GET

/v1/schemas/fal/audio/fal-ai/elevenlabs/tts/turbo-v2.5

kind inputactivity audiohash 8d57a251…extracted Nov 8, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
37d270257856ecd6c963dd5fd2e69e188e826000a84eb1610b33912e074f2576
{
  "fetchedAt": 1794114001,
  "extractorVersion": "2",
  "verifiedAt": null
}

Request body

12 properties · 1 required · 0 $defs
propertytypedescriptionconstraints
text*stringThe text to convert to speechlength ≥ 1
enable_safety_checkerbooleanCheck input content for safety. Disabling requires account authorization.default: true
timestampsbooleanWhether to return timestamps for each word in the generated speechdefault: false
speednumberSpeech speed (0.7-1.2). Values below 1.0 slow down the speech, above 1.0 speed it up. Extreme values may affect quality.0.7 ≤ n ≤ 1.2 · default: 1
previous_textstringThe text that came before the text of the current request. Can be used to improve the speech's continuity when concatenating together multiple generations or to influence the speech's continuity in the current generation.nullable
language_codestringLanguage code (ISO 639-1) used to enforce a language for the model. An error will be returned if language code is not supported by the model.nullable
apply_text_normalizationenumThis parameter controls text normalization with three modes: 'auto', 'on', and 'off'. When set to 'auto', the system will automatically decide whether to apply text normalization (e.g., spelling out numbers). With 'on', text normalization will always be applie…auto | on | off · default: "auto"
next_textstringThe text that comes after the text of the current request. Can be used to improve the speech's continuity when concatenating together multiple generations or to influence the speech's continuity in the current generation.nullable
voicestringThe voice to use for speech generationdefault: "Rachel"
stylenumberStyle exaggeration (0-1)0 ≤ n ≤ 1 · default: 0
similarity_boostnumberSimilarity boost (0-1)0 ≤ n ≤ 1 · default: 0.75
stabilitynumberVoice stability (0-1)0 ≤ n ≤ 1 · default: 0.5

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"fal-ai/elevenlabs/tts/turbo-v2.5","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}