OpenAI raised $6.6 billion in new funding, giving it a massive post-money valuation of $157 billion. Investors include Microsoft and Nvidia.

The funding anoints the artificial intelligence company as one of the most highly valued start-ups of all time, suggesting its backers expect OpenAI’s chatbot to become much more widely used and to haul in huge profits. Yet the new financing comes on the ...

OpenAI, the maker of ChatGPT, has raised $6.6bn in its latest funding round, as investors including its early backer Microsoft continue to bet big on artificial intelligence (AI). The deal gave the tech company a value of $157bn (£118bn) - similar to investment bank Goldman Sachs and more than most of America's biggest companies - making it one of the most valuable start-ups in the world.

The ChatGPT maker has secured $6.6 billion in funding, but it still has to overcome challenges around the hight costs of developing smarter AI models.

On Wednesday, OpenAI closed one of the largest fundraising rounds in history, valuing the company at $157 billion, up from $86 billion a little more than six months ago. But as OpenAI races to build a large,

Events this week highlight the vivid contrast in attitudes around the potential of AI. Yesterday, OpenAI raised $6.6 billion from investors like Microsoft, Thrive Capital, and SoftBank. That gave the startup behind ChatGPT a $157 billion valuation and gave the market a clear indication of the excitement among those in the know.