gpt-5-nano

• Secure and managed by Microsoft: Purchase and manage models directly through Azure with a single license, consistent support, and no third-party dependencies, backed by Azure's enterprise-grade infrastructure.
• Streamlined operations: Benefit from unified billing, governance, and seamless PTU portability across models hosted on Azure - all part of Microsoft Foundry.
• Future-ready flexibility: Access the latest models as they become available, and easily test, deploy, or switch between them within Microsoft Foundry; reducing integration effort.
• Cost control and optimization: Scale on demand with pay-as-you-go flexibility or reserve PTUs for predictable performance and savings.

About this model

Key model capabilities

• Supports ultra-fast, low-latency use cases
• Now supporting minimal reasoning, a new verbosity setting, and the "customs" tool for raw text output.
• New "allowed tools" tool choice that enables you to specify multiple tools in the tool choice instead of just one
• New "preamble" support, allowing the model to "think" before calling a tool. This is always enabled and controlled through prompting.
• gpt-5-nano supports multimodal inputs, real-time streaming and full tool support for smarter, more dynamic user experiences