X owner Elon Musk criticised OpenAI after a lawsuit claimed that ChatGPT encouraged a man with mental illnesses to kill his mother and himself in the US. Musk said, "This is diabolical. OpenAI’s ChatGPT convinced a guy to do...murder-suicide!" "AI must be maximally truth-seeking and not pander to delusions," added Musk, who also owns an AI platform named Grok.