Elon Musk said Tuesday his social media platform X is working to fix its AI chatbot, Grok, after it sided with rival tech chief and OpenAI CEO Sam Altman in an ongoing dispute with Musk, who threatened to sue Apple on Monday night over allegations it favors OpenAI in its app store.

Musk, who has been at loggerheads with Altman since their fallout after co-founding OpenAI, reacted strongly to Grok's response. He criticized the platform for allowing false defamatory statements about him. The incident highlights the challenge of maintaining neutrality in AI chatbots like Grok.

Elon Musk is turning to ChatGPT to adjudicate his long-running feud with Sam Altman. Musk posted a screenshot of a query to ChatGPT 5 Pro on Tuesday, asking whether he or Altman was "more trustworthy.