Hedra vs sync.
A spec-by-spec comparison of Hedra and sync.: pricing, free tier, clip length, resolution, watermark, commercial use and API access.
| Hedra | sync. | |
|---|---|---|
| Pricing | from $20/mo | Free plan · from $5/mo |
| Free tier | Free trial: 3 generations/month, max 20s each | |
| Max clip length | 1 min (Hobbyist) to 30 min (Scale) | |
| Max resolution | 4K (sync-3) | |
| Watermark on free plan | ||
| Commercial use | Paid plans | |
| Developer API | Yes | Yes |
| Open source | No | No |
Hedra started as a tool for expressive talking-head and character videos driven by audio (its Character models) and now also runs a multimodal inference platform. Hedra Studio offers credit-based monthly plans for video, image and audio generation. The usage-based API covers video generation, avatars and lip-sync, upscaling, speech and LLMs. It suits creators making dialogue-driven character clips and developers who need avatar or lip-sync generation through an API.
- Every Studio plan from Basic ($20/mo, 2,000 credits) includes commercial use
- Video credits are charged by the actual generated length (e.g. 10 seconds, not a full minute)
- Prepaid API from about 2.5 cents per second for avatar/lip-sync, with no subscription or minimum
- No free Studio plan is listed; after cancelling, only limited watermarked generations remain
- Basic plan has slower generation speeds
- Monthly subscription credits do not roll over (credit-pack credits do)
sync. (Sync Labs) builds lip-sync models that re-time a speaker's mouth to new audio in existing footage, available through a web studio and a developer API with SDKs. Its sync-3 model outputs native 4K and handles obstructions and extreme angles. It suits dubbing studios, post-production teams and developers adding lip-sync to products.
- Native 4K output with the sync-3 model
- API and SDKs available from the $5 Hobbyist plan
- Pay-per-second usage with discounts up to 20% on higher tiers
- Subscriptions add per-second usage fees (about $0.04-0.133/sec)
- Watermark removal starts at the $19 Creator plan
- Hobbyist clips capped at 1 minute
Specs last verified 2026-10-23 (Hedra) and 2026-10-23 (sync.). See each tool page for sources.