Billing & limits
Hosted services under maintenance: Platform and the managed API are under maintenance. Their instructions below are retained for when those features return; Chat and Mobile instructions describe the live apps. This notice does not apply to public model downloads or Vinci Code’s bring-your-own-key setup. See the current products page .
The billing guidance below describes Vinci-managed usage. Platform and managed API access remain subject to the Platform and managed API maintenance notice above; use billing controls where offered. Vinci Code with your own provider uses that provider’s billing instead.
Earlier plans and free-credit offers
On August 25, 2026, Vinci stopped issuing new free account credit and retired new subscription checkout. Earlier offers for monthly free top-offs, email-verification credit, and included subscription credit are no longer available to new purchases or new account activity.
This change did not remove credit already issued or change its applicable expiry. Existing trial and promotional credit remains subject to its original expiry, and credit due for an existing paid subscription period remains governed by that period’s terms. Purchased credit does not expire. This page does not change an account’s balance, refund eligibility, or other existing rights.
For your account’s balance, expiry dates, or a billing question during Platform and managed API maintenance, contact support. Do not assume an earlier advertised offer applies to a new account or purchase.
Anonymous demo
The limited no-account web demo is available and is separate from account credit. Follow the limits shown in the app; the demo does not grant credit to an account.
Welcome credit and the Mobile reward
One-time $20 USD welcome credit is available for verified personal accounts, once per email address. New sign-ups receive it after email verification while the program is available. Existing accounts can open Account > Usage & billing in Vinci Chat on the web and choose Save welcome credit if it has not been saved. This credit does not expire. Limited program; may end at any time.
Existing balances and purchased-credit rights are unchanged.
The $10 qualified-Mobile-use reward is not yet available. Its issuer and qualifying use are still deferred; downloading an app does not claim it. The welcome offer and deferred Mobile reward do not create a daily or monthly grant, change purchased balances, or reopen subscriptions.
Buy credits and auto top-up
The selected policy has a $10 minimum purchase where purchasing is available; confirm the amount shown by the app before paying. Purchased credits do not expire. Where available, you can enable auto top-up to add credits when your balance runs low and set a monthly cap to control how much can be added automatically.
The selected Vinci-managed billing policy adds a 15% markup to the underlying inference cost. Confirm the app’s estimate for your selected route when available before sending; final usage follows the authoritative transaction receipt. With your own provider, that provider’s billing applies instead.
Track your balance and usage
Your credit balance is shared across chatting in the web and mobile apps, calls made with an API key, and Vinci Code when configured to use Vinci-managed usage. Open Account in the app or the Usage page on the Vinci Platform ↗ to review it.
An estimate and a settled charge are different records. Unknown or pending cost is not zero. If a response stops, do not repeat a chargeable action merely to obtain a receipt. Report the surface, version, UTC time and sanitized transaction or request ID to support; omit conversation contents and credentials.
On the Platform Usage page, choose a 7-, 30-, or 90-day preset, or set a custom start and end date. The CSV export uses the selected date range.
You can also create usage alerts that call an HTTPS webhook you provide. A
balance_below alert triggers when your credit balance drops below its threshold, and a
monthly_spend_above alert triggers when your month-to-date spend exceeds its threshold.
No prompt or response content is sent.
What happens when you run out
When you run out of credits, the app pauses and the API returns HTTP 402
(budget_exhausted / insufficient_quota). Where the relevant service and purchasing features are available, adding credits
or an enabled auto top-up can restore the balance. A positive balance does not
by itself establish service availability during Platform and managed API maintenance.
Busy-time slowdowns
When Vinci is busy, you may see HTTP 429 (rate_limit_error) — a brief wait is
required, not a credit issue. Wait a few seconds and retry.