Elon Musk has intensified his legal battle against OpenAI, the AI firm he co-founded, by including Microsoft in a revised lawsuit. Musk accuses both companies of monopolistic practices that threaten competition in the AI sector. The lawsuit alleges that OpenAI has deviated from its original non-profit mission, becoming a $157 billion for-profit entity. OpenAI dismissed Musk’s claims as ‘baseless’ and pointed to previous communications to counter the accusations. The latest filing also names Reid Hoffman, LinkedIn co-founder, as a defendant in the case.