API Pricing
The Fish Audio API uses pay-as-you-go pricing based on actual usage. There are no subscription fees or monthly minimums for API access.
Text-to-Speech (TTS) Models
TTS pricing is based on the size of input text, measured in millions of UTF-8 bytes.
| Model Name | Price (USD) |
|---|
s2-pro | $15.00 / M UTF-8 bytes |
s1 | $15.00 / M UTF-8 bytes |
1M UTF-8 bytes is approximately 180,000 English words, or about 12 hours of speech
Automatic Speech Recognition (ASR) Models
| Model Name | Price (USD) |
|---|
transcribe-1 | $0.36 / audio hour |
- Charges are based on the duration of audio processed
- Duration is rounded up to the nearest second
Rate Limits
These limits help us ensure fair usage and maintain service quality for all users.
Concurrent Request Limits
| Tier | Spending Threshold | Concurrent Requests |
|---|
| Starter | < $100 paid | 5 requests |
| Elevated | ≥ $100 paid | 15 requests |
| High Volume | ≥ $1,000 paid | 50 requests |
| Enterprise | Custom | Custom limits |
Concurrency tiers unlock as soon as your total prepaid amount reaches the threshold. You do not need to spend the full balance first. If your workload needs a higher concurrency tier, you can top up in advance to unlock the next tier immediately.
Please reach out to our team to enable enterprise volume pricing, rate limits, and billing.
Support
Need help? Check out these resources:
