Editing
Repair one thing without losing the rest.
This is the same playbook the agent skill carries. Names like fast and default are aliases; see Models for what they run on the hosted service; model names in the research notes below may include ones only the local tool offers. Prices are in credits.
- Lead with the operation in the imperative: change, replace, remove,
add, recolour, convert, place, extend
[vendor: Qwen edit rewriter]. - One attribute, pushed clearly. Under-editing and leakage are the two
failure modes
[vendor: Qwen]. Budget two edit passes: the vendor's own blog example needed a second, more explicit pass[vendor: Qwen]. - One blanket preservation clause, and do not re-describe what stays:
"a preservation description reads to the model as a generation
instruction: the more concretely you describe something you meant to keep,
the more likely it drifts"
[vendor: Qwen]. Google's template: "Using the provided image, change only the [element] to [new]. Keep everything else in the image exactly the same, preserving the original style, lighting, and composition."[vendor] - Name subjects specifically, never pronouns: "the woman with short
black hair", plus "preserve her facial features"
[vendor: BFL Kontext]. - Identity from a reference image: point at the image by role rather than
describing features
[vendor: Qwen]. Multi-image: give each a role and say what is taken from where: "The person from image 1 is sitting in the cafe from image 2, wearing the outfit from image 3"[vendor: BFL]. - Text edits:
Replace "OLD" with "NEW", matching the original font, colour and placement[vendor: BFL]. - Style conversions: "Convert to [style] while maintaining [what to
preserve]"
[vendor: BFL]. - Sequential single edits for big transformations; do not bundle
[vendor: BFL, Qwen]. Do not fix what was not asked[vendor: Qwen]. - Ratio: output follows the input's ratio unless you ask to extend the
canvas; say "outpaint/extend" explicitly
[vendor: Qwen]. With several Gemini inputs the last image sets the ratio[vendor: Google]. - Local repair vs regenerate: repair when composition is right and the
defect is local; regenerate when count, pose or blocking is wrong. Edits
cannot restructure a scene
[community: T2I-Copilot, HandRefiner]. - Bright coloured annotation boxes drawn on the input can target a local
edit on Kontext
[vendor: BFL].
Which model
| Need | Alias / model |
|---|---|
| Fast single-image edit | edit:fast → FLUX.1-Kontext-dev (1 ref) |
| Default edit | edit:default → Qwen-Image-Edit (1 ref, has negative_prompt) |
| Multi-reference composite | edit:best → FLUX-2-dev (4 refs) or FLUX-2-pro |
| Remove background | Bria/remove_background |
| Extend canvas | Bria/expand (aspect_ratio + prompt) |
| Erase object | Bria/erase |