Zhenzhen_Mjv

The name is short for Midjourney Variation, and that's exactly the job: you hand it a Midjourney task id and it makes variations of that result - plus the post-generation tricks like upscaling, zoom-out, and panning. If you've used the Comfly pack's Comfly_Mj node to generate a grid, this is the node that turns one of those four images into a family of near-cousins, all inside ComfyUI instead of on Discord.

The flow is: Comfly_Mj returns a taskId → feed it into Comfly_Mjv → pick what you want done → out pops an image. It's a paid call each time, so each variation is a transaction, but that's the same deal you get running MJ through any API wrapper.

The input that matters

• taskId - required, and it's forceInput, so it wants to be wired from the generating node's output rather than typed. Copy-pasting a raw id from the MJ website can work, but the intended path is node-to-node.
• upsample_v6_2x_subtle / upsample_v6_2x_creative - two flavors of the 2x upscale: subtle keeps the image honest, creative lets MJ reimagine while enlarging.
• costume_zoom - the zoom-out-outwards variation (yes, the author's field name is "costume" - it's zoom regardless of the spelling).
• zoom - 1.0 to 2.0, how far the zoom goes.
• pan_left / pan_right / pan_up / pan_down - the "keep the subject, shift the frame" moves. Pick one direction per run; they're booleans, so it's one flag at a time.

The api_key input is the standard Comfly override; otherwise it reads the global key from Comflyapi.json.

Output is a single image (IMAGE) - wire it into a Save Image node and you're done.

Install

Same story as every Comfly node:

cd ComfyUI/custom_nodes
git clone https://github.com/ainewsto/Comfyui_Comfly

Or ComfyUI Manager → "Comfyui_Comfly" → restart. No models, no GPU usage - it's an API client for the Midjourney relay at ai.comfly.chat. You'll want credits on that account.

Gotchas

The README's update log is worth a skim if MJ is your main use case - the pack's MJ node group got reorganized more than once ("deleted some nodes, simplified the mj group"), and there's a dedicated Comfly_Mj_swap_face for face-swap jobs and Comfly_mj_video/Comfly_mj_video_extend for MJ's video mode, so don't go hunting for features that live in a sibling node. One honest quirk: if the call fails and returns nothing usable, the source falls back to a blank white 512x512 image instead of erroring loudly - so a "successful" run that gives you a white square means check the relay's task log, not your wiring.