Billing & Account
How to raise or lower how many articles you get each month, and what Stripe prorates automatically.
HarperFlow has one plan, so there are no tiers to move between. Changing what you pay means changing how many articles you want published each month — anywhere from 5 to 30. You do it from your Plan page.
Open your Plan page and set the monthly article volume you want. Confirming takes you to your secure Stripe billing portal, where you approve the change. Your card details never pass through HarperFlow itself.
Because the per-article price slides with volume, raising your volume also lowers your per-article rate. See Plans and pricing for the full table.
Stripe prorates the difference automatically on your next invoice. Moving up mid-cycle charges you the difference for the rest of the current period; moving down credits it. You don't need to time a change around your renewal date, and there's no separate confirmation step beyond what Stripe shows you before you finish.
Your new article quota takes effect once Stripe confirms the change, which is typically immediate. Autopilot's publishing cadence follows your quota automatically — raising your volume moves you toward more frequent publishing with nothing to reconfigure by hand.
If you need a few extra articles without changing your subscription, extra credits are available mid-month at your current per-article rate.
Everything else stays exactly the same at every volume: the premium AI writer, brand voice, autopilot, scheduling, the quality audit, and the veto window. Volume is the only thing that changes.
Only the account owner can start a brand-new subscription for a workspace. Once a workspace is subscribed, both owners and admins can open the billing portal to change the volume, update payment details, or cancel. See Team members and roles for the full breakdown of what each role can do.
Customers still on Starter, Pro, or Premium keep those plans. You can switch between them and manage billing exactly as before. If you'd rather move onto Flex, get in touch.
