OpenAI has acquired Hiro, an AI personal finance startup founded in 2023, bringing roughly ten employees onto the ChatGPT team to build financial planning capabilities. Hiro let users model what-if scenarios around salary, debt, and expenses, with a built-in math verification layer to catch reasoning errors — a deliberate hedge against LLM arithmetic failures. The Hiro product winds down April 20; OpenAI committed to deleting all user data by May 13. No price was disclosed; Hiro had raised $23M and was last valued at $86M. The deal is OpenAI's second consumer-vertical acquihire in under a month, following healthcare startup Torch Health.