How Fabric Compares
Every other AI IDE locks you to a vendor's cloud. Fabric is the only one where you can reconfigure to on-premise at any time, bring all your work with you, and switch models instantly. See how it stacks up.
Fabric vs Cursor
The most popular AI IDE
Cursor leads in market share but locks your workflow to their cloud. Fabric can be reconfigured to on-premise at any time — you bring all your work with you and switch models instantly.
Where Fabric wins:
On-premise at any time, bring all your work, instant model switching, no vendor lock-in
Fabric vs GitHub Copilot
The original AI code assistant
Starting April 2026, Copilot uses your data for training by default. Fabric's sovereignty is architectural — reconfigure to on-premise at any time, no data ever leaves your environment.
Where Fabric wins:
Full IDE, sovereignty by architecture, any model, data never used for training
Fabric vs Windsurf
Acquired by Cognition AI (Dec 2025)
Windsurf changed owners three times in three months. Fabric is software you control — reconfigure to on-premise at any time, bring all your work, switch models with one config change.
Where Fabric wins:
Vendor independence, instant model switching, on-premise, no acquisition risk
At a Glance
| Feature | Fabric | Cursor | Copilot | Windsurf |
|---|---|---|---|---|
| Transparent AI reasoning | Yes | Partial | Limited | Yes (Flows) |
| Air-gapped deployment | Yes | Workaround | No | Unclear |
| BYOK (all features) | Yes | Chat only | Biz/Ent only | Individual only |
| Model agnostic | Yes | No | Partial | No |
| Agentic workflows | Yes | Yes | Yes (GA Mar 2026) | Yes (Cascade) |
| Zero data retention | Yes | Opt-in | Opt-out (Apr 2026) | No |
| Free tier | BYOK (unlimited) | 2K completions | 2K completions | SWE-1-lite |
| Self-hosted models | Yes | Ghost Mode | No | No |
| Custom fine-tuning | Coming soon | No | No | No |
| Intelligent model routing | Yes (patented) | No | No | No |
| GUI + Terminal + CLI | Coming soon | GUI only | Extension | GUI only |
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