Microsoft worried about over-reliance on OpenAI, Musk-Altman trial reveals
Internal correspondence presented in the lawsuit between Sam Altman and Elon Musk shows Microsoft grew concerned about its deepening reliance on OpenAI. The company sought to expand its own AI capacity to avoid leaving enterprise customers tied to a single model provider, the testimony said.

Internal documents introduced in the jury trial over partial ownership and control between Sam Altman and Elon Musk revealed that Microsoft executives debated the company's deepening partnership with OpenAI. Senior leaders wrote that leaving Azure customers locked to a single AI provider posed long-term risk to the platform.
In testimony, Altman described how Microsoft began increasing investment in its own foundation models in response to those concerns. The trial also surfaced claims that Musk had said control of OpenAI should pass to his children, statements he disputes.
The verdict could shape the future of one of the largest partnerships in the AI industry. Microsoft shares closed slightly lower while industry analysts said multi-provider strategies in enterprise AI may now move higher up corporate roadmaps.
More from North America

Cisco surges 15% on AI orders boom, plans to cut 4,000 jobs
Cisco beat Wall Street estimates as orders for AI infrastructure surged in the latest quarter, sending the stock up about 15% toward a record. Management said the company will cut roughly 4,000 jobs globally to reinvest in artificial intelligence and security.

US Wholesale Inflation Jumps 6% in April, Most Since 2022
US producer prices rose 6% in April year-on-year, the largest annual gain since 2022. The 1.4% monthly jump points to the Iran conflict feeding through into energy costs. Treasury yields climbed as expectations of imminent rate cuts faded.

GameStop makes $55.5bn takeover offer for eBay
GameStop CEO Ryan Cohen announced a $55.5 billion takeover offer for eBay, seeing potential to make it a much bigger rival to Amazon.