ComfyUI error: Visible seams around mask

Use an inpainting-specific checkpoint and grow the mask (grow_mask_by).

SD 1.5 inpainting

Classic inpainting with the SD 1.5 inpainting checkpoint.

Estimated VRAM

~4.26 GB — ⚠️ ESTIMATE (unverified real-world usage). Estimate, not a measured figure: weight-size floor = sd-v1-5-inpainting.ckpt (4.26 GB, sizes verified on Hugging Face/GitHub). Activations add more; ComfyUI offloading can reduce it. Source, checked 2026-10-13.

Models required

sd-v1-5-inpainting.ckpt — 4.265 GB ✅ verified 2026-10-13 (listing) · sha256 c6bbc15e3224e6973459ba78de4998b80b50112b0ae5b5c67113d56b4e366b19 → models/checkpoints

Tested GPUs

No verified test reports yet.

Nodes

CheckpointLoaderSimple LoadImage VAEEncodeForInpaint KSampler VAEDecode

Common errors & fixes

Visible seams around mask: Use an inpainting-specific checkpoint and grow the mask (grow_mask_by). ⚠️ unverified: Fix is general guidance; not confirmed against the cited source.

Low-VRAM tips

⚠️ General guidance, not individually verified.

Runs on most 4–6 GB cards with --lowvram

Source & credit

Workflow by comfyanonymous (ComfyUI_examples). Get it from the original: https://comfyanonymous.github.io/ComfyUI_examples/inpaint/. License: CreativeML Open RAIL-M.