Seed Audio

Seed Audio is an AI text to speech and voice generator powered by ByteDance Seed Speech models and Seed Audio 1.0. It converts written scripts into natural, emotional speech and can clone a consented voice from just seconds of audio, enabling a consistent brand voice across every project.

What is Seed Audio?

Seed Audio is a hosted AI text to speech and voice generator that turns any text input into lifelike spoken audio. It supports dozens of languages and accents, and allows instant voice cloning from a short consented sample. Developed by ByteDance, the platform runs entirely in the cloud, requiring no local models or GPU setup.

Key Features

• Realistic text to speech – Generate speech with human-like emotion, emphasis, and pacing using Seed Audio 1.0 models.
• Instant voice cloning – Recreate a consented voice from under 2 minutes of audio; each clone stays private to your account.
• 300+ lifelike voices – Choose from a library covering dozens of languages and regional accents.
• Voice design controls – Adjust emotion, speed, and tone of any voice to match your script’s mood.
• Low-latency developer API – Stream speech via a simple REST API for apps, voice agents, and IVR systems.
• Commercial-ready output – Download high-quality audio with full commercial usage rights.

Who is it for?

• Content creators (video & podcasts) – Narrate YouTube videos, ads, and explainers without re-recording; regenerate single lines instantly when scripts change.
• App developers – Add spoken replies to assistants, games, and accessibility features using the fast API.
• Course teams – Clone one narrator and voice entire lesson catalogs with consistent warmth, cutting production time from days to hours.

What can you do with Seed Audio?

• Video voiceovers – Paste a script, pick a voice, and export audio for YouTube, ads, or explainers in seconds.
• Podcasts & audiobooks – Turn long-form scripts into hours of steady narration with uniform tone and pronunciation.
• Voice cloning – Upload a consented sample to build a private voice for reuse across every project.
• Apps & voice agents – Call the API to stream low-latency speech for conversational interfaces.

Pricing

Seed Audio is freemium. Free accounts generate up to 120 characters per conversion. Paid plans (Basic $4.95/mo annual, Pro $14.95/mo annual, Enterprise $24.95/mo annual) raise the limit to 1,000 characters per conversion and include credits for voice cloning and design. One-time credit packs are also available.

FAQ

Is Seed Audio free?

Yes, you can try it free with no credit card. Free tier supports 120 characters per conversion and includes a limited set of voices.

How does voice cloning work?

You upload a short consented audio sample (e.g., a few seconds), and Seed Audio builds a private clone that can be reused across projects. Clones require consent and stay in your account.

Can I use Seed Audio audio commercially?

Yes, all generated audio comes with commercial usage rights, so you can publish to clients and platforms without additional licensing.