Microsoft Copilot vs Cabinet: an honest comparison
Microsoft 365 Copilot puts AI across Word, Excel, Outlook, and Teams, tied to your Microsoft Graph and cloud. Cabinet is a knowledge base you own and self-host, with bring-your-own-AI and agents that read and write your files. One is AI inside Microsoft's stack, the other is AI on infrastructure and knowledge you control.
Choose Cabinet if
- You want to own and self-host your knowledge, not deepen reliance on one vendor's cloud.
- You want bring-your-own-AI across providers, not a single bundled model.
- You want agents that persist work to files you keep, with org-wide ownership.
Stick with Microsoft Copilot if
- Your company runs on Microsoft 365 and you want AI inside the apps you already use.
- You want a fully managed assistant grounded in your existing Microsoft Graph and identity.
Open source · self-hosted · bring your own AI
The core difference
Copilot adds AI inside Microsoft. Cabinet is AI on a KB you own.
Microsoft 365 Copilot is excellent if your work lives in Office and Teams: it reasons over your Microsoft Graph and drafts inside the apps. It is bundled, managed, and tied to Microsoft's cloud and model choices.
Cabinet is independent and owned. Your whole knowledge base lives as files you control, you bring your own AI keys across providers, and agents read and write the files on a schedule. Self-host it anywhere.
Copilot makes Microsoft smarter. Cabinet gives you an AI knowledge base that does not depend on one vendor.
Where Cabinet wins
Three things Microsoft Copilot cannot do
Own and self-host your knowledge
Copilot reasons over data in Microsoft's cloud. Cabinet keeps your knowledge base as files you own and run in your own environment, so your most sensitive material never has to leave your walls.
Bring your own AI, any provider
Copilot is tied to Microsoft's bundled model. Cabinet routes to the model accounts you already pay for, across providers, with no bundled inference marked up on top.
Knowledge as files, not locked in Graph
Cabinet's knowledge is plain files you can grep, git, and back up, independent of any one suite, with agents that write back to them on a schedule.
Feature by feature
Cabinet vs Microsoft Copilot, side by side
The features that actually decide this, including the ones where Microsoft Copilot comes out ahead.
| Feature | Cabinet | Microsoft Copilot |
|---|---|---|
| Knowledge you own as filesMicrosoft files live in OneDrive and SharePoint, in Microsoft's cloud. | Included | Partial |
| Self-hosted | Included | Not included |
| Bring your own AI across providers | Included | Not included |
| Agents that act on your files on a schedule | Included | Partial |
| Works without Microsoft 365 | Included | Not included |
| Deep Office and Teams integration | Not included | Included |
| Grounded in enterprise identity and Graph | Partial | Included |
| Visualize web apps and dashboards | Included | Partial |
| Web terminal | Included | Not included |
| Markdown files on disk you own | Included | Not included |
| Data not used to train models | Included | Included |
| Open source (MIT) | Included | Not included |
Being honest
When Microsoft Copilot is the better choice
- Your organization runs on Microsoft 365 and you want AI inside Word, Excel, Outlook, and Teams.
- You want a managed assistant grounded in your existing Microsoft Graph and identity.
- Self-hosting, file ownership, and multi-provider AI are not priorities.
From the field
IllustrativeCopilot was great inside Office, but we wanted an AI knowledge base we owned and could self-host. Cabinet gave us that, with our own model keys instead of one bundled provider.
Questions
Cabinet vs Microsoft Copilot, answered
Is Cabinet a Microsoft Copilot alternative?
For teams that want to own and self-host an AI knowledge base with bring-your-own-AI, yes. Copilot is the better fit if your work lives inside Microsoft 365 and you want AI in those apps.
Can Cabinet use models other than the bundled one?
Yes. Cabinet brings your own keys across providers, so you choose the models and pay for inference directly.
Does Cabinet need Microsoft 365?
No. Cabinet is independent of any suite and runs on its own.
Is my data used for training?
No. Cabinet is self-hosted with your own keys, and your content is never used to train a model.
Own your knowledge. Keep your AI. Start free.
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