We are pleased to announce a bugfix update to InvokeAI with the release of version 2.3.2.

• What's New
• Installation and Upgrading
• Getting Help
• Known Bugs
• Detailed Change Log
• Acknowledgements

What's New in 2.3.2

This is a bugfix and minor feature release.

Bugfixes

Since version 2.3.1 the following bugs have been fixed:

1. Black images appearing for potential NSFW images when generating with legacy checkpoint models and both --no-nsfw_checker and --ckpt_convert turned on.
2. Black images appearing when generating from models fine-tuned on Stable-Diffusion-2-1-base. When importing V2-derived models, you may be asked to select whether the model was derived from a "base" model (512 pixels) or the 768-pixel SD-2.1 model.
3. The "Use All" button was not restoring the Hi-Res Fix setting on the WebUI
4. When using the model installer console app, models failed to import correctly when importing from directories with spaces in their names. A similar issue with the output directory was also fixed.
5. Crashes that occurred during model merging.
6. Restore previous naming of Stable Diffusion base and 768 models.
7. Upgraded to latest versions of diffusers, transformers, safetensors and accelerate libraries upstream. We hope that this will fix the assertion NDArray > 2**32 issue that MacOS users have had when generating images larger than 768x768 pixels. Please report back.

As part of the upgrade to diffusers, the location of the diffusers-based models has changed from models/diffusers to models/hub. When you launch InvokeAI for the first time, it will prompt you to OK a one-time move. This should be quick and harmless, but if you have modified your models/diffusers directory in some way, for example using symlinks, you may wish to cancel the migration and make appropriate adjustments.

New "Invokeai-batch" script

2.3.2 introduces a new command-line only script called invokeai-batch that can be used to generate hundreds of images from prompts and settings that vary systematically. This can be used to try the same prompt across multiple combinations of models, steps, CFG settings and so forth. It also allows you to template prompts and generate a combinatorial list like:

a shack in the mountains, photograph
a shack in the mountains, watercolor
a shack in the mountains, oil painting
a chalet in the mountains, photograph
a chalet in the mountains, watercolor
a chalet in the mountains, oil painting
a shack in the desert, photograph
...

If you have a system with multiple GPUs, or a single GPU with lots of VRAM, you can parallelize generation across the combinatorial set, reducing wait times and using your system's resources efficiently (make sure you have good GPU cooling).

To try invokeai-batch out. Launch the "developer's console" using the invoke launcher script, or activate the invokeai virtual environment manually. From the console, give the command invokeai-batch --help in order to learn how the script works and create your first template file for dynamic prompt generation.

Installation / Upgrading

To install or upgrade to InvokeAI 2.3.2 please download the zip file below, unpack it, and then double-click to launch the script install.sh (Macintosh, Linux) or install.bat (Windows). Alternatively, you can open a command-line window and execute the installation script directly.

InvokeAI-installer-v2.3.2.zip

Upgrading using the invoke.sh / invoke.bat launcher is temporarily broken. To upgrade from previous versions run the installer and when it asks you to confirm the location of the invokeai directory, type in the path to the directory you are already using, if not the same as the one selected automatically by the installer. When the installer asks you to confirm that you want to install into an existing directory, simply indicate "yes".

Developers and power users can upgrade to the current version by activating the InvokeAI environment and then using pip install --use-pep517 --upgrade InvokeAI . You may specify a particular version by adding the version number to the command, as in InvokeAI==2.3.2. To upgrade to an xformers version if you are not currently using xformers, use pip install --use-pep517 --upgrade InvokeAI[xformers]. You can see which versions are available by going to The PyPI InvokeAI Project Page

Known Bugs in 2.3.2

These are known bugs in the release.

1. The Ancestral DPMSolverMultistepScheduler (k_dpmpp_2a) sampler is not yet implemented for diffusers models and will disappear from the WebUI Sampler menu when a diffusers model is selected.
2. Windows Defender will sometimes raise a Trojan alert for the codeformer.pth face restoration model. As far as we have been able to determine, this is a false positive and can be safely whitelisted.

What's Changed

• fix python 3.9 compatibility by @mauwii in #2780
• fixes crashes on merge in both WebUI and console by @lstein in #2800
• hotfix for broken merge function by @lstein in #2801
• [ui]: 2.3 hotfixes by @psychedelicious in #2806
• restore previous naming scheme for sd-2.x models: by @lstein in #2820
• quote output, embedding and autoscan directores in invokeai.init by @lstein in #2827
• Introduce pre-commit, black, isort, ... by @mauwii in #2822
• propose more restrictive codeowners by @lstein in #2781
• fix newlines causing negative prompt to be parsed incorrectly by @lstein in #2838
• Prevent crash when converting models from within CLI using legacy model URL by @lstein in #2846
• [WebUI] Fix 'Use All' Params not Respecting Hi-Res Fix by @blhook in #2840
• Disable built-in NSFW checker on models converted with --ckpt_convert by @lstein in #2908
• Dynamic prompt generation script for parameter scans by @lstein in #2831

Full Changelog: v2.3.1...v2.3.2

Acknowledgements

Many thanks to @mauwii (Matthias Wilde), @psychedelicious, @blessedcoolant (Vic), @blhook (Pull Shark), and our crack team of Discord moderators, @gogurtenjoyer and @whosawhatsis, for all their contributions to this release.