Lumen vs Comet — an agentic AI without a new browser to install
Comet ships agentic AI inside its own browser. Lumen brings the same do-the-work-for-you capability to any browser you already use — with cited answers, connectors and opt-in local file access.
What Lumen does
Lumen is an AI answer engine with a real agentic mode. Ask any question and get a concise, cited answer drawn from live web search. Or switch on the agent and Lumen plans steps, runs connectors — web, GitHub, a sandboxed terminal, 700+ Activepieces integrations, browser automation, and opt-in access to files on your own computer — then reports back. It is built to be efficient, so $20 buys you a lot.
Lumen vs Comet at a glance
| Capability | Lumen | Comet |
|---|---|---|
| Cited answers from live web | Yes | Yes |
| Agentic mode (multi-step work) | Yes — adaptive ReAct loop | Yes — in its own browser |
| Browser automation | Yes | Yes — its own browser only |
| Local file access (opt-in) | Yes — read-only by default | Browser-scoped |
| Connectors | 700+ via Activepieces | Browser-scoped |
| Pick your model | Free + Opus/GPT-4o/Grok/Gemini | Tied to its app |
| Image generation | Yes | Varies |
| Price | Free · Pro $20/mo | Bundled with subscription |
Comparison reflects publicly documented capabilities and is provided in good faith; competitor products change frequently — check their sites for the latest. Comet is a trademark of its respective owner; Lumen is not affiliated with it.
Why people pick Lumen
People pick Lumen because it does not ask you to switch browsers. You get agentic multi-step work, browser automation (headless or in your own Chrome), 700+ connectors and opt-in access to files on your own machine — all from a normal web app at a clear $20/month.