To add, if you take the time to make GPTs for specific subjects and just shovel in pdfs you basically have expert level references without ChatGPTs tendency to make up stuff. I’ve been testing this by combining pdfs/books into single pdf documents to maximize GPTs document restrictions . If you can find books that are relatively small in size the 20 pdf file restriction can easily be over 400 books with each book roughly 400 pages. The hardest part is finding enough books for a given subject
To add, if you take the time to make GPTs for specific subjects and just shovel in pdfs you basically have expert level references without ChatGPTs tendency to make up stuff. I’ve been testing this by combining pdfs/books into single pdf documents to maximize GPTs document restrictions . If you can find books that are relatively small in size the 20 pdf file restriction can easily be over 400 books with each book roughly 400 pages. The hardest part is finding enough books for a given subject