I guess "improve on a vector we put it on".
E.g. the dystopian idea of "Give AI with autonomy some power and tell it to improve itself until it can solve climate change". A nice vector. Except one with a real danger of "solving climate change" by simply eliminating 99% of humans.
Or, more practically, a vector "become better than X¹ at doing Y so our company can take over the niche that does Y and make profit". Improve to write better code, improve to make popular music, improve to write more viral content and so on.
¹ X the variable, placeholder, not the sewer formally known as twitter.