Side by side
BrowserOS vs Comet
Both stand on ai browsers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source APIExtensionLinux+3
Choose BrowserOS if you want a free, open-source Chromium browser with AI agents, MCP integrations, and desktop support across macOS, Windows, and Linux. Look elsewhere if you need local models for Agent Mode or visual Graph Mode now; cloud AI provider usage may also cost extra.
Visit BrowserOS
Free plan AndroidiPhoneMac+1
Comet combines browsing with an assistant for page questions and website interactions. Keep in mind that some queries may involve server-side processing of page context and that extensions do not transfer from Chrome.
Visit CometThe facts
| BrowserOS | Comet | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | No |
| Runs on | API, Extension, Linux, Mac, Self-hosted, Windows | Android, iPhone, Mac, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 3 | 1 |
| Maker | BrowserOS | Not published |
| Website | browseros.com | perplexity.ai |
| On ai browsers | #1 of 23 | #4 of 23 |
BrowserOS: what it does well
- AI agents can navigate, fill forms, extract data, and run multi-step workflows.
- Supports Gemini, Claude, OpenAI, Ollama, and LM Studio.
- Lists more than 40 MCP app integrations and 53 built-in browser tools.
- Supports Chrome extensions and imports bookmarks, passwords, and settings.
- Browsing data stays on device unless cloud syncing is enabled.
What to know first
- The default AI model has limited daily usage.
- Cloud AI providers may charge based on API usage.
- Local LLMs are not yet powerful enough for Agent Mode.
- Visual Graph Mode is marked as coming soon.
Comet: what it does well
- Free browser for Android, iOS, macOS, and Windows.
- Assistant can answer questions about open tabs.
- Supports most Chrome extensions.
- Browsing data is stored locally on the device.
- Users can stop the agent and review actions before confirming.
What to know first
- Chrome extensions must be reinstalled and configured.
- Some queries may send page context to Perplexity’s servers.
- Email or schedule tasks may require opting into Connector access.
Alternatives to BrowserOS Alternatives to Comet The whole list