Court filing: OpenAI says Elon Musk's recent amendments to his OpenAI lawsuit are a "legal ambush", calling them "legally improper and factually unsupported" (Robert Burnson/Bloomberg)

Robert Burnson / Bloomberg: Court filing: OpenAI says Elon Musk's recent amendments to his OpenAI lawsuit are a “legal ambush”, calling them “legally improper and factually unsupported” — OpenAI says Elon Musk has suddenly changed direction on what he's seeking in his lawsuit against the startup in a …