Superside Seedream V5 Pro Edit

Some edit models treat "change the cup" as permission to quietly redo the whole table. Seedream V5 Pro is ByteDance's answer to that: grounded, region-precise editing where you ask for one element to change and the rest of the frame is supposed to stay put. This node wraps it (bytedance/seedream/v5/pro/edit on fal.ai) with up to ten reference images, so it's the pack's "surgical, edit-this-one-thing" node.

What it is and when to reach for it

If the job is a targeted swap - the red car becomes blue, the label changes, one product in a lineup gets a new finish - V5 Pro is the natural pick, and the README's framing ("changes one element while keeping the rest of the frame intact") is the pitch. Its sibling V4.5 is the broader multi-reference editor with a higher 4K ceiling; V5 Pro trades some of that headroom for precision and a couple of workflow niceties like an explicit output format. In a production pipeline, V5 Pro is the "final retouch" node you slot after a cheaper draft pass.

The inputs that matter

• prompt + image_1 + api_key - the required trio; image_2…image_10 for up to ten references.
• image_size - auto_1K / auto_2K (default) presets, plus square/portrait/landscape shapes. Note: no auto_4K here, unlike V4.5 - V5 Pro tops out around 2K.
• size_mode / width / height - custom mode is available, and the tooltip spells out the constraint: total pixels must stay between 1024×1024 and 2048×2048, aspect ratio between 1/16 and 16. Stay in preset mode unless you have a specific target.
• output_format - jpeg (default) or png. Choose png if downstream compositing needs lossless.
• num_images - 1–6, number of variations to request.
• enable_safety_checker - on by default.
• sync_mode - off by default. This node runs through fal's queued execution path (polling) because these multi-minute edits drop long connections; leave it as-is.

Outputs

• images (IMAGE) - results back in the graph as normal tensors.
• info (STRING) - the result URL.

Installing it

It's part of comfyui-superside-nodes - clone, install requirements, restart:

cd ComfyUI/custom_nodes
git clone https://github.com/Superside/comfyui-superside-nodes.git
cd comfyui-superside-nodes
pip install -r requirements.txt

Paste your fal api_key. No model files - Seedream runs on fal's servers, every call is metered, and your images + prompt leave your machine.

The honest take

"Grounded, region-precise" is a promise, not a guarantee - seedream-grade edits hold the frame much better than older models, but "change the cup" can still drift the tablecloth when the reference is low-res or the element blends into its surroundings. Feed it the highest-quality reference you have and keep the prompt to one clear change; that's where it shines. And if you find yourself re-rendering because a neighbor element shifted anyway, that's the point to reach for a masked local inpaint instead - the model you can run locally is the cheaper fix when the region is small and precise. V5 Pro earns its call when the whole frame has to survive.