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Audixa uses paid, plan-based generation. There are no free generations or trial credits. You can listen to fixed samples at audixa.ai/voices without creating audio.

Enable Generation

Choose one of these options before generating through the dashboard or API:
  • Purchase a top-up of at least $10.
  • Start a subscription that includes a monthly generation balance.
See audixa.ai/pricing for the currently available plans, balances, rates, limits, and commercial terms. The pricing page and your authenticated billing dashboard are the source of truth; this guide does not duplicate a static price matrix.

How Generation Cost Works

The server calculates each accepted request from:
  1. The submitted text length, represented as billable tokens.
  2. The selected model: base or advanced.
  3. The per-token rate attached to your active plan.
Short text is accepted from 1 character. TTS billing uses ceil(max(30, character_count) / 4), with a minimum charge of 8 tokens per generation. This applies to standard, dedicated, and streaming TTS, and to each message in a conversation before the existing conversation multiplier. For example, Hi! and a 30-character sentence both cost 8 tokens at your plan’s model rate; 100 characters cost 25 tokens. The minimum affects billing only; Audixa generates the submitted text without padding it. The create-generation response includes tokens and dollar_cost. Audixa reserves the required balance when the request is accepted and restores the reserved amount if processing fails.
Text length is not a guaranteed audio duration. Speaking speed, language, punctuation, voice, and model can all affect the final duration.

Billing Order

When both balances are available, Audixa uses:
  1. Monthly balance included with the subscription.
  2. Top-up balance purchased separately.
Monthly balance resets on the subscription billing cycle and unused monthly funds do not roll over.

Top-Up Expiry

Top-up expiry depends on subscription status:
  • While a subscription is active, the expiry clock for remaining top-up grants is paused.
  • Without an active subscription, remaining top-up grants expire after 30 days. This applies to top-ups purchased without a subscription and to funds remaining after a subscription ends.
  • Starting a subscription again pauses the clock on active, unexpired grants.
The Billing page displays the current expiry state and the next applicable expiry date returned by the backend.

Checking Your Balance

Open Dashboard → Billing to review monthly and top-up balances, current plan facts, payments, and generation charges.

Insufficient Balance

If the available monthly and top-up balances cannot cover the request, the API returns 402 Payment Required and does not queue the generation.
Handle the HTTP status directly rather than depending on an Audixa-specific SDK:

Adding Funds or Subscribing

  1. Go to Dashboard → Billing.
  2. Choose a top-up of at least $10 or select a subscription.
  3. Review the displayed amount and terms, then complete checkout.

Top-Up

Add purchased balance as needed. Its expiry follows the subscription-status policy above.

Subscription

Receive the monthly balance, rates, and limits shown for the selected plan.