OpenAI filed a countersuit against Elon Musk on Wednesday, saying on X that “Elon’s nonstop actions against us are just bad-faith tactics to slow down OpenAI and seize control of the leading AI innovations for his personal benefit.

OpenAI was co-founded by Musk and Altman in 2015. Musk left OpenAI in 2018 and now alleges that the company has abandoned its founding mission to develop AI for the benefit of humanity, and is therefore in breach of contract. He first launched his suit in early 2024, before dropping it in June and re-filing in August last year.

OpenAI is suing Elon Musk for unfair competition and interfering with its business relationships with investors and customers, escalating a legal battle between the ChatGPT maker and the billionaire w