Confucius4-TTS vs Voice.ai
Confucius4-TTS
github.com
Voice.ai
voice.aiSide by side
| Figure | Confucius4-TTS | Voice.ai |
|---|---|---|
| Price from | — | $5/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 8 |
| Spec score · Text-to-speech tools | 7.9 (#119) | 9.2 (#10) |
| Spec score · Text-to-Speech Software | 7.9 (#119) | 8.7 (#31) |
| API | A FastAPI server provides non-streaming and streaming TTS endpoints that accept text, a language code and a reference audio upload. | Voice.ai lists an API offering for voice agents, voice cloning, and text-to-speech. |
| Languages | The project lists support for 14 languages: Chinese, English, Japanese, Korean, German, French, Spanish, Indonesian, Italian, Thai, Portuguese, Russian, Malay and Vietnamese. | The PC page says voices repeat speech back in the speaker’s language. |
| Product | Confucius4-TTS is an LLM-based multilingual and cross-lingual zero-shot text-to-speech engine. | Voice.ai offers real-time AI voice transformation for PC, plus text-to-speech and online audio tools. |
| Voice cloning | It supports zero-shot voice cloning without requiring a reference transcript or additional training. | Users can create voice models for real-time conversion or text-to-speech, with paid plans adding instant-clone capacity. |
Plans
Voice.ai
- FreeFree
- Starter$5 a month
- Launch$12 a month
- Core$99 a month
- Scale$330 a month
- Business$880 a month
- FreeFree
- EnterprisePriced on request
In their own words
Confucius4-TTS
Confucius4-TTS has no write-up on Specifiction yet; its figures are above.
Voice.ai
Voice.ai provides real-time AI voice transformation for PC, alongside text-to-speech and online audio tools. Its PC app describes its voice engine as deep-learning based and lets users hear a changed voice in real time. A library of user-generated voices and voice cloning are also listed. Voice.ai says transformed speech is returned in the speaker’s language. On Windows, it can work with microphone-enabled apps such as Discord, Zoom, Google Meet, WhatsApp, Skype and Twitch, plus games including Minecraft and Fortnite. The platform listing includes Windows, Mac, iOS and Android, while its API offering covers voice agents, cloning and text-to-speech. The free plan includes 5k credits/month and a five-minute audio conversion limit. Starter costs $5 a month and includes 15k credits/month and five instant voice clones. Higher plans add credits, clones, concurrent generation and agent-call capacity, with priority support on Core and technical success manager support on Business.