OAKLAND, April 28 -- Elon Musk's courtroom showdown with Sam Altman got underway here Monday with the selection of jurors entrusted to decide whether the co-founders of OpenAI betrayed a mission to build artificial intelligence for the good of humanity, not for money.

The legal clash in a courtroom across the bay from San Francisco pits Musk, the world's richest person, against a startup he once backed and now competes with in the booming AI sector.

OpenAI's ChatGPT is a formidable rival to the chatbot Grok, made by Musk's xAI lab.

"This is a tech soap opera that all investors will be watching," Wedbush analyst Dan Ives said in a note to investors.

"There will be a lot of dirt and slings thrown around in court between Musk and Altman ...