Sam Altman and Elon Musk, the OpenAI cofounders turned rivals, are locked in a legal battle over the direction of the company.

Elon Musk, the world's richest person, took the stand and testified over the course of three days in his trial against OpenAI CEO Sam Altman.

After days of sparring in a federal courtroom, Sam Altman used a Saturday post on social media to extend a small olive branch to rival Elon Musk, saying Musk "can come if he wants" to a limited OpenAI gathering tied to the May 5 rollout of GPT-5.

Elon Musk and Sam Altman face off in a $150 billion federal trial over whether OpenAI betrayed its nonprofit founding mission, a verdict that could reshape the future of artificial intelligence.

On Thursday, Elon Musk told a California courtroom that he backed OpenAI with millions of dollars under the belief it would remain a nonprofit focused on humanity. Musk Says OpenAI Abandoned Its Original Nonprofit Mission During cross-examination,

Elon Musk finally shared an opinion that a lot of people can agree on: Microsoft should not control the future of AI.

Elon Musk made repeated references to an AI "Terminator" scenario while testifying before a California federal jury about OpenAI's for-profit move.

By Deepa Seetharaman and Kenrick Cai OAKLAND, California, April 30 (Reuters) - Elon Musk wrangled with Sam Altman's lawyer on Thursday over whether he had seen emails and documents discussing turning OpenAI into a for-profit company as he was cross-examined in a trial over a lawsuit brought by Musk that could determine the future of the ChatGPT maker.