Best for
Best for developers on Google Cloud who need speech synthesis in an application and want to pick their own quality and price point.
- Freelancers
- Small and mid-sized
- Enterprise
AI Voice & Speech Comparison
Google Cloud Text-to-Speech vs. Read AI
At a glance
At a glance
Best for
Best for organisations that want meetings, email and messages searchable in one place, and metrics on how the meetings themselves are being run.
- Freelancers
- Small and mid-sized
- Enterprise
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Google Cloud Text-to-Speech | Read AI |
|---|---|---|
| Starting price | lower value Free tier, then from $4 per 1 million characters Pay-as-you-go by characters sent for synthesis, counting spaces, newlines and most SSML tags, with a free monthly allowance per voice type. Standard and WaveNet $4 per 1 million characters, free to 4 million a month. Neural2 and Polyglot $16, Chirp 3 HD $30 and Studio $160, each free to 1 million a month. Instant Custom Voice $60 with no free allowance. Gemini-TTS is billed per token instead, from $0.50 per 1 million input text tokens and $10 per 1 million output audio tokens, also with no free allowance. | Free plan; Pro $19.75 / user / month Pro is $15 per user per month billed annually. Enterprise is $29.75 monthly or $22.50 annually, Enterprise+ $39.75 monthly or $29.75 annually and requires five or more licences. Every plan is measured on 30 meetings a month. |
| Free trial | Free monthly allowance: 4 million characters on Standard and WaveNet voices, 1 million on Chirp 3 HD, Neural2, Polyglot and Studio voices | Free plan with 5 meeting transcripts a month |
| Output | Synthesised speech, single request, streaming or long-form, as LINEAR16, MP3, OGG_OPUS, ALAW, MULAW, PCM or M4A | Meeting reports with summary, topics, action items, key questions and a speaker-separated transcript |
| API | Yes, the Cloud Text-to-Speech API with client libraries and a command-line path | Yes, plus an MCP server and Claude and ChatGPT connectors |
| Languages | Google's own figure is 220+ voices across 40+ languages | Meeting reports in 16+ languages |
| Hosting | Cloud (Google Cloud), with a global endpoint and regional endpoints | Cloud, with Windows, macOS, Android and iOS apps and a Chrome extension |
| Voice cloning | Yes, Chirp 3 Instant Custom Voice builds a personal voice model from a short high-quality recording, usable afterwards for streaming and long-form synthesis. Access is restricted to allow-listed customers and is arranged through the sales team rather than self-service. A cloning key created for en-US can also speak German, US and European Spanish, Canadian and European French and Brazilian Portuguese | No, Read AI transcribes, summarises and measures meetings and does not synthesise or clone voices |
| Real-time use | Yes, bidirectional streaming synthesis for live use, alongside ordinary single requests and a separate long-form path for large documents | Yes, an in-meeting dashboard with live notes, transcription, summaries and meeting metrics as the call runs, on Zoom, Microsoft Teams and Google Meet |
| Speech-to-speech and dubbing | No. This service synthesises speech from text only. Recognition is the separate Speech-to-Text service and translation the separate Translation AI service | No dubbing or speech-to-speech translation |
| Editing and controls | SSML, pace control from 0.25x to 2x, experimental pause tags and custom pronunciation in IPA or X-SAMPA phonetic encoding, device profiles that tune output for the playback hardware, and text-based prompting on the Gemini-TTS models, which take a written description of the delivery rather than markup | Meeting reports with summary, topics, action items and key questions, a meeting coach scoring talking speed, filler words, bias and charisma with coaching trends, audio and video playback with highlights from the Enterprise plan, Ask Read search across meetings, email and messages with direct access to Anthropic and OpenAI models, audio and video uploads, and workspace rules controlling which meetings Read joins |
| Consent and trust | Instant Custom Voice sits behind an allow list that is granted by the sales team, and enrolment requires the speaker to record a consent statement that Google supplies in the language being cloned, in English: "I am the owner of this voice and I consent to Google using this voice to create a synthetic voice model." The recording is part of the enrolment, so a voice cannot be cloned from found audio | Custom assistant branding, naming on all platforms and a logo on Zoom, plus workspace distribution and sharing rules; Enterprise+ adds SAML SSO, SCIM provisioning, domain capture, a custom data retention policy and HIPAA compliance support |
| MCP-ready | No | stated Yes |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Not stated | Email helpdesk |
| Onboarding | Documentation and knowledge base | more entries Documentation and knowledge base, Guided onboarding |
| Company size | Freelancers, Small and mid-sized, Enterprise | Freelancers, Small and mid-sized, Enterprise |
| Integrations | Not stated | Zoom, Microsoft Teams, Google Meet, HubSpot, Salesforce, Jira, Confluence, Notion, Asana, Slack, Zapier, ChatGPT, Claude |
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The short version
Key Differences
- Starting price Google Cloud Text-to-Speech Free tier, then from $4 per 1 million characters Read AI Free plan; Pro $19.75 / user / month
- Free trial Google Cloud Text-to-Speech Free monthly allowance: 4 million characters on Standard and WaveNet voices, 1 million on Chirp 3 HD, Neural2, Polyglot and Studio voices Read AI Free plan with 5 meeting transcripts a month
- Hosting Google Cloud Text-to-Speech Cloud (Google Cloud), with a global endpoint and regional endpoints Read AI Cloud, with Windows, macOS, Android and iOS apps and a Chrome extension
- Languages Google Cloud Text-to-Speech Google's own figure is 220+ voices across 40+ languages Read AI Meeting reports in 16+ languages
- MCP-ready Google Cloud Text-to-Speech No Read AI Yes
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Google Cloud Text-to-Speech
Strengths
- One API spans cheap legacy voices at $4 per million characters and current HD voices at $30
- Gemini-TTS takes a written prompt for the delivery instead of hand-written SSML markup
- Free monthly character allowance on every voice type except Gemini-TTS and custom voices
- Bidirectional streaming, single request and long-form synthesis from the same service
- Voice cloning requires a recorded consent statement from the speaker, in their own language
Limitations
- Text to speech only: recognition and translation are separate Google Cloud services
- Instant Custom Voice is restricted to allow-listed customers and goes through sales
- Studio voices cost $160 per million characters, forty times the Standard rate
- Gemini-TTS is billed per token rather than per character, so the two price models do not compare directly
- The overlapping generations of voice model take some reading before the right one is obvious
Read AI
Strengths
- Live notes and meeting metrics while the call is still running
- Meeting coach and trend reporting on how meetings themselves are run
- Search spans meetings, email and messages rather than calls alone
- MCP server with Claude and ChatGPT connectors
Limitations
- Free plan is capped at five meeting transcripts a month
- Audio and video playback only from the Enterprise plan up
- Meeting length is capped by plan, from one hour on Free to eight on Enterprise+
- SSO, SCIM, HIPAA support and data retention policies need Enterprise+ and five or more licences
Plans
Pricing
Google Cloud Text-to-Speech
- Standard and WaveNet voices $4 Per 1 million characters. Free for the first 4 million characters a month.
- Neural2 and Polyglot voices $16 Per 1 million characters. Free for the first 1 million characters a month. Polyglot is in preview.
- Chirp 3: HD voices $30 Per 1 million characters. Free for the first 1 million characters a month.
- Chirp 3: Instant Custom Voice $60 Per 1 million characters. No free allowance, and access is restricted to allow-listed customers.
- Studio voices $160 Per 1 million characters. Free for the first 1 million characters a month. A legacy model.
- Gemini-TTS Not stated Billed per token with no free allowance. Gemini 2.5 Flash TTS costs $0.50 per 1 million input text tokens and $10 per 1 million output audio tokens; Gemini 2.5 Pro TTS and Gemini 3.1 Flash TTS (preview) cost $1.00 and $20.00 respectively. Audio tokens correspond to 25 tokens per second of audio.
Read AI
- Free $0 Five meeting transcripts a month, best-in-class summaries for meetings, email and messaging, personalised meeting coach, basic integrations, topic readouts and one-hour maximum meeting length.
- Pro $19.75 Per user per month, $15 billed annually. Unlimited meeting transcripts and reports, priority report processing, 100 file upload credits a month and premium integrations including Notion, Salesforce, HubSpot, Jira, Confluence, Zapier and webhooks.
- Enterprise $29.75 Per user per month, $22.50 billed annually. Adds audio and video playback, video highlights, 200 file upload credits a month and premium support.
- Enterprise+ $39.75 Per user per month, $29.75 billed annually, five licences or more. Adds HIPAA compliance, SAML and SCIM, domain capture, a custom data retention policy, 300 file upload credits a month and workspace onboarding.
What users say
Review Scores · opens after launch
Google Cloud Text-to-Speech
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Read AI
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Where this comes from
Google Cloud Text-to-Speech https://cloud.google.com/text-to-speech · checked against the official source on 2026-09-13
Read AI https://www.read.ai · checked against the official source on 2026-09-16
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.