OpenAI and Gemini voices on one account — 59 languages, directed in plain words.
Also available on mobile
Precise tools for the perfect performance.
OpenAI TTS covers 57 languages and Gemini adds more — 59 between them, from a single voice list.
Describe the delivery you want — warm and unhurried, brisk and factual, a hushed aside — and the engine reads it that way.
Turn a script into a finished video: generated scenes, your voiceover on top, subtitles and music mixed in one render.
Powered by neural synthesis
ProsodyAI runs two text-to-speech engines side by side — OpenAI & Google Gemini. Switch per project, on one account, with one quota.
Broadest language reach
Best for: Multilingual projects and polished narration
Try OpenAI TTSFast, conversational delivery
Best for: Quick turnarounds and conversational tone
Try Google Gemini TTSAsk for a slower, warmer or brisker read in plain words; the engine follows the direction.
59 languages across OpenAI and Gemini, chosen from one voice list and billed from one allowance.
Bulk generation, a REST API with webhooks, and paid plans served first in the queue.
Pick the engine per project rather than per subscription. One account, one quota, and no second API key to manage — switch mid-project when a script wants a different read.
Describe the delivery in plain words and the engine reads it that way — warm and unhurried, brisk and factual, a hushed aside.
The same request shape for both engines, so changing your mind about the voice does not mean changing your code.
All paid plans start with a free trial of 1,000 premium characters. No payment until you’re ready.
1,000 premium characters to try, one time
No credit card required. The 1,000 characters are one-off; a paid plan adds a monthly allowance.
Get Started FreeHobbyists & personal projects
1,000 premium chars free trial · pay when ready
Content creators & podcasters
1,000 premium chars free trial · pay when ready
Studios & production teams
1,000 premium chars free trial · pay when ready
Large-scale organizations
Everything you need to know about ProsodyAI. Can’t find your answer? Contact us.
ProsodyAI runs the OpenAI and Google Gemini neural TTS engines, which produce speech virtually indistinguishable from a human recording.
Across both engines ProsodyAI covers 59 languages. OpenAI TTS supports 57 — including English, Turkish, French, German, Spanish, Portuguese, Italian, Dutch, Polish, Russian, Chinese, Japanese, Korean, Arabic, Hindi and more — and Google Gemini TTS adds regional voices such as Indonesian, Vietnamese, Thai, Ukrainian, Bengali and Tamil.
Two engines on a single account: OpenAI TTS (gpt-4o-mini-tts, 57 languages), and Google Gemini TTS (30 studio voices, low-latency generation). You pick the engine per project — no separate API keys, no separate subscriptions.
OpenAI TTS gives the widest language reach and the most polished, studio-grade read — best for multilingual narration. Google Gemini TTS is the fastest and most conversational, best for quick turnarounds. OpenAI and Gemini also accept plain-language style instructions, so you can simply tell the AI to sound warm, slow or excited.
Yes. Both engines follow an emotion written into the direction — “excited, like announcing a winner”, “sad and quiet”, “warm and reassuring”. There is no preset emotion menu; you describe the feeling in your own words, as precisely as you like.
Everything travels over TLS, and passwords and API keys are stored only as hashes. We process personal data under GDPR and KVKK, and you can delete your account and its data at any time.
Rate limits depend on your plan, and paid plans are served first in the generation queue. If an integration needs more headroom, contact us and we will size it with you.
Yes. All paid plans include full commercial usage rights for generated audio. You own the output and can use it in podcasts, videos, apps, games, advertisements, and any other commercial project without additional licensing fees.
Typical generation latency is under 3 seconds for short texts. Longer content is automatically chunked and processed in parallel. Our infrastructure keeps performance consistent under load.
Yes. A new account gets 1,000 premium characters to try, once, plus access to every built-in voice. No credit card required. Upgrade any time for a monthly allowance, video, bulk generation and priority processing.
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Our team typically responds within 2 hours.
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