Get Last Output Video Path

Get Last Output Video Path scans your ComfyUI output folder and returns the full path to the most recent video file (.webp or .mp4) in it. One string comes out: the absolute on-disk path of your newest render.

The "why" is automation. ComfyUI saves videos to disk, but the graph itself often doesn't know where the file landed - a video saver node reports a filename back to the UI, not necessarily to the rest of the graph. If you want to then do something with that file - feed it to a second workflow, send it somewhere, chain it into a post-processing node that wants a path string, or have workflow A hand its output off to workflow B - you need the path as data. This node reaches out and grabs it by looking at what's actually on disk.

It's the classic glue-node move: the pack is full of small nodes that connect things ComfyUI doesn't connect natively, and this one connects "video just rendered" to "everything else that wants a file path."

How it works

It looks in ComfyUI/output/ - specifically output/<subfolder> if you give it one - finds every .webp and .mp4 file, and picks one based on sort_by:

• Date (default) - the most recently modified file wins.
• Name - the alphabetically-last filename wins, which is usually (but not guaranteed) a proxy for "latest" when your filenames carry timestamps or counters.

If the folder doesn't exist or contains no matching files, it returns an empty string rather than erroring - a graceful "nothing there" that downstream nodes have to be ready to handle.

One important implementation detail: the node reports itself as always changed (it returns NaN from its change check), which means ComfyUI never caches its output. Every queue run re-scans the folder. That's intentional - the whole point is "what's the newest file right now" - but it means the node will always execute even if nothing upstream changed. Fine for its job, mildly surprising if you were hoping for graph-level deduplication.

Inputs and outputs

• subfolder (STRING) - a subfolder under output to search. Leave empty to search the top level. Useful if your video saver writes to output/videos/.
• sort_by - Date or Name.

Output:

• video_path (STRING) - absolute path to the chosen file, or empty.

Installing it

Ships in ComfyUI Fictiverse Nodes. ComfyUI Manager → search "ComfyUI Fictiverse Nodes" → install → restart, or:

cd ComfyUI/custom_nodes
git clone https://github.com/Fictiverse/ComfyUI_Fictiverse

No dependencies, no models. Apache 2.0.

Common issues

Pack gotcha: ModuleNotFoundError: No module named 'custom_nodes.ComfyUI_Fictiverse' means the folder isn't named exactly ComfyUI_Fictiverse; rename and restart.

Node-specific gotchas: it only looks in output - if your workflow saves elsewhere (a custom output directory, or a temp folder), the path won't be found and you'll get an empty string. It also only recognizes .webp and .mp4; other video containers are invisible to it. And "last modified" is a filesystem timestamp, so if you generate two videos in quick succession, the newest may not be the one you think it is - the modified time is set when the file was written, and a fast re-render can produce timestamps that look identical to the second. When in doubt, check the actual files in the folder.