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DocumentationAPI Reference
DocumentationAPI Reference
    • Studio
    • Discord
    • Blog
    • Changelog
  • Getting Started
    • Introduction
    • Quickstart
    • Free Trial
  • Product
    • How AI Lip Sync Works
    • Use Cases
    • Billing
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    • Experimental features
    • Generation Times & Performance
    • Troubleshooting
  • Compatibility and Tips
    • Web Browser Support
    • Media Formats Support
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    • Improving Lip Sync Quality
  • WebApp Guides
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  • Developer Guides
    • SDKs
    • Python SDK Guide
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    • Segments
    • Error Handling
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    • Example Projects
  • Tutorials
    • Dubbing
    • Video Dubbing API Guide
    • Video Translation API Guide
    • Text-to-Speech Lip Sync
    • Personalized Video Messaging
    • Translation/Dubbing
  • Plugins & Extensions
    • MCP Server
    • ComfyUI
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On this page
  • What’s included
  • Get started
  • After the free trial
  • Frequently Asked Questions
Getting Started

Free Trial

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Last updated May 15, 2026

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Lipsync models

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Built with

Try Sync Labs’ AI lip sync with no commitment and no credit card. Every free account gets access to all lipsync models so you can evaluate quality before subscribing.

What’s included

Lip sync generations3 per month
Max duration per generation20 seconds (15 seconds for sync-3)
Text-to-speech generations10 per month
Available modelsAll lipsync family models including lipsync-2-pro and 1 sync-3 generation
Credit card requiredNo
AccessStudio and API

Get started

1

Create a free account

Sign up at sync.so/signup — no credit card required.

2

Try it in Studio or API

Use the Studio for a no-code experience, or grab your API key from Settings to use the API or SDKs.

3

Generate your first lip sync

Upload a video and audio, pick a model, and generate. See the Quickstart for a step-by-step walkthrough.

After the free trial

When you’re ready for more, subscribe to a plan. Subscriptions unlock:

  • Higher concurrency and longer video durations
  • Premium features like reasoning mode and automatic speaker detection
  • Access to react-1 for expressive lip sync with emotions
  • Usage-based billing — pay only for what you generate

See the Billing page for full plan details.

Frequently Asked Questions

Do free generations roll over to the next month?

No. Unused free generations do not roll over. You receive 3 fresh lip sync generations and 10 text-to-speech generations each calendar month.

Can I use lipsync-2-pro on the free trial?

Yes. All lipsync family models are available on the free trial, including lipsync-2-pro. The limits are 20-second max duration, 3 generations per month, and of those 3 generations, at most 1 can be sync-3 (15 seconds max).

What happens if I subscribe mid-month?

Once you subscribe, you move to usage-based billing immediately. There is no monthly free generation allowance on paid plans — you pay for what you generate.

Is sync-3 available on the free trial?

Yes. You get 1 sync-3 generation per month with a 15-second max duration (compared to 20 seconds for other lipsync models). This lets you evaluate sync-3’s advanced capabilities before subscribing.

Is react-1 available on the free trial?

No. react-1 requires a paid subscription. On the free trial, you can use any lipsync family model (lipsync-1.9.0-beta, lipsync-2, lipsync-2-pro) and sync-3.

Do I need a credit card to sign up?

No. You can create a free account and start generating without providing payment information.