Three repos, three roles
Which SeedVR2 GitHub repo do you actually need
Searches for SeedVR2 GitHub usually want the code or the weights, and the answer depends on which one. ByteDance-Seed/SeedVR holds the Apache-2.0 research code and official 3B/7B checkpoints. Comfy-Org/SeedVR2 repackages ComfyUI-formatted files on Hugging Face. The NumZ repository is a separate community custom node. This page maps all three so you download from the right place.
This is a SeedVR2.net source map. ByteDance-Seed/SeedVR is the upstream research repository; Comfy-Org/SeedVR2 is a repack, not the model publisher; the NumZ node is community software. The hosted SeedVR2.net tool is a separate service.
Skip the downloads with a hosted test
If you only need to know whether SeedVR2 helps one file, the browser path avoids checkpoint downloads, folder setup, and license verification entirely. Download weights later only if you need a repeatable local graph.
First eligible 5-second 720p Standard run: free
Verify your email to use your first video run without credits or a card. A failed run does not use the trial; longer clips and other settings show their exact credit cost before submission.
Browser upload limit: 500 MB. For larger files, paste a publicly accessible HTTPS URL. Each job supports videos up to 10 minutes.
Quick scene presets
Presets pick a model for a common scenario. You can still switch models manually below.
Upscaled preview
Compare the enhanced output before exporting the final file.
Upload a clip, paste a direct video URL, or load the sample. No example video is downloaded until you ask for it.
Tip: keep your original FPS and avoid pre-scaling. The upscaler handles cadence better than most NLE plugins.
Test before processing the full video
Upscaling cannot recreate detail removed by heavy messaging compression. Test the hardest 5–10-second segment first; a higher-priced model is not automatically a better fit.
The three repositories at a glance
Each repo answers a different question. Downloading the research code when you wanted ComfyUI weights is the most common mistake.
- ByteDance-Seed/SeedVR
- Research code
- Comfy-Org/SeedVR2
- ComfyUI weights
- numz node
- Custom node
- License
- Apache-2.0
Apache-2.0, official 3B/7B checkpoints, H100 reference commands, and limitations.
ComfyUI-formatted 3B INT8 diffusion model and shared EMA VAE.
ComfyUI-SeedVR2_VideoUpscaler with GGUF, BlockSwap, and batch controls.
The research release is Apache-2.0; verify repack and node terms separately.
ByteDance-Seed/SeedVR is the research source
The upstream repository holds the Apache-2.0 research code for SeedVR and SeedVR2, the official 3B and 7B checkpoints, snapshot_download examples, an H100 reference environment, and the documented model limitations. This is where you go to read the paper-level truth about what the model can and cannot do.
The research README is explicit about limits: heavily degraded inputs can fail, large motion can break restoration, and lightly degraded inputs can become over-sharpened. That framing matters more than any single benchmark number.
- Official checkpoints and license live here.
- Read the documented limitations before promising results.
- The H100 reference is not an 8GB claim.
Comfy-Org/SeedVR2 is the ComfyUI repack
Comfy-Org repackages compatible files for ComfyUI and documents the exact diffusion_models and VAE directories. The maintained template points to seedvr2_3b_int8_convrot.safetensors and seedvr2_ema_vae_fp16.safetensors. This repack is convenient, but it is a repack, not the ByteDance publisher.
When a tutorial says download from Hugging Face, it usually means this repack. Confirm the filename against the template rather than trusting a screenshot, because renames are the fastest path to a model-not-found error.
The NumZ node is community software
The numz/ComfyUI-SeedVR2_VideoUpscaler repository maintains a community custom node for the v2.5 layout with GGUF, tiling, BlockSwap, and batch behavior. It is not an official ByteDance release, and its version and dependency risks are separate from ComfyUI core.
Use it when a known workflow names its extra controls. Do not attribute FP8 or GGUF options to ByteDance, and do not turn them into an 8GB guarantee. Community software is a tool, not a promise.
License and redistribution
The SeedVR research release is Apache-2.0, which permits use and modification under its terms. Repacks and community nodes can carry their own terms, so check each repository before redistribution or commercial embedding.
The hosted SeedVR2.net product is a separate service with its own terms. Having the weights under an open license does not grant rights in the source files you upload.
Choose the repo by what you are building
Building a research comparison? Clone ByteDance-Seed/SeedVR and read the paper. Standing up ComfyUI? Use Comfy-Org/SeedVR2 weights with the native template. Need GGUF or BlockSwap in a v2.5 graph? That is the NumZ node. Mixing these is where most GitHub confusion starts.
If the real goal is one finished file, none of the three repos may be necessary. A hosted test answers the only question that matters for most buyers: does SeedVR2 improve my media?
Source map limits
Repositories move, licenses change, and community nodes get archived or renamed. This map reflects public repositories at review time; confirm each URL and license against the live repository before depending on it.
- Repository URLs and default branches change over time.
- License files in repacks and community nodes must be checked individually.
- Open weights do not change hardware requirements.
SeedVR2 GitHub questions
Where is the official SeedVR2 code?
The upstream research code lives in the ByteDance-Seed/SeedVR repository, published under Apache-2.0 with the official 3B and 7B checkpoints and a documented H100 reference environment.
Where do I get ComfyUI-compatible SeedVR2 weights?
Comfy-Org repackages ComfyUI-formatted files on Hugging Face under Comfy-Org/SeedVR2, including the 3B INT8 diffusion model and shared EMA VAE. It is a repack, not the ByteDance publisher.
Is the NumZ custom node the official SeedVR2 ComfyUI node?
No. The NumZ ComfyUI-SeedVR2_VideoUpscaler node is community software for the v2.5 layout. ComfyUI 0.28.0 or newer ships native SeedVR2 support through core template nodes, which is the shortest current path.
Can I use SeedVR2 commercially?
The research release is Apache-2.0, which permits use under its terms, but verify each repack and community node separately. The hosted SeedVR2.net product carries its own terms and does not grant rights in your uploaded sources.