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SPECIFICTION
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X-Dub

github.com

Self-hosted
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Spec score 6.6 #27 of 28 in AI Video Lip Sync Tools

Spec sheet

Purpose
X-Dub synchronizes a character’s lip movements in a video to match input audio.Read 11 Oct 2026 · huggingface.co
Intended users
The project provides code, model weights, and command-line inference instructions for users setting up a local Python environment.Read 4 Oct 2026 · github.com
Support
The repository invites users to open an issue for suggestions and provides a contact email for questions.Read 11 Oct 2026 · github.com
License
The repository lists the Apache-2.0 license, which grants no-charge, royalty-free copyright permissions subject to its terms.Read 11 Oct 2026 · github.com
Character support
The project says it generalizes to stylized, non-human, and AI-generated characters.Read 11 Oct 2026 · hjrphoebus.github.io
Community integration
The repository links to community-maintained ComfyUI custom nodes with native video and audio inputs, standard VAE integration, and an isolated runtime.Read 4 Oct 2026 · github.com
Cropping caveat
The online DWPose-based cropping strategy may cause visible jitter or fail to follow faces during rapid head movement.Read 4 Oct 2026 · github.com
Editing approach
The project describes mask-free dubbing that uses full-frame temporal context without explicit masks or reference frames.Read 11 Oct 2026 · hjrphoebus.github.io
Ethical use
The repository warns of possible identity impersonation or deceptive synthetic media misuse and supports clear labeling of AI-generated content.Read 11 Oct 2026 · github.com
Hardware requirement
The repository says inference typically requires about 21 GB of VRAM.Read 11 Oct 2026 · github.com
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.Read 4 Oct 2026 · github.com
Integration
The repository links a community-maintained ComfyUI project with custom nodes for X-Dub.Read 11 Oct 2026 · github.com
Known limitations
The public Wan-5B release may show flickering, identity or color drift, occasional noisy frames, and roughly twice the inference time of the internal version without acceleration.Read 11 Oct 2026 · github.com
Lip-sync
The project says it produces speech-aligned lip movements while avoiding leakage and off-target edits.Read 11 Oct 2026 · hjrphoebus.github.io
Output caveats
The public release may show occasional flickering, identity or color drift, and severe noisy frames in roughly 2% of cases; the repository also reports roughly 2× slower inference than the internal version without acceleration strategies.Read 4 Oct 2026 · github.com
Project affiliation
The repository lists contributors affiliated with Tsinghua University, Kling Team at Kuaishou Technology, Beihang University, HKUST, and CUHK.Read 4 Oct 2026 · github.com
Public release
The repository provides a public X-Dub release based on Wan2.2-TI2V-5B and pretrained weights.Read 11 Oct 2026 · github.com
Responsible use
The project notes potential misuse for identity impersonation or deceptive synthetic media and encourages labeling AI-generated content.Read 4 Oct 2026 · github.com
Single-person limit
The current release supports single-person videos and does not support target tracking in multi-person scenes.Read 4 Oct 2026 · github.com
Video input limit
The current auto-cropping pipeline supports single-person videos and does not support target tracking in multi-person scenes.Read 11 Oct 2026 · github.com
Weights
Pretrained weights are downloadable from the KlingTeam/X-Dub Hugging Face model repository.Read 4 Oct 2026 · github.com

Where Specifiction places it

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