GPT-5.5 in Microsoft Foundry for Enterprise AI
Summary
Microsoft is making OpenAI GPT-5.5 generally available in Microsoft Foundry, giving Azure customers a new frontier model designed for long-context reasoning, agentic execution, and lower token usage. The update matters for enterprises because Foundry adds the security, governance, identity, and deployment controls needed to run production AI agents at scale.
Introduction
Microsoft is bringing OpenAI's GPT-5.5 to Microsoft Foundry, expanding Azure's enterprise AI platform with a model built for more reliable reasoning, agent execution, and production-scale efficiency. For IT leaders, developers, and platform teams, the bigger story is not just model access—it is the ability to operationalize advanced AI with governance, identity, and security built in.
What's new with GPT-5.5 in Microsoft Foundry
GPT-5.5 becomes generally available in Microsoft Foundry, alongside a premium GPT-5.5 Pro option for more demanding workloads.
Key improvements highlighted by Microsoft include:
- Deeper long-context reasoning for large documents, codebases, and multi-session work
- More reliable agentic execution for multi-step tasks and professional workflows
- Improved computer-use accuracy when interacting with software interfaces
- Better token efficiency to reduce cost and latency at scale
- Stronger support for coding, research, document creation, and analysis
Microsoft positions GPT-5.5 for scenarios where precision matters, including software engineering, DevOps, legal, health sciences, and professional services.
Why Foundry matters for enterprises
Microsoft Foundry is the platform layer that helps organizations move from AI experiments to governed production use. Rather than just exposing a model endpoint, Foundry provides:
- Enterprise-grade security, compliance, and governance
- Broad model choice and interoperable agent frameworks
- Integration with enterprise systems and productivity tools
- Easier evaluation, deployment, and scaling of new models
Microsoft also emphasized Foundry Agent Service as the operating environment for running agents at scale. Hosted agents can run in isolated sandboxes with:
- A persistent filesystem
- A distinct Microsoft Entra identity
- Scale-to-zero pricing
- Support for frameworks such as LangGraph, OpenAI Agents SDK, Claude Agent SDK, Microsoft Agent Framework, and GitHub Copilot SDK
Pricing at a glance
Microsoft published token pricing for both models:
- GPT-5.5: $5/M input, $0.50/M cached input, $30/M output
- GPT-5.5 Pro: $30/M input, $3/M cached input, $180/M output
Impact on IT administrators and platform teams
For Azure and AI platform admins, this release means more choices for production AI workloads without giving up enterprise controls. Teams can standardize how agents are deployed, secured, and managed while supporting multiple frameworks and identities through Foundry.
Developers also benefit from a clearer path to production, especially for use cases involving coding assistants, research agents, and workflow automation.
Next steps
If your organization is already testing AI agents on Azure, now is the time to:
- Evaluate GPT-5.5 for high-precision workflows
- Review Foundry Agent Service for secure hosted agent deployment
- Compare token costs against current model usage
- Validate governance, identity, and compliance requirements before wider rollout
For enterprises moving beyond pilots, GPT-5.5 in Microsoft Foundry looks like a significant step toward scalable, governed agentic AI in production.
Need help with Azure?
Our experts can help you implement and optimize your Microsoft solutions.
Talk to an ExpertStay updated on Microsoft technologies