Pull Request Checklist

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Before submitting, make sure you've checked the following:

• Target branch: Please verify that the pull request targets the dev branch.
• Description: Provide a concise description of the changes made in this pull request.
• Changelog: Ensure a changelog entry following the format of Keep a Changelog is added at the bottom of the PR description.
• Documentation: Have you updated relevant documentation Open WebUI Docs, or other documentation sources?
• Dependencies: Are there any new dependencies? Have you updated the dependency versions in the documentation?
• Testing: Have you written and run sufficient tests for validating the changes?
• Code review: Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards?
• Prefix: To cleary categorize this pull request, prefix the pull request title, using one of the following:
  • BREAKING CHANGE: Significant changes that may affect compatibility
  • build: Changes that affect the build system or external dependencies
  • ci: Changes to our continuous integration processes or workflows
  • chore: Refactor, cleanup, or other non-functional code changes
  • docs: Documentation update or addition
  • feat: Introduces a new feature or enhancement to the codebase
  • fix: Bug fix or error correction
  • i18n: Internationalization or localization changes
  • perf: Performance improvement
  • refactor: Code restructuring for better maintainability, readability, or scalability
  • style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc.)
  • test: Adding missing tests or correcting existing tests
  • WIP: Work in progress, a temporary label for incomplete or ongoing work

Changelog Entry

Description

added Stable Diffusion 3 support alongside ComfyUI configuration.

this commit adds four environment variables:

• COMFYUI_CFG_SCALE
• COMFYUI_SAMPLER
• COMFYUI_SCHEDULER
• COMFYUI_SD3

Added

The above mentioned environment variables, alongside Stable Diffusion 3 support.

Changed

N/A

Deprecated

N/A

Removed

N/A

Fixed

closes #1459 alongside addressing the top comment (for ComfyUI only, as I do not have an AUTOMATIC1111 setup to test with). also closes #1958 (again, for ComfyUI only, since afaik AUTOMATIC1111 doesn't even support SD3).

Security

N/A

Breaking Changes

No breaking changes, because if the environment variable does not exist, we fall back to the original behavior.

Additional Information

All three of the changes I wrote in the past few hours are built together in the Docker image ghcr.io/johnthenerd/open-webui:comfyui-test3 and I am currently running them in my homelab without any issues. Tested with and without the new environment variables.

Docs at open-webui/docs#119

Screenshots or Videos

SD3 with everything set to what is recommended in the documentation (updated the example screenshot since the last PR, because this is so much nicer):