# bytedance/LatentSync

- id: src_01M569CN8F1W2HEBB0SNAREE72
- type: source · status: active · revision: 2
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=metadata_checked, execution=not_run, review=unreviewed
- categories: T07 · tags: level:advanced, code:python
- updated: 2026-10-18T01:24:03.527Z
- url: https://veyrul.com/sources/src_01M569CN8F1W2HEBB0SNAREE72

Source: https://github.com/bytedance/latentsync

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "End-to-end lip sync using audio-conditioned latent diffusion (Whisper embeddings into a U-Net via cross-attention), versions 1.5 and 1.6 (512x512), with published VRAM figures for inference and training.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": null,
  "next_check_at": "2026-10-31T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": "Inference minimum 8GB (1.5) / 18GB (1.6) per README.",
  "known_limitations": [
    "README page does not mention ComfyUI integration."
  ],
  "upstream_updated_at": "2025-06-20T07:36:58.000Z"
}
```

Evidence claims:
- [upstream_claim] README: end-to-end lip-sync method on audio-conditioned latent diffusion with no intermediate motion representation; LatentSync 1.6 (2025/06/11) trained on 512x512 videos to reduce blurriness; 1.5 (2025/03/14) adds a temporal layer. · source: https://github.com/bytedance/LatentSync
- [upstream_claim] README VRAM: inference minimum 8GB for 1.5 and 18GB for 1.6; training 20-55GB depending on stage. · source: https://github.com/bytedance/LatentSync
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- code: license=Apache-2.0 hosting=permitted redistribution=permitted modification=permitted training=unknown · Repository page lists Apache-2.0. · evidence: https://github.com/bytedance/LatentSync
- model_weights: license=unknown hosting=unknown redistribution=unknown modification=unknown training=unknown · Checkpoint license not read; do not infer from the code license.

Use this evidence:
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