Plans built for modern workflows
Free forever for quick daily queries. Pro for professionals who require uninterrupted screen context intelligence.
Free
Essential screen context assistance for casual daily exploration.
Pro
Save 20%Unconstrained power for engineers, researchers, and power users.
Frequently Asked Questions
How does the desktop overlay interact with my open windows?
Lumen uses lightweight native Windows APIs to capture the exact screen pixels only when you invoke a command or make a selection. It does not record your screen continuously in the background.
Can I bring my own OpenAI API key?
Yes. In the Pro plan and desktop app settings, you can plug in your own API key to bypass all rate limits and utilize custom models.
Is my screen context stored on remote servers?
Ephemeral screen crops and audio buffers are processed in memory and discarded after analysis. Your full session history is stored strictly on your local computer unless you explicitly choose to cloud-sync.
Can I cancel or switch plans at any time?
Yes, you can cancel or switch between monthly and annual plans at any point directly from the Billing dashboard.