Command Line Arguments and Settings

Environment variables

Name	Description
PYTHON	Sets a custom path for Python executable.
VENV_DIR	Specifies the path for the virtual environment. Default is venv. Special value - runs the script without creating virtual environment.
COMMANDLINE_ARGS	Additional commandline arguments for the main program.
IGNORE_CMD_ARGS_ERRORS	Set to anything to make the program not exit with an error if an unexpected commandline argument is encountered.
REQS_FILE	Name of requirements.txt file with dependencies that will be installed when launch.py is run. Defaults to requirements_versions.txt.
TORCH_COMMAND	Command for installing PyTorch.
INDEX_URL	--index-url parameter for pip.
TRANSFORMERS_CACHE	Path to where transformers library will download and keep its files related to the CLIP model.
CUDA_VISIBLE_DEVICES	Select GPU to use for your instance on a system with multiple GPUs. For example, if you want to use secondary GPU, put "1". (add a new line to webui-user.bat not in COMMANDLINE_ARGS): set CUDA_VISIBLE_DEVICES=0 Alternatively, just use --device-id flag in COMMANDLINE_ARGS.

webui-user

The recommended way to specify environment variables is by editing webui-user.bat (Windows) and webui-user.sh (Linux):

• set VARNAME=VALUE for Windows
• export VARNAME="VALUE" for Linux

For example, in Windows:

set COMMANDLINE_ARGS=--allow-code --xformers --skip-torch-cuda-test --no-half-vae --api --ckpt-dir A:\\stable-diffusion-checkpoints 

Running online

Use the --share option to run online. You will get a xxx.app.gradio link. This is the intended way to use the program in colabs. You may set up authentication for said gradio shared instance with the flag --gradio-auth username:password, optionally providing multiple sets of usernames and passwords separated by commas.

Running within Local Area Network

Use --listen to make the server listen to network connections. This will allow computers on the local network to access the UI, and if you configure port forwarding, also computers on the internet. Example address: http://192.168.1.3:7860 Where your "192.168.1.3" is the local IP address.

Use --port xxxx to make the server listen on a specific port, xxxx being the wanted port. Remember that all ports below 1024 need root/admin rights, for this reason it is advised to use a port above 1024. Defaults to port 7860 if available.

Running on CPU

Running with only your CPU is possible, but not recommended. It is very slow and there is no fp16 implementation.

To run, you must have all these flags enabled: --use-cpu all --precision full --no-half --skip-torch-cuda-test

Though this is a questionable way to run webui, due to the very slow generation speeds; using the various AI upscalers and captioning tools may be useful to some people.

Extras:

For the technically inclined, here are some steps a user provided to boost CPU performance:

https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/10514

https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/10516

All command line arguments

Argument Command	Value	Default	Description
CONFIGURATION
-h, --help	None	False	Show this help message and exit.
--exit			Terminate after installation
--data-dir	DATA_DIR	./	base path where all user data is stored
--config	CONFIG	configs/stable-diffusion/v1-inference.yaml	Path to config which constructs model.
--ckpt	CKPT	model.ckpt	Path to checkpoint of Stable Diffusion model; if specified, this checkpoint will be added to the list of checkpoints and loaded.
--ckpt-dir	CKPT_DIR	None	Path to directory with Stable Diffusion checkpoints.
--no-download-sd-model	None	False	Don't download SD1.5 model even if no model is found.
--vae-dir	VAE_PATH	None	Path to Variational Autoencoders model
--vae-path	VAE_PATH	None	Checkpoint to use as VAE; setting this argument
--gfpgan-dir	GFPGAN_DIR	GFPGAN/	GFPGAN directory.
--gfpgan-model	GFPGAN_MODEL	GFPGAN model file name.
--codeformer-models-path	CODEFORMER_MODELS_PATH	models/Codeformer/	Path to directory with codeformer model file(s).
--gfpgan-models-path	GFPGAN_MODELS_PATH	models/GFPGAN	Path to directory with GFPGAN model file(s).
--esrgan-models-path	ESRGAN_MODELS_PATH	models/ESRGAN	Path to directory with ESRGAN model file(s).
--bsrgan-models-path	BSRGAN_MODELS_PATH	models/BSRGAN	Path to directory with BSRGAN model file(s).
--realesrgan-models-path	REALESRGAN_MODELS_PATH	models/RealESRGAN	Path to directory with RealESRGAN model file(s).
--scunet-models-path	SCUNET_MODELS_PATH	models/ScuNET	Path to directory with ScuNET model file(s).
--swinir-models-path	SWINIR_MODELS_PATH	models/SwinIR	Path to directory with SwinIR and SwinIR v2 model file(s).
--ldsr-models-path	LDSR_MODELS_PATH	models/LDSR	Path to directory with LDSR model file(s).
--lora-dir	LORA_DIR	models/Lora	Path to directory with Lora networks.
--clip-models-path	CLIP_MODELS_PATH	None	Path to directory with CLIP model file(s).
--embeddings-dir	EMBEDDINGS_DIR	embeddings/	Embeddings directory for textual inversion (default: embeddings).
--textual-inversion-templates-dir	TEXTUAL_INVERSION_TEMPLATES_DIR	textual_inversion_templates	Directory with textual inversion templates.
--hypernetwork-dir	HYPERNETWORK_DIR	models/hypernetworks/	hypernetwork directory.
--localizations-dir	LOCALIZATIONS_DIR	localizations/	Localizations directory.
--styles-file	STYLES_FILE	styles.csv	Filename to use for styles.
--ui-config-file	UI_CONFIG_FILE	ui-config.json	Filename to use for UI configuration.
--no-progressbar-hiding	None	False	Do not hide progress bar in gradio UI (we hide it because it slows down ML if you have hardware acceleration in browser).
--max-batch-count	MAX_BATCH_COUNT	16	Maximum batch count value for the UI.
--ui-settings-file	UI_SETTINGS_FILE	config.json	Filename to use for UI settings.
--allow-code	None	False	Allow custom script execution from web UI.
--share	None	False	Use share=True for gradio and make the UI accessible through their site.
--listen	None	False	Launch gradio with 0.0.0.0 as server name, allowing to respond to network requests.
--port	PORT	7860	Launch gradio with given server port, you need root/admin rights for ports < 1024; defaults to 7860 if available.
--hide-ui-dir-config	None	False	Hide directory configuration from web UI.
--freeze-settings	None	False	disable editing settings
--enable-insecure-extension-access	None	False	Enable extensions tab regardless of other options.
--gradio-debug	None	False	Launch gradio with --debug option.
--gradio-auth	GRADIO_AUTH	None	Set gradio authentication like username:password; or comma-delimit multiple like u1:p1,u2:p2,u3:p3.
--gradio-auth-path	GRADIO_AUTH_PATH	None	Set gradio authentication file path ex. /path/to/auth/file same auth format as --gradio-auth.
--disable-console-progressbars	None	False	Do not output progress bars to console.
--enable-console-prompts	None	False	Print prompts to console when generating with txt2img and img2img.
--api	None	False	Launch web UI with API.
--api-auth	API_AUTH	None	Set authentication for API like username:password; or comma-delimit multiple like u1:p1,u2:p2,u3:p3.
--api-log	None	False	Enable logging of all API requests.
--nowebui	None	False	Only launch the API, without the UI.
--ui-debug-mode	None	False	Don't load model to quickly launch UI.
--device-id	DEVICE_ID	None	Select the default CUDA device to use (export CUDA_VISIBLE_DEVICES=0,1 etc might be needed before).
--administrator	None	False	Administrator privileges.
--cors-allow-origins	CORS_ALLOW_ORIGINS	None	Allowed CORS origin(s) in the form of a comma-separated list (no spaces).
--cors-allow-origins-regex	CORS_ALLOW_ORIGINS_REGEX	None	Allowed CORS origin(s) in the form of a single regular expression.
--tls-keyfile	TLS_KEYFILE	None	Partially enables TLS, requires --tls-certfile to fully function.
--tls-certfile	TLS_CERTFILE	None	Partially enables TLS, requires --tls-keyfile to fully function.
--disable-tls-verify	None	False	When passed, enables the use of self-signed certificates.
--server-name	SERVER_NAME	None	Sets hostname of server.
--no-gradio-queue	None	False	Disables gradio queue; causes the webpage to use http requests instead of websockets; was the default in earlier versions.
--no-hashing	None	False	Disable SHA-256 hashing of checkpoints to help loading performance.
--skip-version-check	None	False	Do not check versions of torch and xformers.
--skip-python-version-check	None	False	Do not check versions of Python.
--skip-torch-cuda-test	None	False	Do not check if CUDA is able to work properly.
--skip-install	None	False	Skip installation of packages.
PERFORMANCE
--xformers	None	False	Enable xformers for cross attention layers.
--force-enable-xformers	None	False	Enable xformers for cross attention layers regardless of whether the checking code thinks you can run it; do not make bug reports if this fails to work.
--xformers-flash-attention	None	False	Enable xformers with Flash Attention to improve reproducibility (supported for SD2.x or variant only).
--opt-sdp-attention	None	False	Enable scaled dot product cross-attention layer optimization; requires PyTorch 2.*
--opt-sdp-no-mem-attention	False	None	Enable scaled dot product cross-attention layer optimization without memory efficient attention, makes image generation deterministic; requires PyTorch 2.*
--opt-split-attention	None	False	Force-enables Doggettx's cross-attention layer optimization. By default, it's on for CUDA-enabled systems.
--opt-split-attention-invokeai	None	False	Force-enables InvokeAI's cross-attention layer optimization. By default, it's on when CUDA is unavailable.
--opt-split-attention-v1	None	False	Enable older version of split attention optimization that does not consume all VRAM available.
--opt-sub-quad-attention	None	False	Enable memory efficient sub-quadratic cross-attention layer optimization.
--sub-quad-q-chunk-size	SUB_QUAD_Q_CHUNK_SIZE	1024	Query chunk size for the sub-quadratic cross-attention layer optimization to use.
--sub-quad-kv-chunk-size	SUB_QUAD_KV_CHUNK_SIZE	None	KV chunk size for the sub-quadratic cross-attention layer optimization to use.
--sub-quad-chunk-threshold	SUB_QUAD_CHUNK_THRESHOLD	None	The percentage of VRAM threshold for the sub-quadratic cross-attention layer optimization to use chunking.
--opt-channelslast	None	False	Enable alternative layout for 4d tensors, may result in faster inference only on Nvidia cards with Tensor cores (16xx and higher).
--disable-opt-split-attention	None	False	Force-disables cross-attention layer optimization.
--disable-nan-check	None	False	Do not check if produced images/latent spaces have nans; useful for running without a checkpoint in CI.
--use-cpu	{all, sd, interrogate, gfpgan, bsrgan, esrgan, scunet, codeformer}	None	Use CPU as torch device for specified modules.
--no-half	None	False	Do not switch the model to 16-bit floats.
--precision	{full,autocast}	autocast	Evaluate at this precision.
--no-half-vae	None	False	Do not switch the VAE model to 16-bit floats.
--upcast-sampling	None	False	Upcast sampling. No effect with --no-half. Usually produces similar results to --no-half with better performance while using less memory.
--medvram	None	False	Enable Stable Diffusion model optimizations for sacrificing a some performance for low VRAM usage.
--lowvram	None	False	Enable Stable Diffusion model optimizations for sacrificing a lot of speed for very low VRAM usage.
--lowram	None	False	Load Stable Diffusion checkpoint weights to VRAM instead of RAM.
--always-batch-cond-uncond	None	False	Disables cond/uncond batching that is enabled to save memory with --medvram or --lowvram.
FEATURES
--autolaunch	None	False	Open the web UI URL in the system's default browser upon launch.
--theme	None	Unset	Open the web UI with the specified theme (light or dark). If not specified, uses the default browser theme.
--use-textbox-seed	None	False	Use textbox for seeds in UI (no up/down, but possible to input long seeds).
--disable-safe-unpickle	None	False	Disable checking PyTorch models for malicious code.
--ngrok	NGROK	None	ngrok authtoken, alternative to gradio --share.
--ngrok-region	NGROK_REGION	us	The region in which ngrok should start.
--update-check	None	None	On startup, notifies whether or not your web UI version (commit) is up-to-date with the current master branch.
--update-all-extensions	None	None	On startup, it pulls the latest updates for all extensions you have installed.
--reinstall-xformers	None	False	Force-reinstall xformers. Useful for upgrading - but remove it after upgrading or you'll reinstall xformers perpetually.
--reinstall-torch	None	False	Force-reinstall torch. Useful for upgrading - but remove it after upgrading or you'll reinstall torch perpetually.
--tests	TESTS	False	Run test to validate web UI functionality, see wiki topic for more details.
--no-tests	None	False	Do not run tests even if --tests option is specified.
DEFUNCT OPTIONS
--show-negative-prompt	None	False	No longer has an effect.
--deepdanbooru	None	False	No longer has an effect.
--unload-gfpgan	None	False	No longer has an effect.
--gradio-img2img-tool	GRADIO_IMG2IMG_TOOL	None	No longer has an effect.
--gradio-inpaint-tool	GRADIO_INPAINT_TOOL	None	No longer has an effect.
--gradio-queue	None	False	No longer has an effect.