OpenAI’s investors include Silicon Valley’s most prolific bubble-chasers. Is that a bad sign for the company’s future?

• OpenAI raised $6.6 billion in a deal that values the company at more than $150 billion
• Investors include Nvidia, Thrive Capital, and an investment firm backed by the United Arab Emirates.
• Also among the backers are SoftBank, Tiger Global, and Ark Venture fund, which all have a track record of investing at the top.

OpenAI has officially closed a historic funding round. The company raised $6.6 billion in a deal that valued the company at more than $150 billion and brought a slew of high-profile investors, including Nvidia, Thrive Capital, and MGX, an investment firm backed by the United Arab Emirates.