Starting today, Microsoft Copilot Studio users will have access to GPT-5, OpenAI’s best generative AI system that was introduced this morning. With this release, we are also introducing support in Copilot Studio for you to choose your agent’s model for generative answers and orchestration from a curated set optimized by Microsoft. Bringing GPT-5 to Microsoft 365 Copilot and Copilot Studio on the day of its release reflects our broader dedication to enabling our customers to stay cutting edge while maintaining the security and support benefits of their Microsoft environment.
One unique benefit of using the GPT-5 system is that it enables your agent to utilize your instructions and prompts as a guide for selecting the ideal model using GPT-5’s real-time router for each task or response.
- For simple or routine prompts and instructions, GPT-5’s high-throughput model for chat is used, prioritizing speed and straightforward responses.
- For complex or more open-ended agent steps, GPT-5’s deeper reasoning model will be used, taking its time to craft a plan, gather and comprehend all relevant context, and check its work before providing a thorough response.
GPT-5 to orchestrate your agents and summarize answers
An agent’s orchestration model powers how it interprets instructions, generates a plan, uses tools, and responds with generative answers. Smarter orchestration means sharper agents. With GPT-5, agents built in Copilot Studio have sharper reasoning in ambiguous situations to determine the right next step, increased coherence in multi-turn conversations, and stronger instruction following, all of which improve overall agent performance.
From today, makers building agents in early release cycle environments will see a new option to pick their agent’s model in the settings page. If makers select GPT-5 Auto, then the agent will use GPT-5’s real-time router to choose the right model, either GPT-5’s high-throughput model or the deep reasoning model, allowing the agent to self-select the right balance of speed and planning. Alternatively, makers can select GPT-5 Reasoning to ensure that the agent primarily uses the deep reasoning model for complex scenarios.
GPT-5 to power your agent’s tools
Tools are a key ingredient in enabling agents to address business processes, and custom prompts are one of the most flexible tools in Copilot Studio’s agent-building toolbox. Custom prompts let makers apply AI models with specific instructions to complete sub-tasks like creating a document in a specific format based on all the information gathered so far or extracting an invoice number from many uploaded invoices.
Now, makers creating custom prompt tools for agents in early release cycle environments will see GPT-5’s high-throughput model and the deep reasoning models as options to use. With longer context support and improved document understanding, custom prompts using the high-throughput model will offer natural, context-aware responses with faster response times. Using the multi-step logic of GPT-5’s deep reasoning model, prompts complete complex tasks like planning and analysis with increased accuracy.
Get started today
With GPT-5 in Copilot Studio, not only are you able to use a cutting-edge AI system, but you also benefit from Copilot Studio’s ongoing optimizations, like agent-specific fine tuning, GPU infrastructure management on a global scale, and simple ways to upgrade existing agents to new models, in addition to having the flexibility of being able to bring your fine-tuned models hosted in the Azure AI Foundry Models.
GPT-5 in Copilot Studio is releasing today as an “experimental” AI system for use in agents built in early release cycle environments, enabling makers to test in new and existing agents. We anticipate moving GPT-5 in Copilot Studio to all environments later this month. Learn more about early release cycle environments and agent model selection. Read more about GPT-5 in Microsoft 365 Copilot.
Microsoft Copilot Studio is an intuitive agent development platform, where users can build agents using natural language. It is a secure, enterprise-ready SaaS platform, uniquely integrated with both the Microsoft ecosystem, including Copilot, and external data vendors. Copilot Studio has a complete set of tools that lets you accelerate building the right agents for your business, helping to multiply capacity, reduce development costs, and increase customer satisfaction—fast.
