GPT-6 Astra, OpenAI’s newest frontier model, has begun rolling out on Microsoft Foundry through the Limited Access Program, with availability expanding to participating customers in the days following the announcement.

How the rollout works

flowchart LR
    A[OpenAI releases GPT-6 Astra] --> B[Rollout on Microsoft Foundry]
    B --> C[Limited Access Program]
    C --> D[Availability expands to participating customers]

Context: optimizing the cost of agents

In the same period, Azure published the “The Economics of Agent Optimization” series, focused on how context engineering in Microsoft Foundry helps lower AI costs by improving knowledge retrieval, tool selection, memory, and agent performance at scale.