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Documentation Index

Fetch the complete documentation index at: https://docs.praxis-ai.com/llms.txt

Use this file to discover all available pages before exploring further.

Pria runs on a credit-based billing model. Credits are purchased through Stripe, applied to an Account or a Digital Twin, and consumed as users interact with Pria. This page covers how billing works, where it lives in the platform, and how to manage payment methods, invoices, and subscriptions.

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Billing model overview

Every interaction with Pria consumes tokens. Pria converts tokens into credits before billing so the cost is predictable regardless of which underlying model answered the request.

One credit = 10,000 tokens

The default conversion ratio. Both input and output tokens count toward the total.

Cached tokens at 50%

When a provider serves part of a prompt from its prompt cache, those tokens are billed at half the normal rate.
The discount that caching provides is surfaced on every interaction in the Dialog Report Card and in Admin → History, so you can verify the realized savings on a per-call basis.
For a deeper walkthrough of token math, caching, and how credits are calculated for any single interaction, see Plans & Credits.

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Where billing lives

Billing decisions are made at three scopes — but money only flows in at one of them.
Accounts hold the master credit balance for organizations that operate multiple Digital Twins. Purchases for the Account flow into a shared pool that can then be distributed to one or more instances.
Each Digital Twin tracks its own credit balance. When Pool Credits is enabled on the instance, all member interactions draw from this balance instead of from individual users.
Individual users keep a personal credit balance that funds activity in Pria’s personal instance and in any Digital Twin where credit pooling is turned off.
Purchases are made at the Account level or at the User level. There is no per-instance Stripe customer — instance balances are funded by transfers from the parent Account. See Credit Allocation & Transfers.

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One-time credit purchases

One-time purchases use Stripe Checkout and are the most common way to top up credits.
1

Open the credits gallery

From your profile, choose Add Credits. The gallery shows Personal and Digital Twin packages.
2

Pick a package

Larger packages unlock progressively better per-credit pricing. Credits never expire.
3

Complete checkout

Stripe handles card capture, 3-D Secure, tax, and receipts. On success, the credits are applied immediately and a Stripe receipt is emailed.

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Subscriptions

Subscriptions deliver a recurring credit allotment on a fixed cadence. They are intended for Accounts that want predictable monthly or annual spend, and for the Named User Subscription model where total credits scale with population size.
To start, change, or cancel a subscription contract for your Account, contact the Praxis AI team at humans@praxis-ai.com to request access.
Once a subscription is active, recurring billing, dunning, and payment-method updates are handled entirely through the Stripe Billing Portal.

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Stripe Billing Portal

The Stripe Billing Portal is your self-service surface for everything Stripe owns: payment methods, billing history, invoices, and subscription cancellation.

Open the portal

From your profile, choose Manage Billing. Pria generates a portal session and redirects you to Stripe.

Returns you to Pria

When you close the portal, Stripe sends you back to your profile — any change you made (new card, cancelled subscription, etc.) is immediately reflected.
From the portal you can:
  • Add or replace credit cards and bank accounts
  • Download itemized invoices and receipts in PDF
  • Update the billing address used on invoices
  • Cancel an active subscription
  • View the full charge history for the Account

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Plan tiers

Pria offers two parallel ladders of one-time credit packages: Personal (for individuals topping up their own balance) and Volume (for Accounts and Digital Twins). Pricing improves as the bundle grows.
PackageCostCreditsPer Credit
Silver$109011.00¢
Premium$2523810.50¢
Pro$5050010.00¢
Gold$1201,2639.50¢
Diamond$3003,3339.00¢
For the full breakdown — including the Named User Subscription model and caching examples — see Plans & Credits.

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Trial credits

Every new Account starts with a free trial allocation so users can evaluate Pria before purchasing.

50 credits / 14 days

New accounts are seeded with 50 credits on signup and 14 days of trial access. Trial credits can be spent against any Digital Twin the user can reach.
When the trial expires or the credits run out, users are prompted to add credits before continuing.

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BYOK and billing

When you bring your own provider keys (“Bring Your Own Tokens” / BYOT), Pria routes the call directly against your provider account using your key. Tokens spent through your own keys bypass Pria’s credit system entirely — you pay the provider on their bill, not Pria.
Pria still applies a 40% discount to its base service fees for BYOK customers. Standard setup and support charges are unchanged. See Bring Your Own Model.
A mixed model — BYOK for one provider, Pria credits for another — is fully supported and is configured per-model in Admin → AI Models.

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Refunds and exceptional adjustments

Refunds, credit grants for service incidents, and other exceptional adjustments are handled manually so that an audit trail exists for every change.
To request a refund, a goodwill credit, or a balance correction, contact the Praxis AI team at humans@praxis-ai.com to request access.
Routine credit transfers between an Account and its instances are self-service — see Credit Allocation & Transfers.