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Integrate Bria 3.1/3.2 Models and ControlNet Pipelines into InvokeAI #8248

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Integrate Bria 3.1/3.2 Models and ControlNet Pipelines into InvokeAI #8248

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@ilanbria ilanbria commented Jul 10, 2025 •
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Summary

This feature PR integrates Bria 3.1/3.2 text-to-image models and their ControlNet pipelines into InvokeAI.

image

How

Area Key Changes
Backend Added invokeai/backend/bria/** including:- pipeline_bria.py, pipeline_bria_controlnet.py (diffusers workflows)- transformer_bria.py, controlnet_bria.py, helper & utility scripts- controlnet_aux detectors (Canny/OpenPose)
Model Manager Added model_loaders/bria.py and updated probe/taxonomy for auto-discovery of Bria Main & ControlNet models.
Invocations / Nodes New nodes under invokeai/nodes/bria_nodes/* including model loader, encoder, decoder, denoiser, latent sampler, and ControlNet handlers.
UI / API - New field components (BriaMainModelFieldInputComponent.tsx, BriaControlNetModelFieldInputComponent.tsx)- Extended UIType enum for Node Editor integration- Updated Model Manager badges and schemas
Dependencies Added scikit-image (required for OpenPose detector), updated uv.lock.
Scope 46 files changed, ~5,500 new LOC, 3 LOC removed

Representative commits:

  • Add Bria text to image model and controlnet support

  • Setup Probe and UI to accept bria main/controlnet models

  • Added scikit-image required for Bria's OpenposeDetector model

Related Issues / Discussions

QA Instructions

Requires Bria model weights and a CUDA-11+ GPU (CPU supported, slower).

Steps:

  1. Install Models

    • Set HF token with access to Bria's models.

    • Install briaai/BRIA-3.2.

    • Install briaai/BRIA-3.2-ControlNet-Union.

  2. Load Workflow

    • Load the workflow from the attached file:

      [Bria text-to-image workflow.json](https://github.com/user-attachments/files/21217591/Bria.text-to-image.workflow.1.json)

  3. Run Workflow

    • Run workflow without controlnet.

    • Run workflow with controlnet.

Merge Plan

  • Rebase onto main after current release.

  • Docker/GHA runners require additional pip install scikit-image?

Checklist

  • The PR has a short but descriptive title, suitable for a changelog
  • Tests added / updated (if applicable)
  • Documentation added / updated (if applicable)
  • Updated What's New copy (if doing a release after this PR)

@github-actions github-actions bot added python PRs that change python files invocations PRs that change invocations backend PRs that change backend files frontend PRs that change frontend files labels Jul 10, 2025
@ilanbria ilanbria force-pushed the ilan/support_bria_3.2_pipeline branch from 7d2a666 to 1076d8e Compare July 10, 2025 20:15
@ilanbria ilanbria force-pushed the ilan/support_bria_3.2_pipeline branch from 1076d8e to 2d55dbe Compare July 14, 2025 13:32
@github-actions github-actions bot added Root python-deps PRs that change python dependencies labels Jul 14, 2025
@ilanbria ilanbria changed the title Add Bria text to image model and controlnet support Integrate Bria 3.1/3.2 Models and ControlNet Pipelines into InvokeAI Jul 14, 2025
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Hey! Confirming, have you tested that this works with the new location? I ran into some issues and may need to poke around in my local install to see what's going on if you were able to run these without issue

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@ilanbria @hipsterusername @brandonrising