The highly anticipated trial between Elon Musk, the world’s richest man, and Sam Altman, the CEO of OpenAI, concluded its second day of proceedings on Tuesday.

Axar.az informs, citing CNBC, Musk in 2024 sued OpenAI, Altman and Greg Brockman, the AI company’s president, alleging they went back on their promises to keep the artificial intelligence lab a nonprofit.

OpenAI established a for-profit subsidiary after Musk left its board in 2018, and Musk claims that his $38 million worth of contributions to the company were used for unauthorized commercial purposes.

Musk on Tuesday was the first witness called to testify in the trial. He spoke about his upbringing, his many companies, his role in founding OpenAI and his understanding of its structure. Musk said in his testimony that he was not opposed to the creation of a small for-profit subsidiary, “as long as the tail didn’t wag the dog.”

Musk said he was motivated to start OpenAI to serve as a counterweight to Google. He got the idea after an argument he had with Google co-founder Larry Page, who called Musk a “speciesist for being pro-human,” he testified.

“I could have started it as a for profit and I chose not to,” Musk said on the stand.