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Audixa uses a credit-based billing system. This guide explains how credits work, how they’re calculated, and how to manage your balance.

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How Credits Work

Every API call consumes credits based on:
  1. Text length (measured in tokens, approximately 1 token ≈ 1 character)
  2. Voice model (Base or Advance)
New accounts receive 10,000 free credits to get started.

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Credit Calculation

The credit cost depends on which model you use:
ModelCredit CostBest For
Base1 credit per tokenStandard voices, high volume
Advance4 credits per tokenCustom voices, cloning, emotions

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Example Calculations

Text: “Welcome to our product demo.” (30 characters)Calculation: 30 tokens × 1 credit = 30 credits
Tokens are approximately equal to characters, including spaces and punctuation.

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Checking Your Balance

Your credit balance is visible in the Audixa Dashboard.
Credit balance is not exposed via the API. Use the dashboard to monitor your usage.

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Insufficient Balance

When your credits run out, API requests return a 402 Payment Required error: 
{
  "detail": "Insufficient Balance"
}

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Handling This Error

response = requests.post("https://api.audixa.ai/v2/tts", ...)

if response.status_code == 402:
    print("Insufficient credits. Please add funds at https://audixa.ai/dashboard/billing")

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Adding Credits

To add credits:
  1. Go to Dashboard → Billing
  2. Choose a credit package or subscription
  3. Complete the payment

Pay-As-You-Go

Purchase credit packages as needed. Credits never expire.

Subscription

Monthly plans with automatic credit refills and volume discounts.

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Pricing Plans

Visit the Pricing Page for current plan details including:
  • Credit package prices
  • Subscription tiers
  • Enterprise volume discounts
  • Feature comparisons

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Cost Optimization Tips

Use Base Model

Use Base model when you don’t need advanced features. It’s 4x more efficient.

Cache Audio

Store generated audio files instead of regenerating the same content.

Trim Text

Remove unnecessary whitespace and optimize text before sending.

Batch Wisely

For long content, consider breaking into logical segments.

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Usage Tracking

The dashboard provides detailed usage analytics:
  • Daily/weekly/monthly credit consumption
  • Usage by voice and model
  • API call history
  • Cost projections

View Usage Dashboard

Track your credit consumption and API usage patterns.