All-in-one AI video generator, timeline editor, and Seedance 2.5 studio for creators and marketers.
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Gradium records 55,266 monthly visits with +55.5% month-over-month growth and Freemium, Contact for Pricing pricing. Speechify records 5,457,475 monthly visits with +0.5% growth and Freemium pricing.

Real-time voice AI APIs with 50 ms to first audio
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | gradium.ai | speechify.com |
| Pricing Model | Freemium, Contact for Pricing | Freemium |
| Monthly Visits | 55.27K (55,266) | 5.46M (5,457,475) |
| MoM Traffic Delta |
| +19.72K (+55.5%) |
| +24.71K (+0.5%) |
| Primary Market & Share | 🇺🇸 United States (34.1%) | 🇺🇸 United States (55.2%) |
|---|
| Direct Visits / mo | 14.51K | 2.84M |
|---|
| User Rating | 5 | 5 |
|---|
| Supported Platforms | Website | Website |
|---|

Real-time voice AI APIs with 50 ms to first audio
Text-to-speech, speech-to-text, and live speech-to-speech translation reach roughly 50 ms to first audio, tuned for conversational agents rather than batch processing.
Clone a voice from a short sample for everyday use, move up to pro cloning for production quality, or generate a brand-new voice from a text description.
WebSocket streaming, Python and Rust SDKs, custom vocabulary, semantic VAD, and code-switching support make integration straightforward for agent builders.
Phonon is Gradium's openly available TTS model that runs on-device for offline or privacy-sensitive deployments.
Text to speech and voice AI across every device
Listen to books, PDFs, documents and web pages read aloud in a large library of lifelike AI voices.
Dictate instead of typing in almost any app, across Google Docs, Gmail, Slack, Outlook and more.
Turn documents or a short prompt into an AI podcast, and get instant summaries of what you are reading.
Use the web app, Chrome and Edge extensions, and native iOS, Android, Mac and Windows apps.
All-in-one AI video generator, timeline editor, and Seedance 2.5 studio for creators and marketers.
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