Eleven v4 Turbo

Generate speech with Eleven v4 Turbo from ElevenLabs. Choose a voice and control delivery with audio tags, stability, similarity settings, and IPA pronunciation.

Inference$ Commercial useFrom 1 credit per run

About Eleven v4 Turbo

Generate speech with Eleven v4 Turbo from ElevenLabs. Choose a voice and control delivery with audio tags, stability, similarity settings, and IPA pronunciation.

audiotext-to-speechvoiceover

Pricing

A run with the default settings costs 1 credits. The exact cost updates in the playground as you change settings, and you're only charged when you press Run. Failed runs are refunded automatically.

Inputs

texttextarearequired

The text to convert to speech. Supports audio tags such as [whispering] and IPA pronunciation enclosed in forward slashes.

voicetextdefault: "Rachel"

The voice to use for speech generation

stabilitynumberdefault: 0.5

Voice stability. Lower values allow more expressive delivery; higher values make delivery more consistent.

similarity_boostnumberdefault: 0.75

How closely the output follows the reference voice. Higher values increase similarity but may reduce naturalness.

seedinteger

Seed for best-effort reproducibility. Identical output is not guaranteed.

language_codetext

Language code (ISO 639-1) for speech generation and text normalization.

output_formatselectdefault: "mp3_44100_128"

Output format of the generated audio. Formatted as codec_sample_rate_bitrate.

Options: mp3_22050_32, mp3_44100_32, mp3_44100_64, mp3_44100_96, mp3_44100_128, mp3_44100_192, pcm_8000, pcm_16000, pcm_22050, pcm_24000, pcm_44100, pcm_48000, ulaw_8000, alaw_8000, opus_48000_32, opus_48000_64, opus_48000_96, opus_48000_128, opus_48000_192

enable_safety_checkerbooleandefault: true

Check input content for safety. Disabling requires account authorization.

apply_text_normalizationselectdefault: "auto"

Whether to normalize text such as numbers and dates before generation.

Options: auto, on, off

timestampsbooleandefault: false

Whether to return character-level timing information with the generated audio.

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