Google Cloud Text-to-Speech vs Voice.ai
Google Cloud Text-to-Speech
cloud.google.com
Voice.ai
voice.aiSide by side
| Figure | Google Cloud Text-to-Speech | Voice.ai |
|---|---|---|
| Price from | $4/mo | $5/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 14 | 8 |
| Spec score · Text-to-speech tools | 9.2 (#8) | 9.2 (#10) |
| Spec score · Text-to-Speech Software | 9.0 (#13) | 8.7 (#31) |
| Spec score · Voice Ai Tools | 8.9 (#3) | 8.7 (#8) |
| Documentation depth | Documentation includes product basics, quickstarts, SSML tutorials, voice catalogs, API references, authentication, samples and release notes. | The API reference documents REST endpoints, request schemas, bearer authorization, agent configuration, webhooks, phone settings and knowledge-base IDs. |
| Free plan | No | Yes |
| Security and compliance | Google Cloud says it maps security, privacy, and compliance controls to standards and undergoes independent verification through certifications, attestations, and audit reports. | Enterprise pricing lists DPA and SLA assurances, HIPAA business associate agreements and custom SSO. |
| Voice cloning | Yes | Users can create voice models for real-time conversion or text-to-speech, with paid plans adding instant-clone capacity. |
| What it does | Cloud Text-to-Speech converts text or SSML input into natural human speech audio. | Voice.ai provides AI voice changing, text-to-speech, voice cloning, audio tools and voice-agent services. |
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.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
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.
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.