CoinDesk news: Mitchell Hashimoto, co-founder of software company HashiCorp and the author of the open-source terminal Ghostty, used ChatGPT to connect to read-only emails and automatically check construction invoices. The system reviewed records from 3 years and identified about $45,000 in accounting errors. The issues included incorrect amounts, duplicate invoicing, and incorrect recipients. These invoices are typically low-resolution scanned PDFs of around 50 pages. Hashimoto said he manually verified each item one by one and received refunds or credits. In the past, he spent about $1,800 on ChatGPT; the amount recovered this time is equivalent to 25 times the cost.