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.
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.
Numbers, dates, currency, and abbreviations are what make TTS stumble. We rewrite them into clean spoken form before synthesis — cutting voice errors by about half.
- $1,250 → one thousand two hundred fifty dollars
- Dates, symbols, and shorthand handled
- ~50% fewer errors, zero effort from you
one thousand two hundred fifty dollars · doctor · March fourth
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.
Before anything ships, each line is scored on four axes. Anything that falls short is flagged for a re-take — so you ship with confidence, not hope.
- Naturalness and word accuracy
- Background noise
- Pronunciation
Every top TTS model, in one place.
No benchmarking, no model-picking. We measure them continuously and auto-route every line to the best model for your language.
From flat surface to layered depth.
The difference is what you can do with it.
One flat layer.
Pick a voice. That's the whole stack.
Layers you can compose.
Stack voice, emotion, pacing, and style. Tune each.
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.
Used across industries.
“Let's go, team. The final boss won't wait.”
Generate dynamic NPC voices, in-game cinematics, and localized dialogue with consistent character identity.
“He turned slowly. The room had gone still.”
Produce voiceovers, ADR replacements, and multilingual dubs while preserving the original performance.
“In a quiet town, nothing was ever quiet for long.”
Narrate long-form content with natural pacing and emotional range, at a fraction of studio cost.
“The future of voice, here.”
Scale ad creative across regions and demographics with brand-safe voice variations on demand.
“Today, we explore the basics of calculus.”
Create clear, engaging instructional voices for courses and tutorials in any language.