Onepin
Onepin is an AI voice production agent and orchestration layer that turns scripts into publish-ready audio. It routes each line across TTS models, normalizes text, corrects pronunciation, validates quality, and fixes or regenerates lines before delivery, with a focus on multilingual production.
At a Glance
- Game studios
- Audiobook publishers
- Localization and dubbing teams
- E-learning companies
- +4 more
AI Tools by Onepin
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Onepin
AI Voice Production Agent
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Latest News
Onepin published a guide on handling TTS API rate limits, concurrency, and HTTP 429 errors at scale.
Onepin published a guide to TTS text normalization for numbers, dates, and currencies.
Onepin published its 2026 voice-AI platform cost guide covering pricing models, overages, and cost optimization.
Onepin published an explanation of multi-model TTS routing, fallbacks, and provider optimization.
Products & Services
A production layer above TTS that plans a script, chooses and routes lines to suitable models, normalizes text, applies pronunciation correction, scores audio for word accuracy, naturalness, clarity, and pronunciation, and repairs or regenerates failed lines.
Developer access to the validated voice pipeline through an API, command-line interface, SDK, and agent/MCP interfaces.
Market Position
Onepin positions itself as the quality-control and orchestration layer above TTS rather than as a voice model. It differentiates from direct use of ElevenLabs, Google, OpenAI, and other single providers by routing line by line, validating every output, and fixing pronunciation and normalization errors; a third-party comparison also names Speechify, Murf, OpenRouter, Together AI, and fal.ai as alternatives or adjacent options.
Leadership
Founders
Soohyun Bae
Founder and CEO of Onepin and founder/CEO of Podonos; the public profile identifies Bae as a Georgia Tech PhD and YC alum. Onepin says it was built by the team that created Podonos, a voice-AI measurement company.
Executive Team
Soohyun Bae
Founder & CEO
Founder/CEO of Podonos and the person credited by Onepin with creating the product; public profile materials identify a Georgia Tech PhD and YC background.
Founding Story
During the pandemic, Soohyun Bae tried to turn books into listenable audio and found that AI voices mispronounced names, flattened emotion, and broke on complicated sentences. Onepin was created on top of Podonos's voice-quality measurement work to provide the missing production layer: selecting, guiding, checking, and fixing model output so it is usable in any language.
Business Model
Revenue Model
Credit-based subscriptions for validated voice generation, with generation and validation bundled into one credit. Self-serve customers pay monthly or annually; usage beyond paid-plan allowances is metered as overage, while Enterprise uses custom credit volumes and terms. Seats are free on every plan.
Pricing Tiers
1,000 one-time credits; one workspace; 1 GB storage; 10 languages; no overage; in-app playback but no download/export.
3,000 credits/month; 3 concurrent runs; 100 GB storage; email support; $0.010/credit overage. Annual billing saves 20%.
15,000 credits/month; 3 workspaces; 500 GB storage; BYOK; email plus Slack support; $0.008/credit overage.
50,000 credits/month; 10 concurrent runs; 5 workspaces; 1 TB storage; lowest overage rate of $0.007/credit.
Custom credits, unlimited seats and workspaces, pooled credits, commercial use on every model, SAML SSO, DPA/BAA options, custom retention, 99.9% SLA, and dedicated support.
Target Markets
- Game studios
- Audiobook publishers
- Localization and dubbing teams
- E-learning companies
- Advertising and marketing teams
- AI video and voice-agent companies
- Multilingual game dialogue and localization
- Audiobook narration
- E-learning and training courses
- Advertising and product videos
- Voiceovers for AI-generated video
- AI voice agents and customer-support audio
- HeyGen
- Hyundai Motor Group
- Sierra
- Bland