company buying it's way into that functionality as

Given how easy it was to get our own version of an AI service tool set up, I'm shocked to see a huge, capable company buying it's way into that functionality as opposed to using their large existing datasets to fine-tune an internal tool. Is 3.6B really the better option?