Skywork AI Skyreels V3 Extend Video Cutshot (Official Edition)

This node takes a video you already have and extends it - generating a follow-on cut (a "cutshot") with Skywork AI's SkyReels V3, run in the cloud through BizyAirPlus's official route. It's the pack's answer to the oldest problem in AI video: you've got a clip you like, and you want more of it.

SkyReels is Skywork AI's video model family - the same lineage as the open SkyReels V1 Hunyuan fine-tunes the community ran locally back in 2025, several generations on. The V3 Extend Cutshot node is built for continuation, not cold-start generation: you feed it the video, describe the extension, and the model produces the next shot that follows from what's there. For turning a single good clip into a sequence, this is the tool - and it costs you nothing locally, because it runs on their servers.

How it works

Output node in the BizyAirPlus cloud layer. With BizyAirPlus ON in the action bar, the node uploads your input video and forwards the prompt, duration and cut type to SkyReels V3's extend endpoint. The extended result returns as a new video in your workflow. The key design point is the video input - this node starts from motion, not from nothing, which is what makes the continuation coherent with the source footage.

The inputs that matter

• video - the source clip to extend. Required; this is what the new cut continues from.
• prompt - what the follow-on shot should be. Describe the next moment, not the whole project.
• duration - 2 to 5 seconds (default 5). Extensions are short by design; SkyReels builds on what you give it rather than writing a long new scene.
• cut_type - defaults to Auto, letting the model pick how the cut lands. Leave it there until you have a reason to force a specific cut style.

Then the standard pair: api_config (per-request base URL/API key override) and skip_error (placeholder output on failure instead of aborting the workflow).

The outputs

video - the extended clip; wire it to a preview or save node. urls - the direct result link. request_id - the trace ID for support.

Installing it

Ships in BizyAirPlus. ComfyUI Manager → search "BizyAirPlus", or:

cd ComfyUI/custom_nodes
git clone https://github.com/siliconflow/BizyAirPlus.git
cd BizyAirPlus
python -m pip install -r requirements.txt

Restart, turn BizyAirPlus ON, key from bizyair.ai (stored at ~/.BizyAirPlus/apikey.ini, or set BIZYAIR_API_KEY). The node code is in the bizytrd / bizyair-cloudberry pip packages - light install, no model downloads, no VRAM requirements.

Gotchas

The usual cloud-node failure list - button OFF, missing key, network - and the ComfyUI console always shows the real error. The BizyAir malware talk you may have seen? That was an old Manager auto-install mixup, fixed; SiliconFlow is legit. For the node itself, the practical rule is that the source video quality caps everything: a muddy input gives a muddy extension, so feed it your best clip. And remember the 2–5 second duration window is a feature - chain a couple of extend passes if you want a longer sequence rather than expecting one node call to write a feature.