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.

OpenAI has been trying to negotiate with its top investor for months. Here’s what’s reportedly causing the issues.

In the interview, CEO Sam Altman laid out a roadmap focused on unifying the user experience, starting with the release of GPT-5 this summer.