OpenAI has built one of the fastest-growing businesses in history. It may also be one of the costliest to run. The Information: The ChatGPT maker could lose as much as $5 billion this year [non-paywalled source], according to an analysis by The Information, based on previously undisclosed internal financial data and people involved in the business. [...] On the cost side, OpenAI as of March was on track to spend nearly $4 billion this year on renting Microsoft's servers to power ChatGPT and its underlying LLMs (otherwise known as inference costs), said a person with direct knowledge of the spending. In addition to running ChatGPT, OpenAI's training costs -- including paying for data -- could balloon to as much as $3 billion this year. Last year, OpenAI ramped up the training of new AI faster than it had originally planned, said a person with direct knowledge of the decision. So while the company earlier planned to spend about $800 million on such costs, it ended up spending considerably more, this person said.