[BenderV]

My 2 cents, building a tool in this space...

> Do you need an expert to verify if the answer from AI is correct?

If the underling data has a quality issue that is not obvious to a human, the AI will miss it too. Otherwise, the AI will correct it for you. But I would argue that it's highly probable that your expert would have missed it too... So, no, it's not a silver bullet yet, and the AI model often lacks enough context that humans have, and the capacity to take a step back.

> How is it time saved refining prompts instead of SQL?

I wouldn't call that "prompting". It's just a chat. I'm at least ~10x faster (for reasonable complex & interesting queries).