Sam Altman, OpenAI's chief executive, said in court papers that Mr. Musk had "no facts" to support his claim that OpenAI was illegally suppressing competition. "There are no facts to support the existence of such a conspiracy," Mr. Altman's lawyers wrote to a federal judge in Oakland, California, in a 33-page court filing. Nor has Mr. Musk proved he suffered any harm as a result of OpenAI's alleged anti-competitive behaviour, the lawyers argued. Mr. Musk's 107-page lawsuit accuses Altman of fraud, self-interest and "unfair competition." "He claims that without judicial intervention, he will suffer irreparable harm, without providing a reasonable explanation of how or why," Jordan Eth, an attorney for Altman, wrote in Wednesday's filing. The filing was Altman's response to Musk's request that U.S. District Judge Yvonne Gonzalez Rogers order an immediate halt to what Musk called OpenAI's unfair and illegal restrictions on its competitors. Musk wants Gonzalez Rogers to immediately block OpenAI's transformation from a nonprofit to a for-profit entity, and also wants a judge to bar OpenAI from forcing its investors not to invest in competing tech companies, including Grok, a chatbot developed by Musk's own artificial intelligence company xAI.