> If you haven’t use LLMs at all, a weekend would be enough to be on par with everyone else in the industry

Disagree. It takes a lot of experimenting to find the right balance between sufficient guardrails and insane halluciations. And it'll be different depending on work domains.

I'm still refactoring AI workflows every week after more than a year or so and still working on it. Will probably be a perpetually ongoing effort as models change.