Microsoft has incorporated advanced multi-file analysis capabilities from ChatGPT into its Copilot application for both web and Windows 11 users, providing this feature at no additional cost. Previously, Copilot allowed the upload of up to 20 files per message but processed them individually, lacking the ability to correlate them. Now, leveraging GPT's multi-file support, Copilot can simultaneously read and correlate multiple files, significantly enhancing processing efficiency.