Text-to-speech converts written text into spoken audio. You provide the text and optionally choose a voice. The agent generates an MP3 file you can play and download.Documentation Index
Fetch the complete documentation index at: https://docs.runable.com/llms.txt
Use this file to discover all available pages before exploring further.
How to generate speech
Describe what you need
Tell the agent what text to convert. You can type the text directly or ask the agent to write it first.
Choose a voice (optional)
If you do not specify a voice, the agent uses Rachel (the default). To use a different voice, mention it in your prompt.
You can also use a cloned voice by its ID. See Voice Cloning.
| Voice | Description |
|---|---|
| Rachel (default) | Neutral, clear, conversational |
| George | Male, warm tone |
| Sarah | Female, professional |
| Charlie | Male, casual |
| Lily | Female, friendly |
| Chris | Male, energetic |
Example prompts
Phone greeting for a small accounting firm
Voiceover for a bakery's Instagram Reel
Explainer narration for a fitness studio's website
What you cannot do
- You cannot control speed, pitch, or emphasis. The voice model determines pacing naturally.
- You cannot add pauses or breaks at specific positions in the text.
- You cannot output in formats other than MP3 or WAV.
- You cannot mix speech with background music in one step. Generate them separately.
Next steps
Multi-Speaker Dialogue
Generate conversations between multiple speakers.
Voice Cloning
Clone a voice from audio samples to use for speech generation.
