Sam Altman testified in the trial, defending himself and OpenAI against charges by co-founder Elon Musk that Altman betrayed Musk's trust that OpenAI would be a non-profit not a means of Altman enriching himself. Musk's attorneys pointed to testimony by OpenAI's former CTO and board members who said Altman was not trustworthy. Altman said Musk wanted control for himself.