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ElevenLabs

Expressive, cloneable voices. Every speaking setting for ElevenLabs, and how to set it.

Service: elevenlabs. A new setup starts from:

1{
2  "service": "elevenlabs",
3  "voice": "",
4  "model": "eleven_flash_v2_5"
5}

Set it

On the flow's Voice tab, choose Speaking, then ElevenLabs. Or from code:

1await voxio.flows.update(flowKey, {
2  tts: {"service":"elevenlabs","voice":"","model":"eleven_flash_v2_5"},
3});

Settings marked “under More settings” are behind More settings in the dashboard.

voicestring: Voice ID. Copy it from your ElevenLabs voice library.
modelstring: Model. Which voice model speaks. Hover an option to compare. Default: "eleven_flash_v2_5".
languagestring: Language (under More settings). Force a language instead of detecting it.
speednumber (×): Speed. How fast the agent talks. From 0.7 to 1.2. Default: 1.
stabilitynumber: Stability. Higher is steadier; lower is more varied. From 0 to 1. Default: 0.5.
similarity-boostnumber: Voice likeness (under More settings). How closely it matches the original voice. From 0 to 1. Default: 0.75.
stylenumber: Style (under More settings). Exaggerates the voice style. Keep low for calls. From 0 to 1. Default: 0.
use-speaker-boostboolean: Speaker boost (under More settings). Sharper, more present voice. Default: true.
apply-text-normalizationstring: Normalise text (under More settings). Read numbers and abbreviations naturally. Default: "auto".

Value	Name	Notes
`eleven_flash_v2_5`	Flash v2.5	Lowest latency. Starts speaking fastest. The best choice for live calls.
`eleven_turbo_v2_5`	Turbo v2.5	A little richer than Flash, slightly slower.
`eleven_multilingual_v2`	Multilingual v2	Highest quality. Most natural, but slower to start. Better for recordings than live calls.
`eleven_v3`	v3	Most expressive. Emotional and dramatic delivery. Slowest to start.