SeedVR2 - AI Video Upscaler

SeedVR2 is an online AI video and image upscaling workspace that restores low-resolution media to stunning 4K quality using ByteDance's one-step diffusion transformer, available at seedvr2.net.

What is SeedVR2?

SeedVR2 is a browser-based AI upscaling platform developed by ByteDance that uses a one-step diffusion transformer model to restore and enhance both images and videos. It accepts JPEG, PNG, WebP images and MP4, WebM videos via drag-and-drop or URL upload, and outputs upscaled, high-quality versions—up to 4K for video and 8K for images. The service is hosted at seedvr2.net, with open-source model weights available under Apache 2.0 on Hugging Face.

Key Features

• One-Step Restoration — Complete image and video restoration in a single forward pass, 10x faster than traditional multi-step diffusion methods while maintaining state-of-the-art quality.
• AI Upscaling — Upscale images to 2K, 4K, or 8K resolution and videos to 4K with sharp detail and clean textures.
• Arbitrary Resolution — No patching or resolution constraints; the model works natively with any input size.
• Multi-Format Support — Drag and drop JPEG, PNG, WebP, MP4, WebM files; auto-classifies into image or video queues and resumes large uploads.
• Generous Limits — Upload up to 1000 images or 100 videos per batch, with a total size cap of 2 GB.
• Freemium Pricing — New accounts receive 5 free credits; image upscaling costs 10 credits per job, video upscaling starts at 165+ credits. Review pricing on the pricing page.
• Open-Source Model — The underlying SeedVR2 model is released under Apache 2.0, with code and weights on GitHub and Hugging Face. The research paper is available at arXiv:2506.05301, detailing adaptive window attention and causal video DiT architecture.

Who is it for?

• Content creators and video editors — Enhance low-res footage, AI-generated videos, or archive material to 4K for professional distribution.
• AI image generators — Upscale AI-generated images (e.g., from Stable Diffusion) to remove artifacts and add realistic texture.
• Media archivists — Restore old or low-quality videos and images with a single-step process.
• ComfyUI users — Integrate SeedVR2 into local workflows using community nodes for video and image upscaling (see Tom Dörr's multi-GPU ComfyUI node).

What can you do with SeedVR2?

• Indie filmmakers: Upscale a short film rendered at 1080p to crisp 4K for festival submission using the web-based workspace.
• AI artists: Run AI-generated images through SeedVR2's image upscaler to achieve sharper details and more natural textures before sharing.
• Social media content creators: Batch upscale multiple images or short video clips to improve quality before posting, with simple drag-and-drop and queue management.
• Researchers and developers: Download the open-source model and integrate it into custom pipelines or experiment with the one-step diffusion architecture.

How does SeedVR2 work?

The service operates through a web interface: sign in, drag and drop files (or paste a URL), and the platform automatically classifies them into image or video queues. Jobs are processed on ByteDance's servers using the one-step diffusion transformer, producing upscaled outputs that can be downloaded directly. The entire process requires no local GPU or software installation.

Pricing

SeedVR2 operates on a freemium credit model. New accounts start with 5 credits. Image upscaling costs 10 credits per job, while video upscaling typically requires 165+ credits depending on length and resolution. Additional credits can be purchased via the pricing page.

FAQ

Is SeedVR2 free?

New accounts receive 5 free credits to try the service. Image upscaling costs 10 credits, video upscaling starts at 165+ credits. There is no free daily credit refresh mentioned on the site; credits are purchased.

What file formats does SeedVR2 support?

It supports JPEG, PNG, and WebP for images, and MP4 and WebM for videos.

What are the upload limits?

You can upload up to 1000 images or 100 videos per batch, with a total file size limit of 2 GB.

Can I use SeedVR2 on my own computer?

The model is open-source under Apache 2.0 and available on GitHub and Hugging Face. You can run it locally with sufficient GPU resources, or use the web service for convenience.

How fast is SeedVR2 compared to other upscalers?

It performs restoration in a single forward pass, making it approximately 10x faster than multi-step diffusion methods while maintaining comparable or better quality.