If the offer is accepted, the money will be compounded over a period of several years.
The negotiations must have been going on for several months, according to people with access, but the companies themselves have not commented on the deal.
Chat GPT has become an internet phenomenon since its launch in November. With just a few commands, the AI robot can write everything from news to song lyrics and answer questions. But Sam Altman, CEO of Open AI, has said himself that the service is not yet good enough to be trusted.
Microsoft has already invested $1 billion in Open AI, and is working to incorporate Chat GPT into its Bing search engine.