The production layer for AI voice
Voice that clears your bar. Every line, every run, every language.
Trusted by teams shipping voice at scale.
TTS makes voice.
Onepin makes it production-ready
Each one built with nodes.
We do the hard parts of voice.
Drop in your script. We handle the models, the cleanup, the pronunciations, and the checks — so every line comes out production-ready.
Every top TTS model, in one place.
ElevenLabs, OpenAI, Google, Microsoft, and a dozen more, behind one account. Your script flows in; the right model answers, line by line.
- 30+ models
- One account
- One pipeline
We benchmark, so you don't.
No model wins every language. We benchmark them all — on naturalness, noise, and cost — then route each run to your best pick.
- 30+ models
- Per language
- Performance or cost
We clean the text first.
Addresses, prices, dates, and abbreviations make every TTS model stumble. We fix them in every language before synthesis, so the model pronounces your script the way you meant it.
- The most common cause of misreads
- Fixed before synthesis, in every language
- About half of voice errors, gone
thirty forty-twoSaintLuisStreetNorth West
One wrong name ruins the take.
Mispronounce a brand, a drug, or a name and the whole line is unusable — the first thing generic TTS gets wrong. Our 4-million-word dictionary teaches the model to say the hard words right, in any language.
- Brand and product names
- Complex medical and drug terms
- Hard names, in any language
Every line, validated.
Every line comes back scored: naturalness, word accuracy, noise, pronunciation. Miss the bar and it regenerates automatically until it clears, in any language. You set the bar. We hold it.
- Four scores on every line
- Failed lines retry themselves
- One bar across every language
Three steps to your voice.
The difference is what you can do with it.
Add nodes
Drop in voice, emotion, pacing, and style nodes from the library.
Connect
Wire nodes together to shape exactly the voice you want.
Run workflow
Render the pipeline and export production-ready audio in seconds.