ElevenLabs · fal.ai · Fast text to speech
Eleven v4 Turbo
ElevenLabs Eleven v4 Turbo, fast text to speech, served by fal.ai. Convert text into speech with Eleven v4 Turbo from ElevenLabs. Price: $0.04 per 1,000 characters of text, pro rata (at most 5,000 characters per request). Waits up to 40 s for the result; if the generation takes longer, the run stays RUNNING and returns a request_id; poll fal/status and fetch fal/result with model "elevenlabs/tts" and that request_id. Billed once, when the result is ready; a generation that fails is refunded.
Use this tool with your agent
Use my connected Agentik MCP server. I want to use the tool fal/elevenlabs-tts-v4-turbo (ElevenLabs Eleven v4 Turbo, fast text to speech). Call inspect_tool with {"tool_id": "fal/elevenlabs-tts-v4-turbo"} first and tell me the price before anything runs. Ask me for the inputs it needs; never invent values, IDs or file URLs. When I confirm, call run_tool with tool_id "fal/elevenlabs-tts-v4-turbo" and my inputs, follow it with get_run if it is still running, and give me the result and the price Agentik reports. If it cannot run right now, use discover_tools to propose a similar tool.Show the prompt
Paste it into Claude, ChatGPT or Codex: your agent takes it from there, and shows the price before it runs.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
output_format | string | No | 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. |
apply_text_normalization | string | No | Whether to normalize text such as numbers and dates before generation. Options: auto, on, off. |
text | string | Yes | The text to convert to speech. Supports audio tags such as [whispering] and IPA pronunciation enclosed in forward slashes. |
timestamps | boolean | No | Whether to return character-level timing information with the generated audio. |
similarity_boost | number | No | How closely the output follows the reference voice. Higher values increase similarity but may reduce naturalness. |
language_code | string | No | Language code (ISO 639-1) for speech generation and text normalization. |
voice | string | No | The voice to use for speech generation |
seed | integer | No | Seed for best-effort reproducibility. Identical output is not guaranteed. |
stability | number | No | Voice stability. Lower values allow more expressive delivery; higher values make delivery more consistent. |
How your agent calls it
First inspect_tool for the current schema and price, then run_tool with the published example after confirming your inputs:
{
"tool_id": "fal/elevenlabs-tts-v4-turbo",
"input": {
"text": "Hello from Agentik, this is a short health check."
}
}Price and billing
- Price
- $0.04 / unit
- Model
- Per unit
- Detail
- The provider’s price, with no markup. Billed for measured usage.
- The provider’s price, 0% markup.
- One prepaid balance for every provider; your agent sees the price before it runs.
- Pay for measured usage; unused reservations are released.