Google Cloud Text-to-Speech vs VoiceKeep
Google Cloud Text-to-Speech
cloud.google.com
VoiceKeep
voicekeep.ioSide by side
| Figure | Google Cloud Text-to-Speech | VoiceKeep |
|---|---|---|
| Price from | $4/mo | $5/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 14 | 5 |
| Spec score · Game Voice Generators | 8.8 (#9) | 7.6 (#32) |
| API access | Yes | The REST API supports voice management, text-to-speech, conversations, and audiobook creation; API keys are available on Pro and Studio. |
| Audio formats | The service can return formats including MP3, Linear16 and OGG Opus. | The FAQ says single generations are delivered as 48kHz WAV, conversations as merged WAV, and audiobooks as M4B; the free pricing tier lists MP3 download. |
| Integrations | GetApp lists integrations including Cloud Vision API, YouTube, Unity and Studio. | The maker describes M4B exports as compatible with Apple Books, Audible, and other audiobook players, and offers API integration for apps. |
| Security | Google Cloud states that data is encrypted in transit and at rest with audited access to encryption keys. | The privacy policy says VoiceKeep uses TLS encryption in transit and access controls, and processes voice data on its own GPU infrastructure rather than sending it to third-party AI providers. |
| Voice cloning | Yes | Users can create a custom voice clone by uploading a short voice sample; the FAQ specifies a 5–25 second clip with a matching transcript. |
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
VoiceKeep
- FreeFree
- Starter$5 a month
- Creator$19 a month
- Pro$49 a month
- Studio$149 a month
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.