No prompt makes an answer true
Only a check outside the model can. Here are the errors that show up when it runs, on documents and on code, each one backed by its source.
What to expect: posts about documents and about code, each with a real error and the check that caught it. Every number stands with its source.
AI answers on technical documents, research and data analysis, checked against the source.

AI Review
What a pack of 500 prompts really costs
The price is the smallest part of the bill. Three costs nobody puts on the invoice.
16 August 2026 · 5 min
