Rembg vs Stable Diffusion web UI (AUTOMATIC1111)

Short answer

Rembg: Background-removal tool you run as a CLI, Python library, HTTP server or Docker container. Stable Diffusion web UI (AUTOMATIC1111): Classic Gradio web interface for Stable Diffusion with txt2img, img2img, inpainting, upscaling and a large extension ecosystem. Both are in our Image & media generation category.

Choose Rembg if you want: no GPU server needed, fewer license conditions (Permissive vs Network copyleft (AGPL)) and an actively maintained project (Stable Diffusion web UI (AUTOMATIC1111) is stale).

Choose Stable Diffusion web UI (AUTOMATIC1111) if you want: larger community (165k vs 25.3k GitHub stars).

Rembg publishes no official RAM figure, so we cannot compare hosting cost directly.

Last updated · computed from each project's official docs and live GitHub data · sources

Rembg vs Stable Diffusion web UI (AUTOMATIC1111) side by side

RembgStable Diffusion web UI (AUTOMATIC1111)
CategoryImage & media generationImage & media generation
What it isBackground-removal tool you run as a CLI, Python library, HTTP server or Docker container.Classic Gradio web interface for Stable Diffusion with txt2img, img2img, inpainting, upscaling and a large extension ecosystem.
LicenseMIT (model weights under their own licenses)AGPL-3.0
License typePermissiveNetwork copyleft (AGPL)
License conditionsThe rembg code is MIT: free for internal and commercial use. Each model has its own license; the default BRIA RMBG-2.0 model requires a paid agreement for commercial use, so pick a different model for business work or license it.Free for internal and commercial use. If you modify it and let users interact with it over a network, you must offer them the modified source under AGPL-3.0. Each model checkpoint has its own license; check it before commercial use.
StatusActiveStale (no commit in 180+ days)
GitHub stars25.3k165k
Last commitNov 2, 2026Jul 27, 2024
Latest releasev2.0.86v1.10.1
Minimum hardwareNot publishedNot published
Recommended hardwareNot publishedNot published
RAM measured by usNot tested yetNot tested yet
GPUOptional. CPU is the default backend; NVIDIA (onnxruntime-gpu with CUDA and cuDNN) and AMD (onnxruntime-rocm) are supported.NVIDIA GPUs are the recommended path; AMD GPUs, Intel CPUs/GPUs, Apple Silicon and Ascend NPUs have separate install guides. With little VRAM use --medvram or --lowvram; without enough VRAM it may refuse to launch or run out of memory.
Est. server costNot estimatedGPU server (not estimated)
Deploy methodpip (HTTP server); Docker image for the CLILaunch script (Linux)
Known gotchas4 listed4 listed
TelemetryNot documentedNot documented
Calls home by defaultYes, by defaultNot documented
SSO (OIDC / SAML / LDAP)Not documentedNot documented
Audit logNot documentedNot documented
RBACNot documentedNot documented
DetailsFull Rembg guide →Full Stable Diffusion web UI (AUTOMATIC1111) guide →

Key differences

  • License: Rembg: MIT (model weights under their own licenses) (Permissive). Stable Diffusion web UI (AUTOMATIC1111): AGPL-3.0 (Network copyleft (AGPL)).
  • GPU: Rembg: optional / see notes. Stable Diffusion web UI (AUTOMATIC1111): needed for practical use.
  • Est. server cost: Rembg: not estimated (no official RAM figure). Stable Diffusion web UI (AUTOMATIC1111): GPU server (not estimated).
  • Deploy: Rembg: pip (HTTP server); Docker image for the CLI · single container. Stable Diffusion web UI (AUTOMATIC1111): Launch script (Linux) · Launch script (Linux).
  • Status: Rembg: Active. Stable Diffusion web UI (AUTOMATIC1111): Stale (no commit in 180+ days).
  • GitHub stars: Rembg: 25.3k. Stable Diffusion web UI (AUTOMATIC1111): 165k.
  • Last commit: Rembg: Nov 2, 2026. Stable Diffusion web UI (AUTOMATIC1111): Jul 27, 2024.
  • Latest release: Rembg: v2.0.86 (Oct 21, 2026). Stable Diffusion web UI (AUTOMATIC1111): v1.10.1 (Feb 9, 2025).

Same for both: Category: Image & media generation; Official hardware: not published.

Rembg vs Stable Diffusion web UI (AUTOMATIC1111): FAQ

Rembg or Stable Diffusion web UI (AUTOMATIC1111): which should a small business choose?

Choose Rembg if you want: no GPU server needed, fewer license conditions (Permissive vs Network copyleft (AGPL)) and an actively maintained project (Stable Diffusion web UI (AUTOMATIC1111) is stale). Choose Stable Diffusion web UI (AUTOMATIC1111) if you want: larger community (165k vs 25.3k GitHub stars). Rembg publishes no official RAM figure, so we cannot compare hosting cost directly.

Which is cheaper to self-host, Rembg or Stable Diffusion web UI (AUTOMATIC1111)?

Rembg: not estimated (no official RAM figure). Stable Diffusion web UI (AUTOMATIC1111): GPU server (not estimated). Our estimate is the cheapest Hetzner Cloud plan that meets each project's official RAM and vCPU figure; it covers the server only.

How much hardware do Rembg and Stable Diffusion web UI (AUTOMATIC1111) need?

Rembg: not published. Stable Diffusion web UI (AUTOMATIC1111): not published. Stable Diffusion web UI (AUTOMATIC1111) needs a GPU for practical use.

What is the license difference between Rembg and Stable Diffusion web UI (AUTOMATIC1111)?

Rembg: MIT (model weights under their own licenses) (Permissive). The rembg code is MIT: free for internal and commercial use. Each model has its own license; the default BRIA RMBG-2.0 model requires a paid agreement for commercial use, so pick a different model for business work or license it. Stable Diffusion web UI (AUTOMATIC1111): AGPL-3.0 (Network copyleft (AGPL)). Free for internal and commercial use. If you modify it and let users interact with it over a network, you must offer them the modified source under AGPL-3.0. Each model checkpoint has its own license; check it before commercial use. This is a summary, not legal advice.

Is Rembg or Stable Diffusion web UI (AUTOMATIC1111) more actively maintained?

Rembg: Active, last commit Nov 2, 2026. Stable Diffusion web UI (AUTOMATIC1111): Stale (no commit in 180+ days), last commit Jul 27, 2024. GitHub data refreshed Nov 2, 2026.

Which is easier to deploy, Rembg or Stable Diffusion web UI (AUTOMATIC1111)?

Rembg installs via pip (HTTP server); Docker image for the CLI (single container); Stable Diffusion web UI (AUTOMATIC1111) via Launch script (Linux) (Launch script (Linux)). Rembg lists 4 known gotchas and Stable Diffusion web UI (AUTOMATIC1111) lists 4; see each app page.

Related

Sources

Every value is generated from the same verified data as the app pages. Spotted something wrong? Tell us.