Flagship models offered on a rival's cloud
OpenAI and Google Cloud announced a partnership on Oct. 21 (Oct. 22 Japan time). OpenAI's top model "GPT-6 Astra," "GPT-6.1 Sol" for everyday work and the small "Luna" will be offered on a trial basis to some businesses through "Model Garden," Google Cloud's model service for businesses. Availability will be expanded to the general public within a few weeks.
The AI coding tool "Codex" can already be connected to Google's infrastructure. OpenAI's models will also soon be added to Google's development environment "Antigravity" and to "Gemini Agent." OpenAI President Greg Brockman said it was a step toward making its most capable models and Codex available where customers are already building.
Can be bought under Google Cloud contract commitments
Businesses can buy OpenAI's models through Google Cloud's marketplace and apply them toward the spending commitments they have made with Google Cloud. Billing is consolidated into a single Google Cloud invoice. Google says inputs and outputs stay within the boundaries of customers' data and are not used for training. OpenAI's models run on dedicated Google Cloud infrastructure.
Google says it is the only major cloud that offers all of the proprietary models of the three leading companies. In addition to its own Gemini, it already offers Anthropic's "Claude." Google Cloud CEO Thomas Kurian said Google lets customers choose from a broad range of models, including OpenAI's.
On all 3 major clouds
OpenAI's models have also been offered on Amazon's cloud since April, after its exclusive agreement with Microsoft ended. With this deal, they will be available on all three major U.S. clouds. OpenAI says Microsoft remains its primary cloud partner.
Google and OpenAI compete in AI models and search. Mike Leone of U.S. research firm Moor Insights & Strategy noted that Gemini now has to win customers with OpenAI right next door. According to Anthropic's filing to go public, 47% of its 2025 revenue came through the clouds of Amazon and Google.
