OpenAI trial live updates: Opening arguments in Musk v. Altman lawsuit set to begin ○ found 2026 › Apr › 28 (Tue) @ 13:28 UTC a story from CNBC ⚠️ › Top News OpenAI ■■■ Musk ■■ Altman ■■ Elon ■■ Sam Altman ■■ Greg Brockman ■■ preview sentiment