There is no emotion parameter, so range comes from the voice and from how the line is written. Fourteen voices carry the character tag, and those have the widest delivery available.
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German AI Voices
Female Voices
Warm Voices
AI Voices for Podcast Generation
British English AI Voices
AI Voices for Documentary Voice Over
Calm Voices
Australian English AI Voices
AI Voices for Gaming & Character Voices
Professional Voices
AI Narrator Voices
Cheerful Voices
AI Voices for Customer Support Automation
Authoritative Voices
AI Voices for Meditation & Wellness
Gravelly AI Voices
AI Voices for YouTube Voiceover
Indian English AI Voices
AI Voices for Movie Trailers
Friendly Voices
Narration is the one job where a voice has to hold up for hours rather than seconds. 163 of the 244 voices here carry the narration tag, the largest group in the catalog, across English, Hindi and nine other Indic languages.
1500+ voices to explore
Browse our full voice library and find the right tone, accent, and personality for your agent.
Model Specifications
Streaming transports
Output formats
Speed range
Sample rate
Latency
Range comes from casting and writing
There is no emotion parameter, so expression cannot be dialled in. It comes from the voice you cast and from how the line is written. That is a real constraint worth stating rather than working around, because it changes where the effort goes.
Consistency across a scene
Requests cap at 250 characters, so an extended exchange spans several calls with nothing holding a performance steady across them. Generate a full scene rather than a line and listen across the joins before building a production pipeline around it.
The character pool
Fourteen voices carry the character and animation tag, which is the group with the widest delivery available. Julia and Kiara carry the most range, Albus and Blofeld the most weight. Beyond those fourteen, the catalog offers nothing that describes expressiveness.
Generating at runtime
For games and interactive work, the WebSocket transport streams audio as it renders, so expressive dialogue can be produced during play. That avoids pre-rendering every branch, which in a game with meaningful choice is where asset counts usually get out of hand.
Similar to
Expressive Voices
Energetic Voices
Speed is the reliable lever here, not casting. Settings between 1.2 and 1.4 lift almost any voice in the catalog, though longer sentences start to blur past roughly 1.5.
Cheerful Voices
Only six voices in the catalog show cheerful or positive markers, the thinnest tone signal available. Speed slightly above 1.0 lifts almost any voice, which is the more dependable route.
Young Voices
One hundred and forty six voices are tagged young, 63 percent of the catalog, across every accent and all twelve recommended languages. Unlike tone, age is a real tagged field rather than an inference.
Deep Voices
Worth saying plainly: nothing in the catalog records pitch, so these six were chosen by ear rather than filtered. There is no pitch control either, so depth is a casting decision.
AI Voices for Gaming & Character Voices
Pre-rendering every branch means shipping every branch. WebSocket streaming lets dialogue generate during play instead, so a conversation tree costs what players actually hear rather than what they might.
AI Voices for Podcast Generation
Podcast production is segment based already, which suits generation in short calls. Intros and ad reads generate once and cache, and pairing contrasting voices produces a two-hander without booking two people.
