Comet vs Fellou
A side-by-side comparison of Comet and Fellou, two Assistant tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
Comet
AssistantPerplexity's AI browser with a sidebar assistant that acts across your tabs.
View CometAt a glance
| Attribute | Comet | Fellou |
|---|---|---|
| Category | Assistant | Assistant |
| Pricing (differs) | FREEMIUM | FREE |
| License | Proprietary | Proprietary |
| Deployment | Local | Local |
| Platforms (differs) | Windows, macOS, Android, iOS | macOS, Windows, Linux |
| Model support (differs) | Multi-model | — |
| Vendor (differs) | Perplexity | Fellou AI |
The honest brief
Comet
The only major AI browser free across desktop and mobile, with an assistant that can act on open tabs, email, and calendar from the sidebar.
- Free on desktop and mobile
- Sidebar assistant acts across tabs
- Chromium base imports Chrome data
- Deep Research and voice built in
- Closed source
- Frontier models need Pro or Max
- Publisher content costs $5/month
- Assistant needs broad data access
Fellou
Plans a visible, editable action plan and then autonomously executes multi-site tasks — research, forms, reports — instead of just answering questions.
- Autonomous multi-site task execution
- Review and intervene at any step
- Deep research across many tabs
- Cross-platform: macOS, Windows, Linux
- Drag-and-drop local file analysis
- Early-stage, credit-gated beta
- No mobile version
- Agentic browsing raises security questions
- Free 'Spark' credits run out quickly