Usage and Billing

Reviewed by Proof · Updated

Definition

Usage and billing is how luv13 charges the tokens your requests use against your prepaid credit, at a flat $0.33 per 1M tokens.

Key takeaways

  • You pay per token: a flat $0.33 per 1M tokens on every model, and input tokens cost the same as output tokens.
  • Billing is prepaid credit in USD. You top up by card in the dashboard, through Stripe, from $5, and usage draws down the balance.
  • There's no subscription.
  • Failed or empty calls aren't charged.
  • Your balance and recent usage are in the dashboard. All of the above is from luv13.ai/docs and luv13.ai/pricing, checked on 2026-09-30.

How a request is charged

Because input and output cost the same, only the total matters:

cost in USD = total tokens / 1,000,000 × 0.33

Worked example: 800,000 input tokens plus 200,000 output tokens is 1,000,000 tokens, so the cost is $0.33.

For more worked numbers, see Estimating Costs. For input and output tokens in general, see Input vs. Output Tokens.

What isn't charged

luv13.ai/docs says failed or empty calls aren't charged, so a request that errors costs nothing.

The rate is set by the operator; Pricing is the source of truth.