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Onepin
AI voice production agent: routes scripts to 30+ TTS models, fixes pronunciation and validates every line.
What is Onepin?
Onepin is for product, L&D, healthcare, support and media teams that ship AI voiceovers and cannot afford a misread name, number or drug term. Its one job: take a script, clean it (addresses, prices, abbreviations), apply a 4M-word pronunciation dictionary, route each line to the best of 30+ TTS models for that language, then score every line for naturalness, word accuracy, clarity and pronunciation and auto-fix the misses. Seats are unlimited on every plan; you pay in credits (100 to the dollar) that cover generation and validation together. Where it falls short: 10 languages today, the Free plan cannot download or export audio, credits do not roll over on self-serve plans, and the final timbre still comes from the underlying providers rather than a voice of Onepin's own.
- Teams shipping multilingual voiceovers that must pronounce brand, drug and personal names correctly
- Studios producing several titles that want one account in front of 30+ TTS providers
- Developers who want validated TTS through an API, CLI, SDK or MCP server
- Free plan is listen-only: downloading or exporting audio needs a paid plan
- 10 supported languages at the time of listing
- Credits reset every cycle on self-serve plans; overage is metered at $0.007 to $0.010 per credit
What it does
- 01Text normalizerRewrites addresses, prices, dates and abbreviations before synthesis, in every supported language.
- 02Pronunciation correctorA 4M-word dictionary with phonetic spellings for brands, drug names and personal names.
- 03TTS auto-routingEach line goes to the best of 30+ TTS models for its language; models are benchmarked continuously.
- 04Four validators per lineNaturalness, word accuracy, clarity and pronunciation are scored on every line; misses are regenerated automatically.
- 05API, CLI, SDK and MCPAvailable on every plan, including Free, so agents can run the pipeline.
- 06Bring your own keyFrom the Studio plan, generation can run on your own TTS provider accounts.
Onepin pricing
Change log
What our crawler noticed on onepin.ai since listing.
- 17 Oct 2026✓Pricing matches pricing page (editor check)
- 17 Oct 2026+Listed after editor review
Questions about Onepin
What does Onepin cost?
Free is $0 with 1,000 one-time credits (about 15 minutes of validated audio, playback only). Paid plans billed yearly: Creator $16/mo (3,000 credits), Studio $80/mo (15,000 credits, BYOK) and Scale $240/mo (50,000 credits); monthly billing costs about 20% more. Enterprise is custom.
Do I own the audio and can I use it commercially?
Yes. Onepin assigns you every output and only routes to engines that permit commercial use; Enterprise agreements can add negotiated IP indemnity.
