Elon Musk's $97.4bn (£78.7bn) bid for OpenAI is part of a long-running feud between the pair, who co-founded OpenAI as a non-profit entity for the benefit of humanity.
OpenAI CEO Sam Altman rejected a potentially seismic deal that could shape the future of artificial intelligence, telling the Elon Musk-led group of investors that the ChatGPT maker is not for sale.