Audio modelFree
Text to Speech
Speech from text in a system voice. Try it in the studio, or call it from the API.
From 2 credits for 10 seconds of speech in a standard voice (≈ $0.02)
Text to Speech specs
- Tier
- Free — everyone can use it
Text to Speech pricing
Pricing- From
- 2 credits / 10 s(≈ $0.02)
The studio shows the exact price before you generate. Failed runs are refunded.
How it works
How to use Text to Speech
Pick how to start
Open Text to Speech in the studio.
Set it up
Describe what you want. The studio only shows the settings Text to Speech supports.
Check the price, then generate
The studio shows the exact price before you generate. Failed runs are refunded.
API
Text to Speech API
Model id tts. Same price and limits as the studio.
REST · POST /v1/jobs
curl -X POST "https://api.der.run/v1/jobs" \
-H "Authorization: Bearer $DER_API_KEY" \
-H "Idempotency-Key: $(uuidgen)" \
-H "Content-Type: application/json" \
-d '{
"model": "tts",
"params": {
"text": "…",
"voice_id": "…"
}
}'
# then poll every 5 s until it’s finished
curl "https://api.der.run/v1/jobs/{id}" \
-H "Authorization: Bearer $DER_API_KEY"FAQ
Text to Speech FAQ
How much does Text to Speech cost?
From 2 credits for 10 seconds of speech in a standard voice (≈ $0.02). The price changes with how long the text takes to say and the voice you pick. The studio shows the exact price before you generate, and there is no subscription. See how pricing works.
Does Text to Speech have an API?
Yes. Call Text to Speech with model id tts over the REST API or the MCP server, with the same credits and limits as the studio. See the API docs.
How long are my results kept?
7 days. Keep the ones you want in your Library (up to 200) so they don’t expire.
Other audio models
All modelsText to Music
Songs with vocals, two versions a run5 credits / songSongs with vocals, two versions a runFrom 5 credits / songMusic Cover
New lyrics over a song you uploadIn the studioNew lyrics over a song you uploadPrice shown in the studioText to Speech (Cloned Voice)
ProNeeds ProSpeech in a voice you cloned2 credits / 10 sSpeech in a voice you clonedFrom 2 credits / 10 s
Make your next track
Text to Speech · From 2 credits / 10 s