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ComfyUI

Open source

Node graph for local image (and now video) generation. The serious alternative to clicking Leonardo every day.

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Official siteGitHub

Free tier

GPL-3 graph UI for diffusion. Unlimited on your GPU. Models extra.

Limits

VRAM hungry. Workflows break across versions. First setup is a weekend.

Best for

  • Repeatable image pipelines
  • Flux/SD locally
  • Batch stills

How to use it well

  1. Install the desktop or git build. Load a starter workflow JSON — do not start from a blank graph.
  2. Download one checkpoint (Flux schnell or SDXL). Keep custom nodes to a minimum.
  3. Save the workflow next to the project. The graph is the recipe.

Myanmar notes

Only if you have a discrete GPU. Otherwise stay on Gemini Images / Leonardo. Download checkpoints on Wi-Fi overnight.