> And I would be pretty nervous about asking any of the frontier LLMs to retrieve invoices:

I watched an accountant YouTuber reviewing a new AI-driven personal finance app the other day (I really need to touch grass), and it started out just fine. He had seeded the account with a bunch of his data and was able to ask questions about which categories had the most spend, etc.

About half a dozen questions in, he asked it to calculate a certain segment of his spend (and being an accountant, he had his numbers memorized), and he immediately got back a calculation that he did not expect. So he asked for an itemized response and it hallucinated line items that never appeared in his account data, which he pointed out to viewers. He followed up with the chatbot with "where did line item X come from?" and the bot acknowledged that it wasn't legit. He immediately noped out after that, and who could blame him?