ElevenLabsMediumUltra

ElevenLabs v3

ElevenLabs' most expressive text-to-speech model. 26 premium voices, inline audio tags like [laughs] and [whispers], fine-grained style and stability controls, and 70+ language support.

237 credits

per 1000 characters (0.225 credits/char, billed per character)

Most expressive ElevenLabs model

Inline audio tags: [laughs], [whispers], [sighs], [excited]

26 premium preset voices

Style, stability, and similarity controls

70+ language support

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txtllms.txt ↗

Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "elevenlabs/v3",
  "input": {
    "prompt": "[whispers] Something moved in the darkness. [pause] Then, out of nowhere... [excited] a tiny kitten jumped onto the table! [laughs]",
    "voice": "James",
    "stability": 0.4,
    "language_code": "en"
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	The text to convert to speech. Supports audio tags like [laughs], [whispers], [sighs]
`voice`	string	No	Rachel	Voice choice for speech generation RachelDrewClydePaulAriaDomiDaveRogerFinSarahJamesJaneJuniperArabellaHopeBradfordReginaldGamingAustinKuonBlondiePriyankaAlexandraMonikaMarkGrimblewood
`stability`	number	No	0.5	Voice stability (0.0-1.0). Lower is more variable and expressive
`similarity_boost`	number	No	0.75	How closely the output follows the original voice (0.0-1.0)
`style`	number	No	0	Style exaggeration (0.0-1.0)
`speed`	number	No	1	Speed of speech (0.7-1.2)
`previous_text`	string	No	-	Previous text for prosody context across segments
`next_text`	string	No	-	Next text for prosody context across segments
`language_code`	string	No	en	Language of the text. Match it to your input for correct pronunciation enkojazhdehifrptitesidnltrfilplsvbgroarcselfihrmsskdataukruhunovi

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Expressive Storytelling

Dramatic narration with audio tags

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "elevenlabs/v3",
  "input": {
    "prompt": "[whispers] Something moved in the darkness. [pause] Then, out of nowhere... [excited] a tiny kitten jumped onto the table! [laughs]",
    "voice": "James",
    "stability": 0.4,
    "language_code": "en"
  }
}'