Open WebUI vs Microsoft 365 Copilot

A side-by-side comparison to help you choose the right tool.

Open WebUI scores higher overall (86/100)

But the best choice depends on your specific needs. Compare below.

Pricing
Open-source software; hosting and infrastructure are your responsibility.
Free plan
Yes
Best for
Teams wanting a self-hosted chat UI quickly, Users running local models through Ollama or APIs, Admins who want a friendlier front end for model access
Platforms
web, linux, mac, windows
API
Yes
Languages
en
Pricing
Starts from about $30/user/month for business offerings, with personal bundles also available in Microsoft 365 consumer plans.
Free plan
No
Best for
Organizations already standardized on Microsoft 365, Knowledge workers living in Outlook, Word, PowerPoint, and Teams, IT-led deployments that need enterprise controls
Platforms
web, windows, mac, ios, android
API
Yes
Languages
en

Choose Open WebUI if:

  • You are Teams wanting a self-hosted chat UI quickly
  • You are Users running local models through Ollama or APIs
  • You are Admins who want a friendlier front end for model access
  • You want to start free
Read Open WebUI review →

Choose Microsoft 365 Copilot if:

  • You are Organizations already standardized on Microsoft 365
  • You are Knowledge workers living in Outlook, Word, PowerPoint, and Teams
  • You are IT-led deployments that need enterprise controls
Read Microsoft 365 Copilot review →

FAQ

What is the difference between Open WebUI and Microsoft 365 Copilot?
Open WebUI is an open-source web interface for using local or remote models with features like rag, admin controls, and multi-model access. Microsoft 365 Copilot is microsoft's work-focused ai assistant embedded across microsoft 365 apps and enterprise workflows.
Which is cheaper, Open WebUI or Microsoft 365 Copilot?
Open WebUI: Open-source software; hosting and infrastructure are your responsibility.. Microsoft 365 Copilot: Starts from about $30/user/month for business offerings, with personal bundles also available in Microsoft 365 consumer plans.. Open WebUI has a free plan.
Who is Open WebUI best for?
Open WebUI is best for Teams wanting a self-hosted chat UI quickly, Users running local models through Ollama or APIs, Admins who want a friendlier front end for model access.
Who is Microsoft 365 Copilot best for?
Microsoft 365 Copilot is best for Organizations already standardized on Microsoft 365, Knowledge workers living in Outlook, Word, PowerPoint, and Teams, IT-led deployments that need enterprise controls.