Amazon is in early-stage talks to invest as much as $50 billion (£40bn) in OpenAI, in what would be one of the largest private technology investments ever made. If completed at the upper end, the investment would make Amazon the single largest backer in OpenAI’s latest fundraising round. This month it signed a $10 billion deal with Cerebras, an emerging competitor to Nvidia, whose chips currently power much of OpenAI’s AI infrastructure. The potential Amazon investment is part of a wider funding scramble. Amazon declined to comment on the reports, and OpenAI did not immediately respond to a request for comment.