
Image Outpainting
Extends images beyond their original canvas using RunComfy's edit endpoints. Routes across Nano Banana 2 Edit for spatial language ("add 30% to the left"), GPT Image 2 Edit when you need reference matching, or FLUX Kontext Pro for maximum preservation. The most common use is aspect ratio swaps: square to 16:9 for banners, portrait to 9:16 for social, uncropping product shots or historical photos. Nano Banana 2 works well if you prompt the canvas change first, describe what extends, then explicitly preserve the original content. If you hit visible seams or lighting mismatches at the boundary, you'll need to step up to a ComfyUI workflow with proper seam handling. Not for filling holes inside the frame, that's inpainting.
- skills.sh installs
- 273.8K
- GitHub stars
- 16
- last updated
- Aug 21, 2026
Install
$ npx -y skills add runcomfy-com/skills --skill image-outpainting --agent claude-codeInstalls into .claude/skills of the current project.
Files
Image Outpainting
Extend a still beyond its original canvas — uncrop, change aspect ratio, fill in what the camera didn't capture. This skill routes across the identity-preserving edit endpoints in the RunComfy catalog, picking the right one for prose-driven extension, reference-style matching, or brand-locked continuation.
runcomfy.com · best-image-editing-models · CLI docs
Powered by the RunComfy CLI
# 1. Install (see runcomfy-cli skill for details)
npm i -g @runcomfy/cli # or: npx -y @runcomfy/cli --version
# 2. Sign in
runcomfy login # or in CI: export RUNCOMFY_TOKEN=<token>
# 3. Outpaint
runcomfy run google/nano-banana-2/edit \
--input '{"prompt": "...extend canvas...", "image_urls": ["..."]}' \
--output-dir ./out
Sponsors
Details
- Repository
- github.com/runcomfy-com/skills
- Categories
- Code Review & Quality, Marketing & SEO, CLI & Terminal, Generative Media
- First seen
- Jun 3, 2026
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