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Stability Matrix vs SwarmUI

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Stability MatrixSwarmUI
LanguageC#C#
LicenceAGPL-3.0MIT
Stars8.9k4.6k
Latestv2.16.40.9.8-Beta
Last push2026-10-042026-10-01
Release cadenceabout 22 days between releasesabout 103 days between releases
Active contributors8 commit authors on the default branch in the last 90 days6 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Midjourney. Alternatives to Midjourney →

    PartialStability MatrixInstalls and manages local image generation UIs with a shared model library.

    PartialSwarmUIA web UI for local diffusion models, with ComfyUI as its backend; Midjourney models are not available.