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OpenAI Models Come to Google Cloud: What's Included

Nitish Garg · Founder & CEO, CellCog · 21 October 2026 · 4 min read · 840 words
At a glanceQuick answers
What changed?
Google Cloud customers can use OpenAI’s newest models inside Model Garden and pay for them on their Google Cloud bill.
Can anyone use it today?
No. It is a private preview for select enterprise customers, with general availability planned in the coming weeks.
Does it cost the same as OpenAI's API?
Unknown. Google says usage counts toward commitments and Flexible Savings Plans but published no per-token rates.
Data illustration on a near-white ground: one teal model block sends three lines to three cloud shapes labelled Azure, Oracle and Google Cloud, the Google Cloud line in amber, beside the large text Oct 21
Fig 0One model family, a third cloud. Made by CellCog's image agent, running GPT Image 2.5.

OpenAI’s newest models are coming to Google Cloud: GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna started rolling out in private preview in Google Cloud’s Model Garden on October 21, 2026, billed through Google Cloud Marketplace. OpenAI’s announcement says Codex comes too, general availability is planned in the coming weeks, and one line closes it: “Microsoft remains OpenAI’s primary cloud partner.”

This page reads OpenAI’s post, Google Cloud’s own announcement and OpenAI’s API price list.

Key points5 · 4 min full read
  1. One block linked to three clouds.
    OpenAI and Google Cloud announced on October 21, 2026 that OpenAI’s frontier models and Codex are coming to Google Cloud’s Model Garden.
  2. Three stacked cards with one highlighted.
    GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna are rolling out in private preview to select enterprise customers; OpenAI plans general availability in the coming weeks.
  3. An invoice with a coin.
    Usage is billed through Google Cloud Marketplace on one Google invoice and draws down existing Google Cloud commitments.
  4. A price tag with a question mark.
    Neither company published Google-side prices; OpenAI’s own API lists Sol at $2.00 input and $10.00 output per million tokens.
  5. A calendar with three marked days.
    OpenAI says Microsoft remains its primary cloud partner; Microsoft’s exclusive license ended in April 2026, and Oracle customers got access in June.

§ 01What is in the preview

Model Google’s description Input Cached input Output
GPT-6 Astra Demanding work: coding, computer use, science $10.00 $1.00 $50.00
GPT-6.1 Sol Near-Astra intelligence at lower cost $2.00 $0.10 $10.00
GPT-6 Luna Fast, cost-efficient everyday work $0.10 $0.01 $0.50
Table 1OpenAI models on Google Cloud (Google Cloud blog; prices are OpenAI’s own API list, standard short context, per million tokens, read October 21, 2026)
OpenAI API output price per million tokens, standard short context, Oct 21, 2026Bar chart: GPT-6 Astra 50 dollars, GPT-6.1 Sol 10, GPT-6 Luna 0.5 per million output tokens, with Sol highlightedGPT-6 Astra50GPT-6.1 Sol10GPT-6 Luna0.5OpenAI API output price per million tokens, standard short context, Oct 21, 2026Bar chart: GPT-6 Astra 50 dollars, GPT-6.1 Sol 10, GPT-6 Luna 0.5 per million output tokens, with Sol highlightedGPT-6 Astra50GPT-6.1 Sol10GPT-6 Luna0.5
Fig 1OpenAI API output price per million tokens, standard short context, Oct 21, 2026

The prices above are OpenAI’s direct API rates. Neither announcement lists what Google Cloud will charge per token, so treat parity as unconfirmed until Model Garden publishes rates. Google also says developers can point their local Codex CLI and Desktop workflows at its Gemini platform for inference.

§ 02How buying works

  • One bill. Google says OpenAI usage appears on a single Google Cloud invoice.
  • Commitments count. Purchases draw down existing Google Cloud spend commitments and count toward Flexible Savings Plans across model providers.
  • Governance claims. Prompts and outputs stay inside the customer’s data perimeter and are not used for training; Zero Data Retention and Confidential Compute are both listed as coming soon, not shipped.
  • More surfaces later. OpenAI says its models will soon be available in Google Antigravity and the Gemini Agent; Google’s post names Gemini for business. Neither gives a date.
Animation: a Google Cloud invoice fills with Gemini and Claude rows, then Astra, Sol and Luna rows in amber, while a commitment bar beside it drains to about half
Fig 2OpenAI usage lands on the same Google invoice and spends the same commitment

Google’s headline claim is that it is “the only hyperscale cloud provider offering access to all three leading closed source LLMs,” meaning OpenAI’s models now sit beside Gemini and Claude in one catalog.

§ 03How OpenAI got here

Date Event Source
April 27 Microsoft’s license to OpenAI’s technology becomes non-exclusive Microsoft blog
June 10 Oracle customers can buy OpenAI models and Codex with Oracle credits OpenAI
October 21 Astra, Sol and Luna in private preview on Google Cloud OpenAI, Google Cloud
Table 2OpenAI’s route to other clouds (primary sources, 2026)

Microsoft’s April announcement is what made this possible. Today’s post keeps Microsoft as primary partner while OpenAI adds distribution where enterprise budgets already sit. Greg Brockman put the aim plainly: making “our most capable models and Codex available where customers are already building.”

Animation: an OpenAI models block linked to Azure; at Apr 27 the exclusive tag gives way to a primary tag, at Jun 10 a line reaches Oracle, at Oct 21 an amber line reaches Google Cloud
Fig 3Exclusive to Azure until April, then Oracle in June and Google Cloud in October

§ 04What it means for teams choosing models

For a company already committed to Google Cloud, the change is procurement more than technology: OpenAI models become something you can buy without a new vendor contract. For everyone else, it is one more sign that frontier models are becoming interchangeable parts across clouds, and that the choice that matters is the system you put around them. CellCog makes that choice for you: every tier runs on Claude Opus 5.5, and each AI employee works on its own secure VM and file system.

§ 05What to watch

  • Google Cloud’s per-token rates for the three models, and whether they match OpenAI’s.
  • General availability, which OpenAI puts in the coming weeks.
  • The Antigravity and Gemini Agent integrations, and when Zero Data Retention ships.
Frequently asked5 questions

Q1Which OpenAI models are on Google Cloud?

GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna, rolling out in private preview in Google Cloud’s Model Garden from October 21, 2026, per Google’s announcement.

Q2How are OpenAI models billed on Google Cloud?

Through Google Cloud Marketplace. Usage appears on one Google Cloud invoice, draws down existing cloud commitments and counts toward Flexible Savings Plans.

Q3Is Microsoft still OpenAI's cloud partner?

Yes. OpenAI’s announcement says Microsoft remains its primary cloud partner. Microsoft’s license became non-exclusive in April 2026, which opened the door to other clouds.

Q4Will OpenAI models appear in Antigravity and the Gemini Agent?

OpenAI says soon, without a date. Google’s post names Antigravity and Gemini for business.

Q5Does CellCog use OpenAI models?

No. Every CellCog tier runs on Claude Opus 5.5, with each AI employee on its own secure VM and file system.

Published 21 October 2026 All Multi-agent & AI organizations →