- Supports 180 voices across 30+ languages and variants, with more to come soon.
- WaveNet Voices
- Exclusive multilingual access to DeepMind WaveNet voices that provide the most natural-sounding speech.
- Text and SSML Support
- Customize your speech with SSML tags that allow you to add pauses, numbers, date and time formatting, and other pronunciation instructions.
- Speaking Rate Tuning
- Customize your speaking rate to be 4x faster or slower than the normal rate.
- Pitch Tuning
- Customize the pitch of your selected voice, up to 20 semitones more or less than the default output.
- Volume Gain Control
- Increase the volume of the output by up to 16db or decrease the volume up to -96db.
- Audio Format Flexibility
- Choose from a number of audio formats including mp3, Linear16, and Ogg Opus.
- Audio Profiles
- Optimize for the type of speaker from which your speech is intended to play, such as headphones or phone lines.
|Feature||Monthly free tier||Paid usage|
|Standard (non-WaveNet) voices||0 to 4 million characters||$4.00 USD / 1 million characters|
|WaveNet voices||0 to 1 million characters||$16.00 USD / 1 million characters|