Why Microsoft Bet $130B on OpenAI: Inside the AI Rivalry with Google

Microsoft’s relationship with OpenAI has become deeply intertwined, with CEO Satya Nadella publicly supporting OpenAI CEO Sam Altman even during board turmoil.

Internal dissatisfaction grew as some Microsoft staff felt the company had become “an IT department for OpenAI,” prompting several senior departures.

During a U.S. Department of Justice antitrust case against Google, a 2019 internal Microsoft email from CTO Kevin Scott to Bill Gates and Satya Nadella was disclosed. Titled “Thoughts on OpenAI,” the email warned that Google was far ahead in machine‑learning scale and urged investment in OpenAI.

“In terms of machine‑learning scale, we are years behind our competitors.”

Scott detailed how Microsoft engineers spent six months recreating Google’s BERT model, concluding that Microsoft’s infrastructure could not support such efforts.

The email also highlighted Google’s strong search capabilities, including advanced Gmail autocomplete on mobile, and warned that Microsoft might need many years to catch up.

Subsequently, Microsoft committed $10 billion to OpenAI, bringing its total investment to over $130 billion and integrating OpenAI models into Azure, Office, Bing, Edge, and Windows.

The European Union briefly investigated whether Microsoft’s funding gave it control over OpenAI, but later dropped the probe.

Nadella has positioned AI and security as Microsoft’s top priorities for 2024, emphasizing that the partnership aims to accelerate AI breakthroughs rather than merely keep pace with Google.

Leaks of the email have fed speculation about a new ChatGPT‑powered search engine. A discovered SSL certificate for search.chatgpt.com and online chatter suggest a possible launch around May 9, potentially challenging Google’s dominance.

Overall, Microsoft’s strategic investment reflects a concerted effort to leverage OpenAI’s technology to compete with Google across search and broader AI services.