Microsoft\'s free consumer AI assistant, accessible at copilot.microsoft.com in any browser, via the Copilot desktop/mobile apps, or in the Edge sidebar. Supports AI chat for writing, brainstorming, and summarization; web-grounded answers with real-time search; image generation; and voice interaction (with a personal account, chat history and longer conversations are also available). No subscription required; usage is subject to service capacity and feature-specific limits (Microsoft does not publish a fixed daily prompt count). Note: this is the free consumer Copilot; Copilot deeply integrated into Word, Excel, Outlook, and other Microsoft 365 desktop apps requires an eligible Microsoft 365 subscription.