Google Cloud Text-to-Speech vs Voice RSS
Google Cloud Text-to-Speech
cloud.google.comVoice RSS
voicerss.orgSide by side
| Figure | Google Cloud Text-to-Speech | Voice RSS |
|---|---|---|
| Price from | $4/mo | $5/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Plans published | 14 | 8 |
| Spec score · Text-to-speech tools | 9.2 (#8) | 8.5 (#60) |
| Spec score · Text-to-Speech Software | 9.0 (#13) | 8.2 (#96) |
| API access | Yes | The API accepts HTTP GET and HTTP POST requests over HTTP or HTTPS. |
| Export formats | MP3,LINEAR16,OGG_OPUS,MULAW,ALAW | MP3,WAV,AAC,OGG,CAF |
| Free plan | No | Yes |
| Integrations | GetApp lists integrations including Cloud Vision API, YouTube, Unity and Studio. | The maker offers SDKs for some popular programming languages and platforms to wrap the Text-to-Speech API and speed integration. |
| Platforms | web,api | web,api |
| Purpose | The API converts text into natural-sounding speech and can accept text or SSML input to produce audio data. | Voice RSS provides a cloud text-to-speech API that converts textual content into audio without software installation. |
| Speech controls | The API supports pitch adjustment up to 20 semitones, speaking rates up to four times faster or slower than normal, and volume gain from -96 dB to +16 dB. | API parameters include voice selection, speech rate from -10 to 10, audio format, and optional SSML input. |
| Use cases | Google describes use cases including contact-center voicebots, voice generation in devices, and accessible electronic program guides. | The maker describes use with documents, web content, RSS feeds, and applications that provide auditory information while users' eyes are occupied. |
Plans
Google Cloud Text-to-Speech
- Standard voices$4 a month
- WaveNet voices$4 a month
- Neural2 voices$16 a month
- Polyglot voices$16 a month
- Chirp 3: HD voices$30 a month
- Studio voices$160 a month
- Instant custom voice$60 a month
- Gemini 2.5 Flash TTS and Gemini 2.5 Flash-Lite Preview TTSPrice not published
- Gemini 3.1 Flash TTSPrice not published
- Gemini 2.5 Flash TTS / Gemini 2.5 Flash-Lite Preview TTSPrice not published
Voice RSS
- FreeFree
- Advanced$5 a month
- Premium$15 a month
- Premium Plus$40 a month
- Business$120 a month
- Enterprise$300 a month
- FREEFree
- CustomPriced on request
In their own words
Google Cloud Text-to-Speech
Google Cloud Text-to-Speech is an API that converts text or SSML into audio data for applications. It offers more than 380 voices across more than 75 languages and variants, with REST or gRPC integration and output formats including MP3, LINEAR16, OGG_OPUS, MULAW, and ALAW. Gemini-TTS supports single- or multispeaker speech guided by natural-language prompts for style, accent, pace, tone, and emotional expression. Chirp 3 instant custom voice can create a personalized voice model from as little as 10 seconds of audio and is available in more than 30 locales. Streaming synthesis supports real-time conversations, while long-audio synthesis accepts up to 1 million bytes of input. Speech controls include pitch, speaking rate, and volume gain. Billing counts input characters, including spaces, newlines, and SSML tags except the mark tag, and billing must be enabled. Standard and WaveNet voices cost US$4 per 1 million characters, with 0 to 4 million characters free. Other voice models have different rates and free-use limits. New customers can receive $300 in Google Cloud credits.