Model · ByteDance · Image-Enhance
SeedVR2
ByteDance Seed's open restoration and upscaling model for video and still images. Restores and upscales in a single diffusion step, so it is far faster than multi-step diffusion upscalers while adding more real detail than older GAN upscalers.
- Modality
- Image-Enhance
- License
- Apache 2.0 (Open)
- Parameter size
- 3B and 7B
- Released
- June 5, 2025
- Last verified
- October 28, 2026
- Runs locally
- Yes
What you need to run it
- Mac
- Yes, but slow. Any Apple Silicon Mac (M1 or newer) with at least 16 GB (32 GB recommended) of memory. It runs, but much slower than on an NVIDIA card.
- Windows / Linux PC
- NVIDIA works best. A graphics card with at least 12 GB (24 GB recommended) of video memory.
- No graphics card
- Not practical. Too slow without a graphics card or Apple Silicon.
Works on Macs through the community ComfyUI node or an MLX port, but video upscaling is slow and the maker's own tests used an 80 GB H100.
Numbers are for: 3B model (compressed 8-bit is about 4 GB of weights); the 7B model is much heavier. Our estimate from the model’s size — the maker publishes no figure.
Strengths
- Apache 2.0 — free for commercial use
- One-step restore plus upscale for both video and images
- Community ComfyUI node makes it usable without code for image and video upscaling
- Peer-reviewed: accepted at ICLR 2026
Weaknesses
- Heavy for video: the lab's own script handles 100-frame 720p clips on one 80 GB H100, and needs four H100s for 1080p or 2K
- Official repo has seen little activity since January 2026; most usability work happens in the community ComfyUI node
Try it
| Where | Type | Notes |
|---|---|---|
| Hugging Face (3B) | weights | Apache 2.0 |
| Hugging Face (7B) | weights | Apache 2.0 |
| ComfyUI-SeedVR2_VideoUpscaler | local | Community ComfyUI node for images and video |
| Hugging Face Spaces | hosted | Free demo |
Official sources
- GitHub github
- Paper paper
- Model card (7B) model
Change log
- — Added hardware requirements (Mac support, memory, NVIDIA). Source: an estimate from the 3B/7B model sizes and the community Mac builds; the lab's own video test used one 80 GB H100.
- — Initial entry. Release date is the arXiv paper date (2025-06-05); weights and code followed on 2025-06-10/11. Apache 2.0. Added 2026-10-28 from the popularity sweep: the two main ComfyUI repacks (numz and Comfy-Org) had about 1.4M Hugging Face downloads combined in the last month; official repo 1.4k GitHub stars.
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