The “best bromance in tech” has had a reality check as OpenAI has tried to change its deal with Microsoft and the software maker has tried to hedge its bet on the start-up.

Microsoft partnership with OpenAI has become increasingly strained by the AI startup’s need for more funding and computing power, Microsoft’s recruitment of leaders from OpenAI rival Inflection AI, and questions over the Redmond company’s equity stake in any future version of OpenAI as a for-profit company.

The New York Times on Thursday published a look at the “fraying” relationship between OpenAI and its investor, partner, and, increasingly, rival, Microsoft, reporting their five-year romance has cooled owing to financial pressure on OpenAI,