iSpeech vs MOSS-TTS
iSpeech
ispeech.orgMOSS-TTS
github.comSide by side
| Figure | iSpeech | MOSS-TTS |
|---|---|---|
| Price from | $0.25/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 15 | 0 |
| Spec score · Text-to-Speech Software | 9.2 (#6) | 7.8 (#133) |
| Spec score · Text-to-speech tools | 9.2 (#11) | 7.9 (#122) |
| API access | API access requires an API key, with mobile development, mobile production, and web/general production key types. | Yes |
| Commercial use | Yes | Yes |
| Company | iSpeech describes itself as a privately held company headquartered in Newark, New Jersey, with an office in San Francisco, California. | MOSI says Shanghai Mosi Intelligent Technology Co., Ltd. is headquartered in Shanghai and was incubated by the Shanghai Innovation Institute and Fudan University's OpenMOSS team. |
| Export formats | aiff,mp3,ogg,wma,flac,wav,alaw,ulaw,vox,mp4 | WAV |
| Languages | The homepage says the Speech API supports text-to-speech and speech recognition in more than 30 languages. | MOSS-TTS v1.5 supports 31 languages and multilingual or code-switched synthesis. |
| Platforms | web,ios,android,api | api,self_hosted |
| Product | iSpeech provides text-to-speech and automated speech recognition services through APIs, SDKs, and online tools. | MOSS-TTS is an open-source model family for long-form speech, dialogue synthesis, voice design, sound effects, and real-time streaming TTS. |
| Support | The developer pricing page lists priority technical support with purchases; the API guide directs support requests to [email protected]. | The maker lists [email protected] as a contact address for inquiries and feedback. |
| Voice controls | TTS requests support selectable voices, audio formats, bitrates, frequencies, playback speed, pitch, padding and bit depth. | MOSS-TTS-v1.5 supports zero-shot voice cloning, token-level duration control, Pinyin and IPA pronunciation control, multilingual synthesis, code-switching, and inline pause markers. |
Plans
iSpeech
- Plus$2.95 a month
- Premium$3.95 a month
- Pay Per Use$50 a month
- Pay Per Install$0.25 a month
- BasicFree
- HackerFree
- Plus$2.95 a month
- Premium$3.95 a month
- Junior$29 a month
- Pay-per-use 2,000 credits$50, paid once
In their own words
iSpeech
iSpeech provides text-to-speech and automated speech recognition through APIs, SDKs, and online tools. Its speech API can synthesize audio with multiple voices, formats, bitrates, frequencies, and playback speeds, and supports MathML and SSML. The API can also transcribe submitted audio across multiple languages and recognition models; iSpeech says custom models can be created. The homepage lists support for more than 30 languages. Audio downloads are available in AIFF, MP3, OGG, WMA, FLAC, WAV, A-law, μ-law, VOX, and MP4 formats. Listed access includes Android, iOS, Linux, macOS, web, Windows, API, and extension. The Basic plan is free for personal use, and commercial use is listed as available. Plus costs $2.95 a month, billed monthly, and includes 30-minute recordings, approximately 4,167 words. Premium costs $3.95 a month, billed monthly, with 12-hour recordings, approximately 100,000 words. Pay Per Use costs $50 a month for dynamic TTS usage only and includes 2,000 credits. Pay Per Install costs $0.25 a month and has a 10,000-install minimum.