A legal battle between Apple and OpenAI over the ChatGPT-maker's secretive device project escalated this week when the artificial intelligence (AI) developer called the iPhone-maker's allegations "baseless" and asked for the lawsuit's dismissal. Apple sued OpenAI last month in San Jose, California, accusing the AI company of orchestrating a campaign to steal the iPhone maker's trade secrets via former employees as it tries to develop its own consumer hardware device.