Abstracts can also be close to a full page long. While this doesn't have to be bad, it's usually more information you're looking for (especially if you were only going to read the abstract anyway).
I would prefer to optimise things that actually take a lot of time. It often takes me just a few seconds to eliminate a paper as irrelevant to my search based on its abstract.
If I can't, I'm gonna have to skim the paper anyway. But even that could be pretty quick.
Quickly reading something to gauge relevance is something I can confidently say I do much faster than GPT can.
And I don't have a paper feed. I look up papers relevant to what I'm working on at the time.