Pain map
What breaks in document AI
290 production incidents from public threads. Every quote links to its source. Pick a category and check it yourself.
Cost
6 of 6 quotes
“During ingestion, I found that PDF readers have limitations for solo developers, as they either need heavy GPUs or costly LLM-based solutions.”
Reddit, r/Rag · 2 August 2026 · open the thread “I've been using LlamaParse and it's the best quality I've tested, but the cost doesn't scale for my volume.”
Reddit, r/Rag · 30 July 2026 · in production · open the thread “At first I was doing OCR and passing the (tens of thousands of) characters into the LLM, which works, but it's expensive.”
Hacker News · 3 July 2026 · open the thread “Problem we're facing is for parsing and re-building we're using claude sonnet which is costly.”
Reddit, r/Rag · 8 May 2026 · in production · open the thread “it relies on recursive LLM calls per page, and the cost adds up quickly (\~$0.01/page).”
Reddit, r/Rag · 14 April 2026 · in production · open the thread Hit this one too? We are building for it.
“Anthropic dashboard, Reducto dashboard, Voyage AI dashboard, all separate”
Reddit, r/Rag · 13 March 2026 · in production · open the thread Hit this one too? We are building for it.
Method
We collected 448 public posts published after 1 November 2025 in which a builder describes document AI failing. Each link was re-opened on 8 November 2026. We kept the 290 where the quote is on the page, the author describes an incident and not an opinion, and has no tie to a vendor. Quotes are verbatim and trimmed after 420 characters. The grouping is ours. A complaint is not a measurement.