Which OpenAI models are available through Google Cloud?

Google Cloud is adding GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna to Model Garden. Astra is OpenAI's top-tier model, Sol targets cost-performance users, and Luna is a lightweight model.

Are my prompts and data used for training?

Google Cloud says customer prompts, context and model outputs stay within the specified boundary and are not used for model training. A zero data retention (ZDR) option is also coming soon.

Can any customer use these models now?

No. The three models are first being offered as a private preview to select enterprise customers, with more models to be rolled out over time.

Large Language ModelsAI Business & IndustryITmedia AI＋3m agoOct 22, 2026, 10:01 JST

Google Cloud adds GPT-6 Astra to Model Garden

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3 Key Points

What happened
Google Cloud added OpenAI's GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna to Model Garden, first as a private preview for select enterprise customers, with more models to follow.
Why it matters
The move lets customers consolidate procurement, billing and management of these models under Google Cloud, while prompts, context and outputs stay within the customer's designated boundary and are not used for training.

WHO IT HITSEnterprise IT and procurement teams that want to use OpenAI's frontier models while keeping cloud spending and governance consolidated under Google Cloud may find this simplifies vendor management, though the offering is initially limited to select private-preview customers.

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Context & Analysis

Google Cloud is positioning the expansion of Model Garden as a first: it says it is the only hyperscaler where customers can use closed models from all three major AI labs. Until now, customers could reach OpenAI's models through Google Cloud via API, but adding them to Model Garden changes the practical arrangement. The models now run on Google Cloud infrastructure, and procurement, billing and management can be consolidated there.

The company also addressed data handling directly, saying customer prompts, context and model outputs remain within the designated boundary and are not used for training, with a zero data retention option to follow soon. The rollout is staged: GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna are available first as a private preview for select enterprise customers, and Google Cloud says more models will follow.

FAQ

Which OpenAI models are available through Google Cloud?: Google Cloud is adding GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna to Model Garden. Astra is OpenAI's top-tier model, Sol targets cost-performance users, and Luna is a lightweight model.
Are my prompts and data used for training?: Google Cloud says customer prompts, context and model outputs stay within the specified boundary and are not used for model training. A zero data retention (ZDR) option is also coming soon.
Can any customer use these models now?: No. The three models are first being offered as a private preview to select enterprise customers, with more models to be rolled out over time.

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