The Lumen blog
How Lumen Routes a Free Question Across Several AI Models
On the Free tier, Lumen doesn't lock you to one model -- it cascades across several fast providers and falls back automatically when one is slow or unavailable.
What Turning On “Agent Mode” Actually Does
Agent mode is a real plan / act / observe loop, not a single longer prompt -- here is what actually runs when you flip it on.
Free, Pro, Max: What Each Lumen Tier Actually Unlocks
The Free tier is meant to be genuinely useful on its own. Here is specifically what upgrading buys you, and why.