[hewlett]

They probably mean the use of GPTs to correct OCR errors

[mdp2021]

That is what I meant. But you have to integrate the subsystems properly, and I am not aware of an engine that does it.

[xen2xen1]

Indeed, that is part assumption on my part the OCR will get better with a GPT like setup, but, as I said on another comment, I have trouble believing OCR won't be one of the better applications, as "is this an A" is much more straightforward than most of what GPTs have been doing.