Read the email to Satya Nadella and Bill Gates that shows Microsoft's CTO was 'very worried' about Google's AI progress in 2019

• Microsoft's OpenAI investment may have been prompted by concerns over Google's AI progress.
• In a 2019 email, a Microsoft exec said he was "very, very worried" about Google's AI capabilities.
• The emails were made public as part of the Department of Justice's antitrust case against Google.

In 2019, Microsoft became "very, very worried" about Google's capabilities in artificial intelligence, newly unearthed emails show, and that may have been what spurred it to invest in OpenAI.