OpenAI has filed a countersuit against Elon Musk, escalating their ongoing legal conflict. The tech firm accused Musk of harassment and asked the court to prevent him from taking further “unlawful and unjust actions” against the company. Musk co-founded OpenAI with Sam Altman in 2015 but left in 2018. After launching xAI in 2023, Musk has been accused of attempting to block OpenAI from becoming a for-profit entity. He previously sued OpenAI to halt changes to its corporate structure.