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Video Upscaling - SeedVR2 7B

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AI-Powered Video Upscaling & Quality Restoration (High-Quality Variant)

Restore, sharpen, and enhance degraded or low-quality videos to high resolution. SeedVR2-7B is ByteDance's larger, higher-quality variant of their one-step video restoration model, delivering superior output for demanding production use cases.

What it does

SeedVR2-7B is the premium variant of ByteDance Seed's SeedVR2 video restoration and enhancement model. It takes damaged, blurry, compressed, or low-resolution video footage and restores it to sharp, high-quality output in a single processing pass. The 7B variant offers higher output quality compared to the lighter SeedVR2-3B, making it the better choice for production scenarios where visual fidelity is the top priority. Like its smaller counterpart, it is significantly faster than most competing restoration tools, which require many repeated processing passes to achieve similar results.

Problem it solves

  • Old or degraded footage – Restores heavily compressed, blurry, noisy, or low-resolution videos to sharp, high-quality output
  • Slow restoration pipelines – Most AI video restoration tools are slow and computationally expensive. SeedVR2-7B completes restoration in a single pass, dramatically cutting processing time and cost
  • High-resolution output – Handles high-resolution video restoration with adaptive quality control, avoiding the visual inconsistencies that commonly appear in other tools when scaling up
  • Real-world content – Built to handle real-world footage with its varied and unpredictable degradation, not just controlled lab test videos
  • Premium output quality – When output fidelity is critical, the 7B variant delivers a meaningful step up in visual quality over the 3B version

Input/Output

  • Input:
    • A degraded, low-quality, blurry, compressed, or low-resolution video
  • Output: A restored, high-resolution MP4 video file
    • Visually sharp with reconstructed details and textures where they were lost
    • Smooth, coherent motion throughout the full length of the video

Accuracy & Speed

  • Speed & Scale
Processing speed
Single-pass restoration (significantly faster than multi-step alternatives)
Infrastructure needed
Standard single GPU setup
Output quality
Higher fidelity than SeedVR2-3B; comparable to or better than existing multi-step restoration tools

Technical Details

Architecture
7B diffusion-based video restoration model
Approach
One-step adversarial post-training (single inference pass)
Resolution handling
Adaptive window attention — dynamically adjusts to output resolution for consistent quality
Supported Frameworks
Hugging Face Diffusers
Developer
ByteDance Seed

Model Variants

SeedVR2 is available in two sizes to suit different needs:

Version
Best For
SeedVR2-3B
Faster processing, lower resource requirements
SeedVR2-7B
Higher quality output for more demanding use cases

Known Limitations

  • May struggle with very heavily degraded footage or scenes with very fast, large movements
  • On video that is already high quality (e.g., lightly compressed AI-generated content), it can occasionally over-sharpen, adding unnecessary detail
  • These are described by the team as prototype models, and real-world performance may vary

Compliance & Provenance

Provider
Open-source (ByteDance)
Provider type
Specialized
License
Apache 2.0 (ByteDance)
EU AI Act risk class
Minimal Risk
Art. 50 transparency
Not applicable
Region availability
Available globally
Training data summary
Pending — provider has not yet published per Art. 53(d)

For more on how we classify models and mark outputs, see our AI Policy.

Model Source