Proton Lumo Free

Explore this developer service’s free allowance, critical restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCE

Free AI chat with limited messages, Max-model usage and image generations; 1 Project; signed-in Free chat history retained for 7 days. No fixed numeric message quota published.

Plan details

Plan: Ongoing free allowance
Credit card: Not required
Commercial use: Check provider
Last checked: 2026-10-24

Important restrictions

Proton account required for saved Free-plan chats; guest chat works without signup but has tighter limits. Free usage caps are not numerically published. Lumo Plus and Lumo for Business are paid; commercial use of Free is not explicitly confirmed. Automated or bulk account creation is prohibited.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.