Microsoft’s partnership with OpenAI is complicated, and the pair are intertwined both technologically and financially. While it’s been widely reported that OpenAI shares 20 percent of its revenues with Microsoft, there are additional revenue-sharing agreements in place, according to sources who are familiar with the arrangement.

The discussions hinge on key points, including the extent of Microsoft’s future ownership in OpenAI, with the tech giant contemplating maintaining its current deal.

The Wall Street Journal reports that OpenAI may run to the federal government and accuse Microsoft—its own sugar daddy—of anti-competitive practices. Were this to happen, OpenAI execs claim they would seek a federal regulatory review of the terms of the contract between them and Microsoft,