GET

/v1/schemas/elevenlabs/audio/v1%2Ftext-to-voice%2Fcreate-previews

kind inputactivity audiohash 18f3e8adextracted Jul 6, 2026version currentsource upstream spec ↗

Request body

8 properties · 1 required · 0 $defs
propertytypedescriptionconstraints
voice_description*stringDescription to use for the created voice.length ≥ 20 · length ≤ 1000
textstringText to generate, text length has to be between 100 and 1000.length ≥ 100 · length ≤ 1000 · nullable
auto_generate_textbooleanWhether to automatically generate a text suitable for the voice description.default: false
loudnessnumberControls the volume level of the generated voice. -1 is quietest, 1 is loudest, 0 corresponds to roughly -24 LUFS.-1 ≤ n ≤ 1 · default: 0.5
qualitynumberHigher quality results in better voice output but less variety.-1 ≤ n ≤ 1 · default: 0.9
seedintegerRandom number that controls the voice generation. Same seed with same inputs produces same voice.0 ≤ n ≤ 2147483647 · nullable
guidance_scalenumberControls how closely the AI follows the prompt. Lower numbers give the AI more freedom to be creative, while higher numbers force it to stick more to the prompt. High numbers can cause voice to sound artificial or robotic. We recommend to use longer, more deta…0 ≤ n ≤ 100 · default: 5
should_enhancebooleanWhether to enhance the voice description using AI to add more detail and improve voice generation quality. When enabled, the system will automatically expand simple prompts into more detailed voice descriptions. Defaults to Falsedefault: false

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"elevenlabs","endpointId":"v1/text-to-voice/create-previews","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}