This.
Any complex parent table span cell relationship still has low accuracy.
Try the reverse, take a complex picture table and ask Chatgpt5, claude Opus 3.1, Gemini Pro 2.5 to produce a HTML table.
They will fail.
Any complex parent table span cell relationship still has low accuracy.
Try the reverse, take a complex picture table and ask Chatgpt5, claude Opus 3.1, Gemini Pro 2.5 to produce a HTML table.
They will fail.
https://chatgpt.com/share/68f5f9ba-d448-8005-86d2-c3fbae028b...
Edit: Just caught a mistake, transcribed one of the prices incorrectly.
Just get a DEF 14A (Annual meeting) filing of a company from SEC EDGAR.
I have seen so many mistakes when looking at the result closely.
Here is a DEF 14A filing from Salseforce. You can print it to a PDF and then try converting.
https://www.sec.gov/Archives/edgar/data/1108524/000110852425...
As mentioned above I have about 200 construction invoices. They are all formatted in a way that doesn't make sense. Most fail both OCR and OpenAI
Spreadsheets are not the biggest problem though, as they have a reliable 2-dimensional grid - at worst some cells will be combined. The form layouts and n-dimensional table structures you can find on medical and insurance documents are truly unhinged. I've seen documents that I struggled to interpret.
(I imagine it also had the benefit of reducing fraud/errors).
In this day and age, it's probably easier/better to change the process around that as there's little excuse for such shit quality input. I understand this isn't always possible though.