Are there any proven examples of a company doing this (starting with a manual approach), receiving investment, and eventually developing a working AI product?
Depends on how you define AI. If you're talking hands-off, learned-from-scratch ML and deep learning. I'm not sure. If you're talking "used a human to learn the steps and then slowly automated those steps", then you're describing basically every company that's ever existed.
>If you're talking "used a human to learn the steps and then slowly automated those steps", then you're describing basically every company that's ever existed.
* Interestingly, searching on Google for “x.ai human” lead me back to the HN discussion as the 4th link! I’m seeing HN discussion surface in organic search results a lot more lately.