I've got a scan from a book that I OCR with new releases. Ligatures, critical sigla, Fraktur letterforms, subscripts, superscripts, etc. Nothing special about this model for overly-detailed work like mine. It's been a while since I last tested (and discontinued my subscription), but the "pro" models from OpenAI dominate. Not surprising, given the price difference, but it would be nice if an OCR-specific model could p…
Do all the models give you the bounding boxes, block labels as this one (allegedly) do?
There's always room for improvement, though. I suspect a tool will emerge for highly detailed OCR that implements a nested bounding-box-based multi-scale approach, effectively OCRing small sections at a time and then gradually compiling them by expanding the surface area using the bounding boxes.
I've thought a lot about implementing it anyway.
edit: I see you're asking about the block labels. Leaving the comment in case someone finds it interesting.