GPT Store vs Microsoft 365 Copilot Agent Store

GPT Store lets signed-in ChatGPT users browse and use GPTs, versions of ChatGPT configured for specific purposes. The Store features partner and community GPTs in categories including writing, research, programming, education, and lifestyle; users can also open GPTs through direct links or workspace settings. A GPT can include instructions, conversation starters, uploaded reference files, and capabilities such as web search or image generation. It can connect to outside services through apps or external API actions, but cannot use both in the same GPT. GPTs are designed to work in ChatGPT and cannot be embedded in an external website or application. Each conversation starts without saved memory, custom instructions, or earlier conversations. Builders cannot view individual conversations. If a GPT uses an app or external API, relevant input may go to that service, whose data handling OpenAI does not audit or control. Personal Free, Go, Plus, and Pro accounts cannot publish new GPTs; workspace publishing depends on settings and permissions. Free access is listed, with limits on messages, uploads, image creation, and voice chats. OpenAI says retirement is planned for affected Enterprise workspaces on December 11, 2026.

Microsoft 365 Copilot Agent Store is a subscription service for finding agents for Microsoft 365 Copilot. Its listed agent types include ready-to-use and declarative agents, custom engine agents, Copilot Studio, SharePoint, and connectors. Agents can be installed through the store, Microsoft Teams, Outlook, Word, Excel, PowerPoint, or Microsoft Marketplace; publishing access is reviewed. The service is available on Android, iOS, macOS, web, and Windows. Microsoft 365 Copilot Business costs $21 a month, billed yearly, for up to 300 users. Microsoft 365 Business Standard with Copilot costs $23.50 a month, billed yearly, for up to 300 users and includes 1 TB of cloud storage per user. Microsoft 365 Business Premium with Copilot costs $32 a month, billed yearly, for up to 300 users and also includes 1 TB per user. Each listed annual subscription auto-renews. Microsoft was founded in 1975 and is headquartered in Redmond, Washington, USA.