Elon Musk has accused Microsoft of aiding and abetting OpenAI as the lab abandoned its founding contract as a nonprofit. His lawyers have submitted evidence that Microsoft CEO Satya Nadella played a role in Sam Altman's efforts to return to OpenAI just five days after he was ousted as CEO. This was aimed at demonstrating Microsoft's significant control over OpenAI. Microsoft had earlier claimed that it should not have been drawn into the legal squabble between Musk and OpenAI.