Lumen vs Perplexity — a $20 AI answer engine that also does the work
Perplexity made AI answers with citations popular. Lumen does that too — and adds a real agentic mode that plans and runs connectors to actually do the work for you.
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 Perplexity at a glance
| Capability | Lumen | Perplexity |
|---|---|---|
| Cited answers from live web | Yes | Yes |
| Agentic mode (multi-step work) | Yes — adaptive ReAct loop | Limited / assistant-style |
| Browser automation | Yes | Limited |
| Local file access (opt-in) | Yes — read-only by default | No |
| Connectors | 700+ via Activepieces | A handful |
| Pick your model | Free + Opus/GPT-4o/Grok/Gemini | Some, on higher tiers |
| Image generation | Yes | Yes |
| Price | Free · Pro $20/mo | ~$20/mo Pro |
Comparison reflects publicly documented capabilities and is provided in good faith; competitor products change frequently — check their sites for the latest. Perplexity is a trademark of its respective owner; Lumen is not affiliated with it.
Why people pick Lumen
People move to Lumen for the genuine agentic mode — an adaptive ReAct loop that observes, reasons and acts step by step — plus opt-in local file access, browser automation, 700+ connectors and a clear $20 price. The free tier already includes a taste of the agent, so you can judge it yourself.