Microsoft has turned on GPT-5 across the Copilot ecosystem—and, crucially, is extending free access to the new model via a “Smart mode” in the Copilot web experience—marking the broadest, fastest rollout of an OpenAI flagship yet across Windows and Microsoft 365. The update landed on August 7 with parallel announcements from OpenAI and Microsoft, and it covers consumer Copilot, Microsoft 365 Copilot, Azure AI Foundry, and GitHub Copilot. Early access appears in a phased rollout, but the core...