OAKLAND, Calif. (AP) — At the heart of the trial pitting Elon Musk against OpenAI CEO Sam Altman is a moment when they found common cause on an ever more pressing question: how to protect humanity from the risks of artificial intelligence.

OpenAI President Greg Brockman concluded his testimony on Tuesday as the blockbuster trial between the AI startup and Elon Musk rolled into its second week.

In his second day on the stand in the trial he launched against OpenAI, Elon Musk said the AI start-up he'd helped found had strayed from its charitable mission.

From OpenAI's founding to the xAI implosion, a timeline of Elon Musk's decade-long obsession with controlling AI.

"Distillation" is a hot topic as frontier labs try to prevent smaller competitors from copying their models.

Elon Musk on Tuesday testified that his lawsuit against OpenAI and its leaders goes well beyond one company and into the future of a technology that “could also kill us all.”