Kling Lip Sync vs Runway Act-Two
7 facts side by side from each company’s published specs and prices, plus our same-brief bench where both have run it. By GoCrazyAI Lab, method here.
Kling Lip Sync
by Kuaishou · Kling Lip Sync, Kling AI Avatar
Runway Act-Two
by Runway · Act-Two
The short answer
Kling Lip Sync wins 4 of the 4 rounds a number or a yes/no can decide, Runway Act-Two takes 0. In the Best lip-sync AI tools guide Kling Lip Sync is #6 (Best on a budget) and Runway Act-Two is #5 (Best for acting out a character).
Kling Lip Sync wins
4 / 4
Kling syncs clips of up to a minute to your audio or a built-in voice from $10 a month, with daily credits to try. Handy if you already make your videos in Kling.
Runway Act-Two wins
0 / 4
Act-Two maps your own filmed performance onto a character, lips, face and body, so the delivery is exactly yours. Clips are short, capped at 30 seconds.
Round by round
Bold marks the winner of a row; rows without a number or yes/no have no winner. As published, checked September 25, 2026.
| Spec | Kling Lip Sync | Runway Act-Two |
|---|---|---|
| Cheapest paid plan | $10/mo (Standard) | $15/mo (Standard, 625 credits) |
| Works from | Video + audio or text (images via Kling AI Avatar) | Your performance video + a character image or video |
| Longest job | 60 min | 30 min |
| Languages | Not published | Any: follows your performance |
| Top resolution | 1080p | 720p |
| API | Yes | Not published |
| No-cost plan | Yes: daily credits, watermarked | Trial credits, but Act-Two needs Standard or higher |
By the numbers
- Kling Lip Sync1 min
- Runway Act-Two30 sec
- Kling Lip Sync$10
- Runway Act-Two$15
See them work
Kling Lip Sync: what we like
- The lowest entry price for syncing short clips.
- Upload your own audio or type text for a built-in voice.
Watch out for
- Video and audio are each capped at 60 seconds.
- The first-month price is an offer; renewal is higher.
Runway Act-Two: what we like
- Transfers your whole facial performance, not only the lips.
- Works on stylised, animated and non-human characters.
Watch out for
- Clips are capped at 30 seconds at 720p.
- Not available on the no-cost plan.
Make it on GoCrazyAI
Make the whole thing on GoCrazyAI
Make the photo talk or sing in the Lip Sync Studio, and prepare the voice, song and footage around it, all on the same credits from $9.99 a week.
Frequently asked questions
Which is cheaper to start, Kling Lip Sync or Runway Act-Two?
Kling Lip Sync starts at $10/mo (Standard); Runway Act-Two at $15/mo (Standard, 625 credits). No-cost tier: Kling Lip Sync yes: daily credits, watermarked, Runway Act-Two trial credits, but act-two needs standard or higher. Prices as published on each company's pricing page, checked September 25, 2026.
Longest single job on the cheapest paid plan: Kling Lip Sync or Runway Act-Two?
Kling Lip Sync: 1 min. Runway Act-Two: 30 sec.
Can I use either on GoCrazyAI?
Kling Lip Sync is a separate product; the GoCrazyAI tools below do the same job on one subscription. Runway Act-Two is a separate product; the GoCrazyAI tools below do the same job on one subscription.
Sources
- Kling Lip Sync: Kling lip-sync API
- Kling Lip Sync: Kling membership plans
- Runway Act-Two: Runway Act-Two help
- Runway Act-Two: Runway pricing
- Runway Act-Two: Runway on lip sync and consent
GoCrazyAI publishes this comparison. Product names are trademarks of their owners; neither company sponsored, reviewed or endorsed this page. Facts are summarised from the sources above and may have changed since the dates shown.
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