OpenAI's Models Are Coming to Google Cloud, Completing a Break From Microsoft Exclusivity

OpenAI is bringing its AI models to Google's cloud, the company said, a notable détente between two companies that have spent years as direct rivals in the AI race. The move will make OpenAI's GPT models available to developers through Google Cloud's model garden and its Antigravity coding tool in the coming weeks, according to OpenAI.

The deal completes a pattern that's been building since spring. Less than six months ago, OpenAI ended Microsoft's exclusive license over its intellectual property. The very next day, Amazon announced it would host OpenAI models on its own cloud. Now Google is getting the same access, meaning OpenAI's technology will run on all three of the largest cloud infrastructure providers rather than being locked to its longtime backer and investor.

For OpenAI, the logic is straightforward: distribution. The company needs to reach enterprise developers wherever they already build, not just on Microsoft's Azure. That matters more than ever as OpenAI tries to grow beyond its consumer roots in ChatGPT and build a real enterprise business — something increasingly important as it courts investors at a $1.4 trillion valuation ahead of a planned IPO.

In a blog post, OpenAI credited Google Cloud's track record in AI infrastructure as a draw, saying the platform "has made it a destination for AI workloads and the developers and data scientists building them."

A rivalry with a complicated history

The history between these two companies is layered. OpenAI was founded in 2015 in part as a counterbalance to the concentration of AI research power at companies like Google. Then, in a twist that's become one of the more cited ironies in tech, Google researchers published the Transformer paper in 2017 — the academic breakthrough that underpins virtually all modern large language models. OpenAI was the company that turned that research into a mainstream product, launching ChatGPT and setting off the current AI boom.

The two companies have already worked together once before this. Last year, OpenAI disclosed it was using Google's cloud to help run ChatGPT and its API, a sign that competitive tension hadn't stopped OpenAI from using Google's infrastructure when it made sense.

Google's cloud momentum

The timing lines up with a strong stretch for Google Cloud. Annualized revenue growth in the segment jumped to about 82% in the second quarter, up from 63% in the first, driven partly by demand for AI models and Google's custom chips. That outpaces its two biggest rivals: Amazon and Microsoft posted second-quarter cloud growth of 37% and 42%, respectively. All three companies report quarterly earnings next week, which should offer a clearer read on how the AI spending race is shifting.

Google has also been pushing its own models harder. In September, the company announced its next-generation Gemini 4 Argon model, part of an effort to compete directly with OpenAI rather than simply host its rival's technology. Still, data from corporate card issuer Ramp shows that most business spending on AI currently goes to OpenAI and Anthropic, even as some corporate IT departments have started integrating Google's Gemini models into their own systems.

That dynamic helps explain why Google is willing to host a competitor's models on its own infrastructure: cloud revenue from running OpenAI's workloads is valuable regardless of whose chatbot ultimately wins market share. For OpenAI, meanwhile, spreading across Microsoft, Amazon and now Google reduces its dependence on any single infrastructure partner at a moment when reliability and scale matter enormously to its enterprise ambitions.

What happens next will likely show up in those earnings reports next week, as investors look for signs of how AI workloads are being divided among the big three cloud providers — and how much of that growth is coming from deals like this one.