Billing
Plans, seats, trials.

Overview
Billing
Plans
Free trial — 30 days, up to 2 seats, no card required. Every governance feature included.
Team — up to 25 seats, self-service subscription.
Enterprise — custom seats, SSO-enforced enrollment, contract terms; contact sales.
Seats
A seat is an admin or a developer. Current usage vs your limit is on the Billing page; inviting past the limit prompts an upgrade.
Payments
Self-service payments are processed by our merchant of record — Sentilai never sees card data. Invoices and VAT handling come from the checkout provider.

Seats and plan
Billing & Plan shows your plan, your seat limit, and how many seats are in use.
A seat is a person — one row in Admins or Developers — not a device. A developer with
a laptop and a desktop uses one seat. Offboarded people don't hold a seat.
When you reach the cap, new invites are refused until a seat frees up. The screen shows
the path to a larger band, or to talking to us if you're beyond the self-service sizes.

Seats, trials and upgrading
Billing & Plan shows your plan, its status, and how many seats you are using.
Seats
One pool, shared by admins and developers. The counter appears both here and on Users &
Teams.
Hitting the cap refuses new invitations with a dialog naming your limit. Two ways out:
offboard people who have left, which frees their seats immediately, or move to a larger
plan.
Plan states
Trialing, with the end date shown.
Active, with the renewal date.
Past due — a payment failed. Fix the card before it lapses.
Scheduled to cancel — a notice tells you when it ends.
Choosing a plan
Self-service plans are seat bands, not a per-seat meter:
Plan
Seats
Free trial
5, for 30 days
Starter
up to 5
Growth
up to 10
Team
up to 25
You pay the band's flat price whether you fill it or not, so the band you need is decided by
your headcount, not your usage. A team of twelve is on Growth's next band up, Team — worth
knowing before you plan a hire.
Above 25 seats the page points you at us for Enterprise.
Billing cycle
A monthly / annual toggle sits above the plans, defaulted to annual. Annual works out at
roughly two months cheaper per year and is billed once; monthly carries no commitment and
can be cancelled any time.
Prices exclude VAT, which is added at your local rate during checkout. Business buyers
reclaim it, so the net figure is the one worth comparing.
Changing band
Choosing a plan opens a hosted checkout with our merchant of record and returns you to this
page. Card details are never handled by Sentilai.
Moving up takes effect immediately and is prorated.
Moving down takes effect now, and the lower price starts at your next renewal — you
are not refunded the remainder of the term you already bought.
Managed and Enterprise organizations
If your organization is billed through an agreement rather than self-service, this page
shows that instead of a checkout button. Seat changes go through your account contact.
If upgrading is unavailable
You may see a message that online upgrade is not available yet. That is a temporary state
on our side, not a problem with your account — contact us and we will move you.
Billing & Plan — the three seat bands with the annual/monthly toggle. Prices are exclusive of VAT.

What you are billed for
A common and reasonable question: does routing through Sentilai make AI usage cost more?
Sentilai charges per seat band
Your Sentilai subscription is a flat price for a band of seats — the shared pool of
admins and developers. It does not vary with how many requests your team makes, and it does
not vary with how much of the band you use: eleven people and twenty-five people on the same
band pay the same.
AI usage is billed separately, and by whom depends on the mode
Subscription mode — the developer's own AI plan pays, exactly as it did before
Sentilai existed. Nothing changes about that bill.
Managed API key mode — the request goes out on your organization's provider key and
the provider bills you directly, at the provider's own rates. Sentilai does not mark this
up and does not resell AI capacity.
The Mode column in Activity tells you which applies to any given request, and
Compliance reports the overall split.
Controlling managed spend
Enabled models on each provider key: the simplest lever. A key that does not enable
the expensive model cannot be used to buy it.
The Tokens column in Activity finds the agent loop that is burning far more than
anyone expected.
Your provider's own dashboard remains the authority on what you owe them.
What the classifier costs
The prompt-injection classifier we host ourselves is included. The larger EU-hosted
classifier tier is part of your subscription rather than a separate meter — if you are
sizing an evaluation and want the details, ask.