FlashVSR

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Freedom report

Two barsScore 6.2

Free tierA free tier is on its own pricing page
Runs widely0 of 6 device platforms
DocumentedPlans, terms and facts published

FlashVSR is ranked #15 of 33 in AI video upscalers on Freedom251. It runs on Self-hosted. There is a free plan.

FlashVSR plans and pricing

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FlashVSR Free Open-source code and model weights · Requires a local Python environment and Block-Sparse Attention backend · GPU compatibility varies github.com · 9 Oct 2026

Compared on AI video upscalers

Free plan: Yes
Enhancement modes: v1; v1.1; full; tiny; tiny long video
Batch processing: Yes
Supported video formats: MP4; MOV; AVI; MKV

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The record

Purpose: FlashVSR is a one-step diffusion framework for streaming video super-resolution.
Performance: The project reports about 17 FPS for 768 × 1408 video on a single A100 GPU.
Core methods: Its framework combines a three-stage distillation pipeline, locality-constrained sparse attention, and a tiny conditional decoder.
Training dataset: VSR-120K is described as containing 120,000 videos and 180,000 images for joint image and video training.
Recommended setting: The project is primarily designed and optimized for 4× video super-resolution, which it recommends for better results and stability.
Model versions: The repository provides v1 and v1.1 model weights through Hugging Face, and recommends v1.1.
Hardware requirements: The required Block-Sparse Attention backend is reported to work correctly on NVIDIA A100 and A800, while H200 runs with limited acceleration and compatibility on other listed GPUs is unknown.
Install requirements: The setup instructions use Python 3.11.13 and require installing the Block-Sparse Attention backend.
Community integrations: The README lists community ComfyUI implementations and WanVideoWrapper integration, and says WanVideoWrapper has known issues.
Third-party inference: The README lists third-party cloud and API deployments and cautions that their model versions or pipeline completeness may differ from the official implementation.
Quality limitation: The project says implementations without its sparse attention module may have noticeable quality degradation, especially at higher resolutions.
License: The GitHub repository identifies its license as Apache-2.0.
Support: The maintainers welcome feedback and issues, and list Junhao Zhuang as a contact.
Price from: Free

Where it ranks on Freedom251

Best AI Video Upscalers in 2026#15 of 33

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Sources

github.com/OpenImagingLab/FlashVSR· checked 9 Oct 2026