GPT-6 Astra Lands on Google Cloud, but Microsoft Keeps the Crown
On October 21, 2026, OpenAI announced a partnership with Google Cloud: frontier models plus the Codex agent workflow are coming to Google Cloud Model Garden, enterprise purchases can draw down GCP spend commitments, and general availability is planned in the coming weeks. Google Cloud's blog names three models - GPT-6 Astra, GPT-6.1 Sol, and GPT-6 Luna, all in private preview - and calls Google Cloud the only hyperscale cloud provider offering access to all three leading closed source LLMs. Astra pricing is public on the API side: 10 dollars per million input tokens, 50 dollars output, a 1.05M context window, 128K max output, valid through April 30, 2026; Google-channel pricing is unpublished. Sol is the low-cost tier from DevDay on September 29 (2/10 dollars, about a fifth of Astra, officially pitched as near-Astra performance for complex work). Microsoft relations carry an explicit official caveat: the OpenAI post closes with Microsoft remains OpenAI's primary cloud partner, so this is not a defection. Media caliber (Reuters/CNBC): Microsoft's exclusive distribution expired in April, AWS followed a day later, Google completes the trifecta; Anthropic drew 47 percent of its 2025 revenue from AWS and Google per IPO filings; Google Cloud grows about 82 percent, fastest of the three. Naming lineage: the internal Astra that solved ten decade-old math problems in August with Lean-verifiable proofs is widely linked by media but never officially equated to GPT-6 Astra. Unpublished: parameter count, Google-channel pricing, exact GA date, open weights (API and enterprise hosting only).