Sprag pricing
9 plans on the record
Every plan
Chorus
$0.70 per hour of speech generated; also listed as $19.44 per 1M audio tokens
Stock-voice text-to-speech
Read 20 Sep 2026 · sprag.ai
Chorus Design
Designs new voices from a text prompt
Read 20 Sep 2026 · sprag.ai
Chorus Clone
Plus $1.00 per hour of input audio
Clones a voice from a short reference
Read 20 Sep 2026 · sprag.ai
Symphony Notes
$0.0019/ minute
Audio captioning · + $2.03 per 1M output tokens
Read 7 Oct 2026 · sprag.ai
Rhythm
$0.075/ hour of audio submitted; batch rate
Streaming and batch · realtime sessions cost 25% over batch rates
Read 7 Oct 2026 · sprag.ai
Symphony
$0.09/ hour of audio; batch rate
Text, image, audio, and video in · text and speech out · tool calling · realtime sessions cost 25% over batch rates
Read 7 Oct 2026 · sprag.ai
Chorus — built-in voice
$0.70/ hour of speech generated
Built-in voices · $19.44 per 1M audio tokens
Read 7 Oct 2026 · sprag.ai
Chorus — cloned voice
$4.50/ 1M characters
$0.27 per hour of speech · + $1.00 per hour of reference audio
Read 7 Oct 2026 · sprag.ai
Chorus — designed voice
$15.00/ 1M characters
Voice design
Read 7 Oct 2026 · sprag.ai