OpenAI brings GPT-6 Astra, Sol, Luna and Codex to Google Cloud in private preview

OpenAI and Google Cloud said on 21 October 2026 that OpenAI's frontier models and its Codex coding agent are coming to Google Cloud's Model Garden. In its post, Google said GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna are rolling out now in private preview to select enterprise customers. OpenAI's own announcement says general availability is planned in the coming weeks.

Customers will buy the models through Google Cloud Marketplace, and companies with Google Cloud spending commitments can count those purchases against them. Google says all usage lands on one Google Cloud invoice. Developers can already point their local Codex command-line and app workflows at Google's platform for inference, and the models are due soon in Google Antigravity and the Gemini Agent.

Key facts

• Primary: Google Cloud and OpenAI, 21 October 2026
• Independent: CNBC and The Next Web, 21 October 2026
• Models: GPT-6 Astra for demanding coding, computer use and research work; GPT-6.1 Sol for near-Astra results at lower cost; GPT-6 Luna for fast, cheap everyday tasks
• Access: private preview now, wider release in the coming weeks
• Data: Google says prompts and outputs stay inside the customer's data perimeter and are not used for training, according to The Next Web
• Microsoft: OpenAI says Microsoft remains its primary cloud partner

How to read it

This is about distribution, not a new model. The Next Web notes that Amazon Web Services began hosting OpenAI's models in April, after Microsoft's exclusive license ended, so OpenAI is now on all three of the biggest US clouds. Google now says it is the only hyperscale cloud offering all three leading closed model families, since it already sells Anthropic's Claude next to Gemini. For companies already committed to Google Cloud, the main change is that they can try OpenAI's models without a separate contract. Neither company has given an exact date for general availability.

Independence

Frontier Flux is not affiliated with OpenAI, Google, CNBC or The Next Web. Details come from the two company posts and that reporting, not from our own testing of the service.