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Microsoft Rolls Out GPT-5 Across Entire Copilot Suite, Promising Smarter and Faster AI Responses
Microsoft has integrated OpenAI’s newly unveiled GPT-5 into its full spectrum of AI-driven tools, from Microsoft 365 Copilot and GitHub Copilot to Microsoft Copilot for consumers and Azure AI Foundry. The update brings a new underlying architecture designed to dynamically route requests between models optimized for speed and those built for deep reasoning, aiming to deliver both higher accuracy and improved responsiveness across varied use cases.
Unveiled on Thursday by OpenAI, GPT-5 is being positioned by Microsoft as a leap forward in contextual understanding and task automation. It’s engineered to handle everything from interpreting lengthy, complex prompts to generating complete code solutions or summarizing sprawling documents. The rollout reflects the growing enterprise demand for AI systems that can fluidly shift between quick answers and more sophisticated, multi-step reasoning without requiring manual model selection by the user.
According to Microsoft, GPT-5 is being deployed “into a wide variety of its products, to bring new reasoning capabilities and improvements to coding and chat across its platforms.” In particular, the model is designed to better understand context, respond to long and complex prompts, and handle advanced agentic tasks such as end-to-end code generation and summarization.
A major technical feature in this rollout is the real-time model router, which automatically selects the optimal GPT-5 variant based on task complexity. “Users don't have to think about which model is best for the job,” said Microsoft. This eliminates the need for manual selection or tuning by the user.
Business users of Microsoft 365 will benefit from GPT-5's ability to maintain context over longer interactions, such as summarizing long threads in Outlook or documents in Word, according to the company. The model also improves its ability to track user intent during multi-turn conversations, enhancing its usefulness in daily productivity tasks.
In Microsoft Copilot for consumers, GPT-5 is included in a new Smart mode designed to improve answers for more nuanced or complex questions. This is especially relevant for users working in the Web or mobile versions of Copilot. On the developer side, GitHub Copilot now includes GPT-5 in all paid tiers, supporting longer and more structured coding sessions directly in Visual Studio and VS Code.
For enterprises building their solutions, Azure AI Foundry includes GPT-5 as part of its hosted model catalog. Organizations can deploy the model with built-in governance, privacy, and security controls. The real-time router also ensures cost-efficiency by switching between GPT-5 model types based on performance needs.
GPT-5 includes several model variants: "main," "thinking," and "thinking-nano." The company said each is suited for different task types. The Microsoft AI Red Team conducted internal testing and concluded that GPT-5 showed “one of the strongest AI safety profiles among prior OpenAI models,” with improved safeguards against misuse, such as malware generation and impersonation.