Comment by parmenid

It's clear that ChatGPT is used as the foundation model and that Chat PDF did some prompt engineering to make it focus on the contents of the PDF primarily. I uploaded a government form for family expense reimbursement, and then asked Chat PDF what the capital of France was. Its answer: "I'm sorry, but the answer to your question is not relevant to the content of this PDF file. However, the capital of France is Paris."