06:22 AM EDT, 06/17/2025 (MT Newswires) -- (Updates with responses from Microsoft ( MSFT ) and OpenAI in the fifth paragraph.)

Microsoft's ( MSFT ) partnership with OpenAI is under stress, with OpenAI executives weighing the option of accusing Microsoft ( MSFT ) of anticompetitive behavior, The Wall Street Journal reported Monday, citing people familiar with the matter.

The effort could include seeking a federal review of their contract for antitrust violations, the people reportedly said.

The companies are at a standoff due to the terms of OpenAI's $3 billion acquisition of Windsurf, according to the report.

Microsoft ( MSFT ) wants to expand its stake in OpenAI more than what the startup is willing to give, the sources reportedly said.

Microsoft ( MSFT ) and OpenAI told MT Newswires in a joint statement that the companies have a long-term "productive partnership that has delivered amazing AI tools for everyone." And that ongoing negotiations seem positive, and that the two will continue to work together in the future.

(Market Chatter news is derived from conversations with market professionals globally. This information is believed to be from reliable sources but may include rumor and speculation. Accuracy is not guaranteed.)