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Sync Labs
What it is
Sync Labs provides an AI lip-sync API that generates matched mouth movements from video and audio inputs. Named uses include dubbing, localization, personalized video messaging, e-learning, marketing, entertainment, media, and gaming. Its listed models are lipsync-1.9, lipsync-2, lipsync-2-pro, react-1, and sync-3. The introduction lists 512×512 face resolution for lipsync-2 and lipsync-2-pro, and native 4K for sync-3. The models process audio waveforms rather than text and support spoken languages including tonal languages such as Mandarin and Thai.
Developers can use a REST API and official Python and TypeScript SDKs. Documented integrations include Adobe Premiere, DaVinci Resolve, ChatGPT, an MCP server, ComfyUI, and ElevenLabs. Inputs can be MP4 video with WAV or MP3 audio, provided by public URL, direct API upload, or media-library asset ID. The free plan includes three generations per month, each up to 20 seconds, and requires no credit card. Hobbyist costs $5.00 per month plus $0.05/sec; other paid plans are also listed with usage charges. Sync Labs says its watermarking technology can verify whether a video was modified using its technology.
For and against
For
- Free plan includes three monthly generations.
- REST API and official Python and TypeScript SDKs.
- Accepts MP4 video and WAV or MP3 audio.
- Sync-3 lists native 4K output.
- Documented integrations include Premiere and DaVinci Resolve.
Against
- Free plan limits generations to three per month.
- Free generations are limited to 20 seconds each.
- Hobbyist costs $5.00 per month plus $0.05/sec.
- Uploaded or generated content may be used to develop, train, and fine-tune AI models.
The verdict
Sync Labs pairs lip-sync generation with developer tools, multiple input methods, and named integrations. Review the free generation limits, paid usage charges, and content-processing terms before choosing a plan.
Who it suits
Sync Labs may suit developers building lip-sync workflows through an API or SDK, as well as teams working on dubbing, localization, or other listed media uses. Its free plan offers a small monthly allowance to start with.
Plans and prices
Free
3 lip-sync generations/month · 20 seconds each (15 seconds for sync-3) · 10 combined text-to-speech/dubbing generations · no credit card
Read 21 Oct 2026 · sync.so
Hobbyist
1-minute videos · 1 concurrent job · 3 voice clones · API and SDKs
Read 21 Oct 2026 · sync.so
Creator
5-minute videos · 3 concurrent jobs · 5 voice clones · own TTS API key
Read 21 Oct 2026 · sync.so
Growth
10-minute videos · 6 concurrent jobs · 15 voice clones · 5% usage discount
Read 21 Oct 2026 · sync.so
Scale
30-minute videos · 15 concurrent jobs · 50 voice clones · 20% usage discount
Read 21 Oct 2026 · sync.so
Enterprise
Custom terms and limits
Read 21 Oct 2026 · sync.so
On the record
- API limitation
- The TypeScript SDK is documented as server-side only because browser use would expose the API key.sync.so · read 21 Oct 2026
- Batch limit
- The introduction says batch processing supports up to 500 generations per batch on Scale+ plans.sync.so · read 30 Sep 2026
- Batch processing
- The API supports batches of up to 500 generations on Scale-plus plans.sync.so · read 21 Oct 2026
- Browser support
- Studio is officially tested on current Chrome, Firefox, Safari and Edge releases on Windows, macOS, Android and iOS/iPadOS.sync.so · read 21 Oct 2026
- Changelog update
- On September 30, 2026 Sync added generation time estimates, background Studio Lite processing and API re-downloads without regenerating.sync.so · read 21 Oct 2026
- Company
- The site identifies the maker as Synchronicity Labs, Inc. and lists an address in San Francisco, California.sync.so · read 30 Sep 2026
- Company facts
- LinkedIn lists Sync Labs as privately held, founded in 2023, headquartered in San Francisco and sized at 11–50 employees.linkedin.com · read 21 Oct 2026
- Company founders
- Crunchbase lists Pavan Reddy, Prady Modukuru, Prajwal K R and Rudrabha Mukhopadhyay as founders.crunchbase.com · read 21 Oct 2026
- Company legal name
- Crunchbase identifies the legal entity as synchronicity labs inc. and lists it as active and for-profit.crunchbase.com · read 21 Oct 2026
- Developer tools
- Sync Labs offers a REST API and official Python and TypeScript SDKs.sync.so · read 30 Sep 2026
- Dialogue editing
- Sync describes dialogue editing that rewrites spoken lines after filming and re-syncs the speaker without a reshoot.sync.so · read 21 Oct 2026
- Funding profile
- Dealroom reports a $24–36 million enterprise-value estimate and identifies the company as a Y Combinator Winter 2024 startup.app.dealroom.co · read 21 Oct 2026
- Hosted service
- The developer documentation directs users to Sync's hosted API and does not describe self-hosting or on-premises deployment.sync.so · read 21 Oct 2026
- Independent profile
- Dealroom describes Sync Labs as a real-time lip-sync API company launched in 2023 with a San Francisco headquarters and 11–50 employees.app.dealroom.co · read 21 Oct 2026
- Integrations
- Listed integrations include Adobe Premiere, DaVinci Resolve, ChatGPT, an MCP server, ComfyUI and ElevenLabs.sync.so · read 21 Oct 2026
- Languages
- The docs say the models operate on audio waveforms rather than text and support spoken languages including tonal languages such as Mandarin and Thai.sync.so · read 30 Sep 2026
- License
- Sync Labs is presented as a hosted commercial service; its product documentation does not identify an open-source license for the service.sync.so · read 21 Oct 2026
- Limit: Clutch reviewer criticism
- One Clutch review summary identifies speed of execution and turnaround time as an area for improvement.clutch.co · read 21 Oct 2026
