tech
January 18, 2026
Musk sues OpenAI and Microsoft for $134 billion
Elon Musk has accused OpenAI and Microsoft of “wrongful gains” from his financial support and demanded restitution in court

TL;DR
- Elon Musk is demanding $134 billion in damages from OpenAI and Microsoft.
- Musk claims OpenAI gained between $65.5 billion and $109.4 billion from his early financial support.
- Microsoft allegedly gained between $13.3 billion and $25.1 billion from its investment in OpenAI.
- Musk invested approximately $45 million in OpenAI in 2015 and left the board in 2018.
- OpenAI has called Musk's demands 'baseless' and part of a 'harassment' campaign.
- The defendants are challenging the validity of expert financial analysis presented by Musk's team.
- Musk has been critical of OpenAI's commercialization and partnership with Microsoft.
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