ChatGPT Atlas vs Fellou
A side-by-side comparison of ChatGPT Atlas and Fellou, two Assistant tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
ChatGPT Atlas
AssistantOpenAI's web browser with ChatGPT built in — sidebar, memories, and agent mode.
View ChatGPT AtlasAt a glance
| Attribute | ChatGPT Atlas | Fellou |
|---|---|---|
| Category | Assistant | Assistant |
| Pricing (differs) | FREEMIUM | FREE |
| License | Proprietary | Proprietary |
| Deployment | Local | Local |
| Platforms (differs) | macOS | macOS, Windows, Linux |
| Model support (differs) | Single model (proprietary) | — |
| Vendor (differs) | OpenAI | Fellou AI |
The honest brief
ChatGPT Atlas
No browser ties deeper into ChatGPT — your existing account brings memories, chat history, and agent mode to every page without a separate assistant.
- ChatGPT sidebar on every page
- Browser memories carry context
- Agent mode automates web tasks
- Familiar Chromium foundation
- macOS only so far
- Agent mode needs a paid plan
- Closed source
- Prompt-injection risks under scrutiny
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