No. 25of 27 ·AI Video Lip Sync Tools

X-Dub

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Freedom report

One barScore 5.2

Runs widely0 of 6 device platforms
DocumentedPlans, terms and facts published

X-Dub is ranked #25 of 27 in AI video lip sync tools on Freedom251. It runs on Self-hosted.

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The record

Purpose: X-Dub is a PyTorch implementation for syncing a character in a video to an audio track through visual dubbing.
Public release: The public X-Dub (Wan-5B) release is based on Wan2.2-TI2V-5B; the repository says the internal model used in the paper is not open sourced.
Input handling: The inference pipeline accepts arbitrary-size input videos and automatically crops and resizes the face region to 512×512 before mapping the generated result back to the full video.
Single-person limit: The current release supports single-person videos and does not support target tracking in multi-person scenes.
Hardware requirement: Inference typically requires about 21 GB of VRAM.
Cropping caveat: The online DWPose-based cropping strategy may cause visible jitter or fail to follow faces during rapid head movement.
Community integration: The repository links to community-maintained ComfyUI custom nodes with native video and audio inputs, standard VAE integration, and an isolated runtime.
Weights: Pretrained weights are downloadable from the KlingTeam/X-Dub Hugging Face model repository.
License: The GitHub repository identifies its license as Apache-2.0.
Responsible use: The project notes potential misuse for identity impersonation or deceptive synthetic media and encourages labeling AI-generated content.
Support: The repository invites users to open an issue for discussion and lists [email protected] for questions.
Intended users: The project provides code, model weights, and command-line inference instructions for users setting up a local Python environment.
Project affiliation: The repository lists contributors affiliated with Tsinghua University, Kling Team at Kuaishou Technology, Beihang University, HKUST, and CUHK.

Where it ranks on Freedom251

Best AI Video Lip Sync Tools in 2026#25 of 27

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Sources

github.com/KlingAIResearch/X-Dub· checked 4 Oct 2026