(Reuters) -Elon Musk’s artificial intelligence startup xAI has sued a former engineer at the company for allegedly stealing trade secrets related to its Grok chatbot and taking them to rival OpenAI. Musk’s company said in the complaint filed on Thursday in California federal court that Xuechen Li stole confidential information related to “cutting-edge AI technologies with features superior to those offered by ChatGPT” to bring to his new job at OpenAI earlier this month.