What is Gross Margin?
Revenue minus the direct cost of delivering it, usually shown as a share of revenue. For AI features, inference is part of that cost, so heavy use on a flat plan can push it toward zero or below.

1 flat fee · 40 tasks · margin 0%
Gross margin is…
Write it in your own words in the app.
In real work
Gross margin on the flat plan slid as power users ran agents all day, so the team added usage tiers before touching the base price.
In the illustration
A flat subscription fee sits on the revenue pan. Each task the customer runs drops a cost pellet on the other pan, and at task 40 the pointer reaches zero margin.
Calculate the gross margin in your model for our AI plan from the price per seat, tasks per seat and cost per task I give you, then show the usage level where margin turns negative.
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