Models
Text to Speech
The Text to Speech API converts text into natural speech, billed per input character. Supports a full lineup of expressive voices, streaming, and batch output, in MP3, WAV, PCM, μ-law, and A-law formats.
At a glance
| Details | |
|---|---|
| Modalities | Text → Audio |
| Pricing | / 1M chars |
| Region | us-east-1 |
Pricing
| Details | |
|---|---|
| Per 1M chars | / 1M chars |
Rate Limits
| Details | |
|---|---|
| Requests per second | RPS |
| Concurrent sessions | per team |
Capabilities
Expressive built-in voices
Streaming output
Batch output
MP3 / WAV / PCM / μ-law / A-law formats
Availability
| Details | |
|---|---|
| Cluster | us-east-1 |
Documentation
Text to Speech Guide — Getting started with text to speech
API Reference — Text to Speech endpoint reference
Pricing — Full pricing overview
Last updated:September 11, 2026