According to TechFlow, people familiar with the matter revealed that Apple (AAPL.O) recently withdrew from negotiations for OpenAI's current round of financing, which is scheduled to end next week. Microsoft (MSFT.O) and Nvidia (NVDA.O) have been negotiating to participate in this round of investment.

Microsoft is expected to invest about $1 billion, on top of its $13 billion already spent, according to people familiar with the matter.

Earlier news said on August 30 that Apple was in talks to join OpenAI's new round of financing.