Elon Musk testifies against Sam Altman in OpenAI trial: 9 key things that Tesla CEO said in court

April 29, 2026

Elon Musk testifies against Sam Altman in OpenAI trial: 9 key things that Tesla CEO said in court

Elon Musk took the stand in a trial against ChatGPT-maker OpenAI and CEOSam Altman. The lawsuit originally filed in November 2024 accuses the AI company and its executives of reversing their promises to keep OpenAI a nonprofit.The lawsuit’s trial began on April 27 with Sam Altman and Grek Brockman attending the day one of trial.Elon Musk was present on the second day as the first witness called to testify in the trial. In his testimony, Musk spoke about his upbringing, companies he owns, his role in founding OpenAI and his understanding of its structure. Musk argued that the reason he co-founded OpenAI was to keep AI away “from the bad guys.” The tech billionaire further argued that he was not opposed to the creation of a small for-profit subsidiary, “as long as the tail didn’t wag the dog.” Here’s a look at top 10 things that Elon Musk talked about in his testimony against OpenAI