Heads up: statuses are automated heuristics from commit dates, registry metadata and issue titles. "Stale" can mean "finished and stable"; "Error spike" means error-titled issues are unusually high for that pack lately — worth checking recent issues, not a verdict that it is broken. Always check the repo.

ComfyUI-SeedVR2_VideoUpscaler Active

SeedVR2 official ComfyUI integration: ByteDance-Seed's one-step diffusion-based video/image upscaling with memory-efficient inference

Why: last commit 299 days ago; Quiet: no commits in 6+ months

Repo	numz/ComfyUI-SeedVR2_VideoUpscaler (default branch main)
Registry	seedvr2_videoupscaler · publisher ainvfx · latest 2.5.24 (2025-12-24) · in Manager list: yes
Popularity	rank #23 · 1,104,201 downloads · 2929 stars
Tags	Upscaling Video Loaders, quantization & speed Generic / any
Star velocity	collecting (nightly snapshots started 2026-10-19)
Error issues	1 error-titled issues opened in last 30 days (open+closed) · 0.09 per 100K downloads · baseline 1.33/month over prior 6 months (8 total) · 0.75× baseline (Error spike needs ≥3, ≥2× baseline, ≥0.5 per 100K)
Last commit	2025-12-24 (299 days ago)
Open issues	76+ issues, 24 PRs (fetched 2026-10-19)
pyproject.toml	present · version 2.5.24 · requires-comfyui — · frontend — · requires-python — · 14 deps
Registry ComfyUI req.

Active forks

Automatic suggestions, not endorsements: forks with commits newer than upstream, ranked by commits ahead, recency and stars. Read the fork's README and diff before switching. Scanned 2026-10-19: 124 forks checked.

Fork	Commits	Last commit	Stars
ussoewwin/ComfyUI-SeedVR2-VideoUpscaler-with-TensorRT docs(zh): add SeedVR2 Video Upscaler node documentation and noise.png to zhmd/README.md	418 ahead / 0 behind	2026-10-12	20 ★
xmarre/ComfyUI-SeedVR2_VideoUpscaler Merge pull request #10 from xmarre/codex/apply-patch-for-bf16-support-improvements	39 ahead / 0 behind	2026-06-21	5 ★
naxci1/ComfyUI-SeedVR2.5 Merge pull request #27 from naxci1/copilot/add-blackwell-tuning-dropdown	36 ahead / 0 behind	2026-01-14	6 ★

Error-titled issues, last 30 days

torch.compile + GGUF + BlockSwap still fails with quantized_weight guard error in v2.5.24 2026-10-01 · open

Open issues mentioning errors / breakage

#649 torch.compile + GGUF + BlockSwap still fails with quantized_weight guard error in v2.5.24 2026-10-01
#640 Compatibility shims register phantom `flash_attn` / `bitsandbytes` modules, breaking `find_spec`-based capability checks 2026-09-18
#621 [Windows] bitsandbytes safety stub causes custom-node import failure after UnicodeDecodeError 2026-08-18
#599 Suggested fix for Upsample3D.upscale_conv crashes on MPS with convolution_overrideable not implemented 2026-06-27
#594 import failed comfyUI 2026-06-17
#576 ERROR] Error in Phase 1 (Encoding): Tensor type unknown to einops <class 'tuple'> 2026-04-24
#566 Doesn't work on the new version of ComfyUI 2026-04-05
#555 SeedVR2 crashes ComfyUI on startup when ComfyUI-MultiGPU is installed Environment 2026-03-19
#552 [BUG] Fatal access violation crash on startup with recent NVIDIA drivers (bfloat16 probe) 2026-03-16
#547 Seevr2 crashes con laptop with rtx 5070 2026-03-12
#544 Import failed 2026-03-07
#543 Error during DIT upscale on GTX Titon X. 2026-03-06
#541 import failed - ComfyUI-SeedVR2_VideoUpscaler 2026-03-02
#538 CLI crash after completing first chunk 2026-02-26
#532 Error during phase 2: PassManager::run failed 2026-02-20

Recent commits

2025-12-24 [main] Merge pull request #441 from AInVFX/main
2025-12-24 [main] fix(vae): restore MPS memory leak workaround removed in v2.5.23 cleanup
2025-12-24 [main] Merge pull request #438 from AInVFX/main
2025-12-24 [main] Release v2.5.23: Security & stability improvements
2025-12-24 [main] Add sponsor call-to-action to footer