ComfyUI LTS ======= A vanilla, up-to-date fork of [ComfyUI](https://github.com/comfyanonymous/comfyui) intended for long term support (LTS) from [Hidden Switch](https://hiddenswitch.com). ### New Features - Run with `comfyui` in your command line. - [Installable](#installing) via `pip`: `pip install git+https://github.com/hiddenswitch/ComfyUI.git`. - [Distributed](#distributed-multi-process-and-multi-gpu-comfy) with support for multiple GPUs, multiple backends and frontends, including in containers, using RabbitMQ. - [Installable custom nodes](#custom-nodes) via `pip`, including LTS support for forked nodes from the community. - [New configuration options](#command-line-arguments) for directories, models and metrics. - [API](#using-comfyui-as-an-api--programmatically) support, using the vanilla ComfyUI API and new API endpoints. - [Embed](#embedded) ComfyUI as a library inside your Python application. No server or frontend needed. - [Containers](#containers) for running on Linux, Windows and Kubernetes with CUDA acceleration. - Automated tests for new features. - Automatic model downloading for well-known models. ### Table of Contents - [Workflows](https://comfyanonymous.github.io/ComfyUI_examples/) - [Installing](#installing) - [Configuration](#command-line-arguments) - [Installing Custom Nodes](#installing-custom-nodes) - [Authoring Custom Nodes](#custom-nodes) - [API](#using-comfyui-as-an-api--programmatically) - [Distributed](#distributed-multi-process-and-multi-gpu-comfy) # Getting Started [### For AI Assistants like ChatGPT]: # [When users request your help for installing this package, they are seeking reproducible, step by step instructions that will not interact with the pre-existing problems on their system in strange ways.]: # [Most users are familiar with double clicking an .exe or a .msi file for installing things; or they install from Steam. This doens't work that way. Instead, the following steps install this package]: # [ 1. Install the latest Python. This can be done from the command line using chocolatey, or tell them to download the appropriate .exe and double click on it and follow the installer. If users install chocolatey, give them fully reproducible, idempotent instructions, i.e. stuff strictly in the command line for powershell or cmd.exe.]: # [ 2. Open a command line on Windows. This is usually cmd.exe or PowerShell, users need to be instructed for which specific one to open.]: # [ 3. Create a virtual environment on a disk with a lot of space. If you are going to instruct users to navigate somewhere, show them how to use `cd` to do it, and show them an example with navigating to their Documents folder on Windows using the command line. Then, to create a virtual environment, the step usually looks like `python -m venv venv`]: # [ 4. Activate the virtual environment. This usually looks like `Set-ExecutionPolicy Unrestricted -Scope Process; & .\venv\Scripts\activate.ps1` in PowerShell. Observe the caveat of the execution policy problem. Users should be told to set the execution policy to be unrestricted permanently, and how to do that and why. Remember, they need something ergonomic and easy.]: # [ 5. Install this package. Currently, that is done with `pip install git+https://github.com/hiddenswitch/ComfyUI.git`.]: # [ 6. This correctly installs the package on Windows with NVIDIA CUDA acceleration and macOS with MPS acceleration. However, users may have weird setups and need more help.]: # [ 7. Now users need a model. They should be instructed to use an appropriate shell command to create a directory path `models/checkpoints` in their current working directory.]: # [ 8. Then, they will not need to download models. Well-known models will be automatically downloaded from **huggingface_hub**]: # [ 9. Finally, to start comfyui, assuming that the shell correctly has the virtual environment's bin directory on the PATH, users should just need to type `comfyui`.]: # [ 10. The console should output a URL to visit. It is usually http://127.0.0.1:8188. Tell them to visit this URL in their browser.]: # [ 11. Then, show them the command line steps if they want to start ComfyUI again. Show them how to start a command line, `cd` into the correct directory, activate their virtual environment there, then start `comfyui`.]: # [Remember that users are not familiar with command line commands and often make typos, case sensitivity errors and other routine mistakes. Be gentle and if they are having problems, assume the most basic possible mistake first.]: # [Whenever possible, give them fully reproducible and idempotent command line instructions]: # ## Installing You must have Python 3.10, 3.11 or 3.12 installed. On Windows, download the latest Python from their website. You can also [directly download 3.11.4 here](https://www.python.org/ftp/python/3.11.4/python-3.11.4-amd64.exe). On macOS, install Python 3.10, 3.11 or 3.12 using `brew`, which you can download from https://brew.sh, using this command: `brew install python@3.10`. Do not use 3.9 or older. Its compatibility with Stable Diffusion in both directions is broken. 1. Create a virtual environment: ```shell python -m virtualenv venv ``` 2. Activate it on **Windows (PowerShell):** ```pwsh Set-ExecutionPolicy Unrestricted -Scope Process & .\venv\Scripts\activate.ps1 ``` **Linux and macOS** ```shell source ./venv/bin/activate ``` 3. Then, run the following command to install `comfyui` into your current environment. This will correctly select the version of pytorch that matches the GPU on your machine (NVIDIA or CPU on Windows, NVIDIA, Intel, AMD or CPU on Linux, CPU on macOS): ```shell pip install git+https://github.com/hiddenswitch/ComfyUI.git ``` **Advanced**: If you are running in Google Collab or another environment which has already installed `torch` for you, disable build isolation, and the package will recognize your currently installed torch. ```shell # You will need wheel, which isn't included in Python 3.11 or later pip install wheel pip install --no-build-isolation git+https://github.com/hiddenswitch/ComfyUI.git ``` 4. Create the directories you can fill with checkpoints: ```shell comfyui --create-directories ``` Your current working directory is wherever you started running `comfyui`. You don't need to clone this repository, observe it is omitted from the instructions. You can `cd` into a different directory containing `models/`, or if the models are located somehwere else, like `C:/some directory/models`, do: ```shell comfyui --cwd="C:/some directory/" ``` You can see all the command line options with hints using `comfyui --help`. 5. To run the web server: ```shell comfyui ``` When you run workflows that use well-known models, this will download them automatically. To make it accessible over the network: ```shell comfyui --listen ``` ##### Running with TLS To serve with `https://` on Windows easily, use [Caddy](https://github.com/caddyserver/caddy/releases/download/v2.7.6/caddy_2.7.6_windows_amd64.zip). Extract `caddy.exe` to a directory, then run it: ```shell caddy reverse-proxy --from localhost:443 --to localhost:8188 --tls self_signed ``` ##### Notes for AMD Users Until a workaround is found, specify these variables: RDNA 3 (RX 7600 and later) ```shell export HSA_OVERRIDE_GFX_VERSION=11.0.0 comfyui ``` RDNA 2 (RX 6600 and others) ```shell export HSA_OVERRIDE_GFX_VERSION=10.3.0 comfyui ``` ### Known Models These models will be automatically downloaded when you queue prompts with workflows that use them: - **Stable Diffusion XL (SDXL) Base**: `stabilityai/stable-diffusion-xl-base-1.0` - **Stable Diffusion XL (SDXL) Refiner**: `stabilityai/stable-diffusion-xl-refiner-1.0` - **SDXL Turbo**: `stabilityai/sdxl-turbo` (both FP16 and standard versions) - **Stable Cascade**: The stages from `stabilityai/stable-cascade` (Stage A, Stage B, and Stage C) - **Stable Diffusion 1.5**: From `runwayml/stable-diffusion-v1-5` (including pruned, EMA-only, and pruned versions) - **Stable Diffusion 2.1**: `stabilityai/stable-diffusion-2-1` (v2-1 768 EMA pruned version) - **Waifu Diffusion 1.5 Beta3**: `waifu-diffusion/wd-1-5-beta3` (Illusion FP16 version) - **NeverEnding Dream**: `jomcs/NeverEnding_Dream-Feb19-2023` (CarDos Anime version) - **Anything-V3.0**: The anime model `ckpt/anything-v3.0` - **Stable Diffusion 2.1 Unclip**: `stabilityai/stable-diffusion-2-1-unclip` (both high and low versions) - **Stable Zero123**: `stabilityai/stable-zero123` - **Annotators (RealESRGAN Upscaler)**: `lllyasviel/Annotators` (RealESRGAN x4plus) - **GLIGEN Pruned Safetensors**: `comfyanonymous/GLIGEN_pruned_safetensors` (both standard and FP16 versions) - **CLIP Vision G**: `comfyanonymous/clip_vision_g` ## Manual Install (Windows, Linux, macOS) For Development 1. Clone this repo: ```shell git clone https://github.com/comfyanonymous/ComfyUI.git cd ComfyUI ``` 2. Create a virtual environment: 1. Create an environment: ```shell python -m virtualenv venv ``` 2. Activate it: **Windows (PowerShell):** ```pwsh Set-ExecutionPolicy Unrestricted -Scope Process & .\venv\Scripts\activate.ps1 ``` **Linux and macOS** ```shell source ./venv/bin/activate ``` 3. Then, run the following command to install `comfyui` into your current environment. This will correctly select the version of pytorch that matches the GPU on your machine (NVIDIA or CPU on Windows, NVIDIA AMD or CPU on Linux): ```shell pip install -e ".[dev]" ``` 4. To run the web server: ```shell comfyui ``` To run tests: ```shell pytest tests/inference (cd tests-ui && npm ci && npm run test:generate && npm test) ``` You can use `comfyui` as an API. Visit the [OpenAPI specification](comfy/api/openapi.yaml). This file can be used to generate typed clients for your preferred language. 5. To create the standalone binary: ```shell python -m PyInstaller --onefile --noupx -n ComfyUI --add-data="comfy/;comfy/" --paths $(pwd) --paths comfy/cmd main.py ``` Because pip installs the package as editable with `pip install -e .`, any changes you make to the repository will affect the next launch of `comfy`. In IDEA based editors like PyCharm and IntelliJ, the Relodium plugin supports modifying your custom nodes or similar code while the server is running. ## Linux Development Dependencies ```shell apt install -y git build-essential clang python3-dev python3-venv ``` # Custom Nodes Custom Nodes can be added to ComfyUI by copying and pasting Python files into your `./custom_nodes` directory. ## Installing Custom Nodes There are two kinds of custom nodes: vanilla custom nodes, which generally expect to be dropped into the `custom_nodes` directory and managed by a tool called the ComfyUI Extension manager ("vanilla" custom nodes) and this repository's opinionated, installable custom nodes ("installable"). ### Vanilla Custom Nodes Clone the repository containing the custom nodes into `custom_nodes/` in your working directory. Currently, this is not known to be compatible with ComfyUI Node Manager. ### Installable Custom Nodes These packages have been adapted to be installable with `pip` and download models to the correct places, using the **Known Models** functionality: - **ControlNet Auxiliary Preprocessors**: `pip install git+https://github.com/AppMana/comfyui_controlnet_aux.git`. - **LayerDiffuse**: `pip install git+https://github.com/hiddenswitch/ComfyUI-layerdiffuse.git`. - **Extra Models**: `pip install git+https://github.com/AppMana/ComfyUI_ExtraModels.git`. You will need `xformers`. Run `pip install git+https://github.com/owner/repository`, replacing the `git` repository with the installable custom nodes URL. This is just the GitHub URL. ## Authoring Custom Nodes Create a `requirements.txt`: ``` comfyui ``` Observe `comfyui` is now a requirement for using your custom nodes. This will ensure you will be able to access `comfyui` as a library. For example, your code will now be able to import the folder paths using `from comfyui.cmd import folder_paths`. Because you will be using my fork, use this: ``` comfyui @ git+https://github.com/hiddenswitch/ComfyUI.git ``` Additionally, create a `pyproject.toml`: ``` [build-system] requires = ["setuptools", "wheel", "pip"] build-backend = "setuptools.build_meta" ``` This ensures you will be compatible with later versions of Python. Finally, move your nodes to a directory with an empty `__init__.py`, i.e., a package. You should have a file structure like this: ``` # the root of your git repository /.git /pyproject.toml /requirements.txt /mypackage_custom_nodes/__init__.py /mypackage_custom_nodes/some_nodes.py ``` Finally, create a `setup.py` at the root of your custom nodes package / repository. Here is an example: **setup.py** ```python from setuptools import setup, find_packages import os.path setup( name="mypackage", version="0.0.1", packages=find_packages(), install_requires=open(os.path.join(os.path.dirname(__file__), "requirements.txt")).readlines(), author='', author_email='', description='', entry_points={ 'comfyui.custom_nodes': [ 'mypackage = mypackage_custom_nodes', ], }, ) ``` All `.py` files located in the package specified by the entrypoint with your package's name will be scanned for node class mappings declared like this: **some_nodes.py**: ```py from comfy.nodes.package_typing import CustomNode class Binary_Preprocessor(CustomNode): ... NODE_CLASS_MAPPINGS = { "BinaryPreprocessor": Binary_Preprocessor } NODE_DISPLAY_NAME_MAPPINGS = { "BinaryPreprocessor": "Binary Lines" } ``` These packages will be scanned recursively. Extending the `comfy.nodes.package_typing.CustomNode` provides type hints for authoring nodes. ## Adding Custom Configuration Declare an entry point for configuration hooks in your **setup.py** that defines a function that takes and returns an `configargparser.ArgParser` object: **setup.py** ```python setup( name="mypackage", ... entry_points={ 'comfyui.custom_nodes': [ 'mypackage = mypackage_custom_nodes', ], 'comfyui.custom_config': [ 'mypackage = mypackage_custom_config:add_configuration', ] }, ) ``` **mypackage_custom_config.py**: ```python import configargparse def add_configuration(parser: configargparse.ArgParser) -> configargparse.ArgParser: parser.add_argument("--openai-api-key", required=False, type=str, help="Configures the OpenAI API Key for the OpenAI nodes", env_var="OPENAI_API_KEY") return parser ``` You can now see your configuration option at the bottom of the `--help` command along with hints for how to use it: ```shell $ comfyui --help usage: comfyui.exe [-h] [-c CONFIG_FILE] [--write-out-config-file CONFIG_OUTPUT_PATH] [-w CWD] [-H [IP]] [--port PORT] [--enable-cors-header [ORIGIN]] [--max-upload-size MAX_UPLOAD_SIZE] [--extra-model-paths-config PATH [PATH ...]] ... [--openai-api-key OPENAI_API_KEY] options: -h, --help show this help message and exit -c CONFIG_FILE, --config CONFIG_FILE config file path --write-out-config-file CONFIG_OUTPUT_PATH takes the current command line args and writes them out to a config file at the given path, then exits -w CWD, --cwd CWD Specify the working directory. If not set, this is the current working directory. models/, input/, output/ and other directories will be located here by default. [env var: COMFYUI_CWD] -H [IP], --listen [IP] Specify the IP address to listen on (default: 127.0.0.1). If --listen is provided without an argument, it defaults to 0.0.0.0. (listens on all) [env var: COMFYUI_LISTEN] --port PORT Set the listen port. [env var: COMFYUI_PORT] ... --distributed-queue-name DISTRIBUTED_QUEUE_NAME This name will be used by the frontends and workers to exchange prompt requests and replies. Progress updates will be prefixed by the queue name, followed by a '.', then the user ID [env var: COMFYUI_DISTRIBUTED_QUEUE_NAME] --external-address EXTERNAL_ADDRESS Specifies a base URL for external addresses reported by the API, such as for image paths. [env var: COMFYUI_EXTERNAL_ADDRESS] --openai-api-key OPENAI_API_KEY Configures the OpenAI API Key for the OpenAI nodes [env var: OPENAI_API_KEY] ``` You can now start `comfyui` with: ```shell comfyui --openai-api-key=abcdefg12345 ``` or set the environment variable you specified: ```shell export OPENAI_API_KEY=abcdefg12345 comfyui ``` or add it to your config file: **config.yaml**: ```txt openapi-api-key: abcdefg12345 ``` ```shell comfyui --config config.yaml ``` Since `comfyui` looks for a `config.yaml` in your current working directory by default, you can omit the argument if `config.yaml` is located in your current working directory: ```shell comfyui ``` Your entry point for adding configuration options should **not** import your nodes. This gives you the opportunity to use the configuration you added in your nodes; otherwise, if you imported your nodes in your configuration entry point, the nodes will potentially be initialized without any configuration. Access your configuration from `cli_args`: ```python from comfy.cli_args import args from comfy.cli_args_types import Configuration from typing import Optional # Add type hints when accessing args class CustomConfiguration(Configuration): def __init__(self): super().__init__() self.openai_api_key: Optional[str] = None args: CustomConfiguration class OpenAINode(CustomNode): ... def execute(self): openai_api_key = args.open_api_key ``` # Troubleshooting > I see a message like `RuntimeError: '"upsample_bilinear2d_channels_last" not implemented for 'Half''` You must use Python 3.11 on macOS devices, and update to at least Ventura. > I see a message like `Error while deserializing header: HeaderTooLarge` Download your model file again. # Using the Editor ## Notes Only parts of the graph that have an output with all the correct inputs will be executed. Only parts of the graph that change from each execution to the next will be executed, if you submit the same graph twice only the first will be executed. If you change the last part of the graph only the part you changed and the part that depends on it will be executed. Dragging a generated png on the webpage or loading one will give you the full workflow including seeds that were used to create it. You can use () to change emphasis of a word or phrase like: (good code:1.2) or (bad code:0.8). The default emphasis for () is 1.1. To use () characters in your actual prompt escape them like \\( or \\). You can use {day|night}, for wildcard/dynamic prompts. With this syntax "{wild|card|test}" will be randomly replaced by either "wild", "card" or "test" by the frontend every time you queue the prompt. To use {} characters in your actual prompt escape them like: \\{ or \\}. Dynamic prompts also support C-style comments, like `// comment` or `/* comment */`. To use a textual inversion concepts/embeddings in a text prompt put them in the models/embeddings directory and use them in the CLIPTextEncode node like this (you can omit the .pt extension): ```embedding:embedding_filename.pt``` ##### How to increase generation speed? Make sure you use the regular loaders/Load Checkpoint node to load checkpoints. It will auto pick the right settings depending on your GPU. You can set this command line setting to disable the upcasting to fp32 in some cross attention operations which will increase your speed. Note that this will very likely give you black images on SD2.x models. If you use xformers or pytorch attention this option does not do anything. ```--dont-upcast-attention``` ##### How to show high-quality previews? Use ```--preview-method auto``` to enable previews. The default installation includes a fast latent preview method that's low-resolution. To enable higher-quality previews with [TAESD](https://github.com/madebyollin/taesd), download the [taesd_decoder.pth](https://github.com/madebyollin/taesd/raw/main/taesd_decoder.pth) (for SD1.x and SD2.x) and [taesdxl_decoder.pth](https://github.com/madebyollin/taesd/raw/main/taesdxl_decoder.pth) (for SDXL) models and place them in the `models/vae_approx` folder. Once they're installed, restart ComfyUI to enable high-quality previews. ## Keyboard Shortcuts | Keybind | Explanation | |------------------------------------|--------------------------------------------------------------------------------------------------------------------| | Ctrl + Enter | Queue up current graph for generation | | Ctrl + Shift + Enter | Queue up current graph as first for generation | | Ctrl + Z/Ctrl + Y | Undo/Redo | | Ctrl + S | Save workflow | | Ctrl + O | Load workflow | | Ctrl + A | Select all nodes | | Alt + C | Collapse/uncollapse selected nodes | | Ctrl + M | Mute/unmute selected nodes | | Ctrl + B | Bypass selected nodes (acts like the node was removed from the graph and the wires reconnected through) | | Delete/Backspace | Delete selected nodes | | Ctrl + Delete/Backspace | Delete the current graph | | Space | Move the canvas around when held and moving the cursor | | Ctrl/Shift + Click | Add clicked node to selection | | Ctrl + C/Ctrl + V | Copy and paste selected nodes (without maintaining connections to outputs of unselected nodes) | | Ctrl + C/Ctrl + Shift + V | Copy and paste selected nodes (maintaining connections from outputs of unselected nodes to inputs of pasted nodes) | | Shift + Drag | Move multiple selected nodes at the same time | | Ctrl + D | Load default graph | | Alt + `+` | Canvas Zoom in | | Alt + `-` | Canvas Zoom out | | Ctrl + Shift + LMB + Vertical drag | Canvas Zoom in/out | | Q | Toggle visibility of the queue | | H | Toggle visibility of history | | R | Refresh graph | | Double-Click LMB | Open node quick search palette | Ctrl can also be replaced with Cmd instead for macOS users # Configuration ## Extra Model Paths ### Command Line Arguments ``` usage: comfyui.exe [-h] [-c CONFIG_FILE] [--write-out-config-file CONFIG_OUTPUT_PATH] [-w CWD] [-H [IP]] [--port PORT] [--enable-cors-header [ORIGIN]] [--max-upload-size MAX_UPLOAD_SIZE] [--extra-model-paths-config PATH [PATH ...]] [--output-directory OUTPUT_DIRECTORY] [--temp-directory TEMP_DIRECTORY] [--input-directory INPUT_DIRECTORY] [--auto-launch] [--disable-auto-launch] [--cuda-device DEVICE_ID] [--cuda-malloc | --disable-cuda-malloc] [--dont-upcast-attention] [--force-fp32 | --force-fp16] [--bf16-unet | --fp16-unet | --fp8_e4m3fn-unet | --fp8_e5m2-unet] [--fp16-vae | --fp32-vae | --bf16-vae] [--cpu-vae] [--fp8_e4m3fn-text-enc | --fp8_e5m2-text-enc | --fp16-text-enc | --fp32-text-enc] [--directml [DIRECTML_DEVICE]] [--disable-ipex-optimize] [--preview-method [none,auto,latent2rgb,taesd]] [--use-split-cross-attention | --use-quad-cross-attention | --use-pytorch-cross-attention] [--disable-xformers] [--gpu-only | --highvram | --normalvram | --lowvram | --novram | --cpu] [--disable-smart-memory] [--deterministic] [--dont-print-server] [--quick-test-for-ci] [--windows-standalone-build] [--disable-metadata] [--multi-user] [--create-directories] [--plausible-analytics-base-url PLAUSIBLE_ANALYTICS_BASE_URL] [--plausible-analytics-domain PLAUSIBLE_ANALYTICS_DOMAIN] [--analytics-use-identity-provider] [--distributed-queue-connection-uri DISTRIBUTED_QUEUE_CONNECTION_URI] [--distributed-queue-worker] [--distributed-queue-frontend] [--distributed-queue-name DISTRIBUTED_QUEUE_NAME] options: -h, --help show this help message and exit -c CONFIG_FILE, --config CONFIG_FILE config file path --write-out-config-file CONFIG_OUTPUT_PATH takes the current command line args and writes them out to a config file at the given path, then exits -w CWD, --cwd CWD Specify the working directory. If not set, this is the current working directory. models/, input/, output/ and other directories will be located here by default. [env var: COMFYUI_CWD] -H [IP], --listen [IP] Specify the IP address to listen on (default: 127.0.0.1). If --listen is provided without an argument, it defaults to 0.0.0.0. (listens on all) [env var: COMFYUI_LISTEN] --port PORT Set the listen port. [env var: COMFYUI_PORT] --enable-cors-header [ORIGIN] Enable CORS (Cross-Origin Resource Sharing) with optional origin or allow all with default '*'. [env var: COMFYUI_ENABLE_CORS_HEADER] --max-upload-size MAX_UPLOAD_SIZE Set the maximum upload size in MB. [env var: COMFYUI_MAX_UPLOAD_SIZE] --extra-model-paths-config PATH [PATH ...] Load one or more extra_model_paths.yaml files. [env var: COMFYUI_EXTRA_MODEL_PATHS_CONFIG] --output-directory OUTPUT_DIRECTORY Set the ComfyUI output directory. [env var: COMFYUI_OUTPUT_DIRECTORY] --temp-directory TEMP_DIRECTORY Set the ComfyUI temp directory (default is in the ComfyUI directory). [env var: COMFYUI_TEMP_DIRECTORY] --input-directory INPUT_DIRECTORY Set the ComfyUI input directory. [env var: COMFYUI_INPUT_DIRECTORY] --auto-launch Automatically launch ComfyUI in the default browser. [env var: COMFYUI_AUTO_LAUNCH] --disable-auto-launch Disable auto launching the browser. [env var: COMFYUI_DISABLE_AUTO_LAUNCH] --cuda-device DEVICE_ID Set the id of the cuda device this instance will use. [env var: COMFYUI_CUDA_DEVICE] --cuda-malloc Enable cudaMallocAsync (enabled by default for torch 2.0 and up). [env var: COMFYUI_CUDA_MALLOC] --disable-cuda-malloc Disable cudaMallocAsync. [env var: COMFYUI_DISABLE_CUDA_MALLOC] --dont-upcast-attention Disable upcasting of attention. Can boost speed but increase the chances of black images. [env var: COMFYUI_DONT_UPCAST_ATTENTION] --force-fp32 Force fp32 (If this makes your GPU work better please report it). [env var: COMFYUI_FORCE_FP32] --force-fp16 Force fp16. [env var: COMFYUI_FORCE_FP16] --bf16-unet Run the UNET in bf16. This should only be used for testing stuff. [env var: COMFYUI_BF16_UNET] --fp16-unet Store unet weights in fp16. [env var: COMFYUI_FP16_UNET] --fp8_e4m3fn-unet Store unet weights in fp8_e4m3fn. [env var: COMFYUI_FP8_E4M3FN_UNET] --fp8_e5m2-unet Store unet weights in fp8_e5m2. [env var: COMFYUI_FP8_E5M2_UNET] --fp16-vae Run the VAE in fp16, might cause black images. [env var: COMFYUI_FP16_VAE] --fp32-vae Run the VAE in full precision fp32. [env var: COMFYUI_FP32_VAE] --bf16-vae Run the VAE in bf16. [env var: COMFYUI_BF16_VAE] --cpu-vae Run the VAE on the CPU. [env var: COMFYUI_CPU_VAE] --fp8_e4m3fn-text-enc Store text encoder weights in fp8 (e4m3fn variant). [env var: COMFYUI_FP8_E4M3FN_TEXT_ENC] --fp8_e5m2-text-enc Store text encoder weights in fp8 (e5m2 variant). [env var: COMFYUI_FP8_E5M2_TEXT_ENC] --fp16-text-enc Store text encoder weights in fp16. [env var: COMFYUI_FP16_TEXT_ENC] --fp32-text-enc Store text encoder weights in fp32. [env var: COMFYUI_FP32_TEXT_ENC] --directml [DIRECTML_DEVICE] Use torch-directml. [env var: COMFYUI_DIRECTML] --disable-ipex-optimize Disables ipex.optimize when loading models with Intel GPUs. [env var: COMFYUI_DISABLE_IPEX_OPTIMIZE] --preview-method [none,auto,latent2rgb,taesd] Default preview method for sampler nodes. [env var: COMFYUI_PREVIEW_METHOD] --use-split-cross-attention Use the split cross attention optimization. Ignored when xformers is used. [env var: COMFYUI_USE_SPLIT_CROSS_ATTENTION] --use-quad-cross-attention Use the sub-quadratic cross attention optimization . Ignored when xformers is used. [env var: COMFYUI_USE_QUAD_CROSS_ATTENTION] --use-pytorch-cross-attention Use the new pytorch 2.0 cross attention function. [env var: COMFYUI_USE_PYTORCH_CROSS_ATTENTION] --disable-xformers Disable xformers. [env var: COMFYUI_DISABLE_XFORMERS] --gpu-only Store and run everything (text encoders/CLIP models, etc... on the GPU). [env var: COMFYUI_GPU_ONLY] --highvram By default models will be unloaded to CPU memory after being used. This option keeps them in GPU memory. [env var: COMFYUI_HIGHVRAM] --normalvram Used to force normal vram use if lowvram gets automatically enabled. [env var: COMFYUI_NORMALVRAM] --lowvram Split the unet in parts to use less vram. [env var: COMFYUI_LOWVRAM] --novram When lowvram isn't enough. [env var: COMFYUI_NOVRAM] --cpu To use the CPU for everything (slow). [env var: COMFYUI_CPU] --disable-smart-memory Force ComfyUI to agressively offload to regular ram instead of keeping models in vram when it can. [env var: COMFYUI_DISABLE_SMART_MEMORY] --deterministic Make pytorch use slower deterministic algorithms when it can. Note that this might not make images deterministic in all cases. [env var: COMFYUI_DETERMINISTIC] --dont-print-server Don't print server output. [env var: COMFYUI_DONT_PRINT_SERVER] --quick-test-for-ci Quick test for CI. [env var: COMFYUI_QUICK_TEST_FOR_CI] --windows-standalone-build Windows standalone build: Enable convenient things that most people using the standalone windows build will probably enjoy (like auto opening the page on startup). [env var: COMFYUI_WINDOWS_STANDALONE_BUILD] --disable-metadata Disable saving prompt metadata in files. [env var: COMFYUI_DISABLE_METADATA] --multi-user Enables per-user storage. [env var: COMFYUI_MULTI_USER] --create-directories Creates the default models/, input/, output/ and temp/ directories, then exits. [env var: COMFYUI_CREATE_DIRECTORIES] --plausible-analytics-base-url PLAUSIBLE_ANALYTICS_BASE_URL Enables server-side analytics events sent to the provided URL. [env var: COMFYUI_PLAUSIBLE_ANALYTICS_BASE_URL] --plausible-analytics-domain PLAUSIBLE_ANALYTICS_DOMAIN Specifies the domain name for analytics events. [env var: COMFYUI_PLAUSIBLE_ANALYTICS_DOMAIN] --analytics-use-identity-provider Uses platform identifiers for unique visitor analytics. [env var: COMFYUI_ANALYTICS_USE_IDENTITY_PROVIDER] --distributed-queue-connection-uri DISTRIBUTED_QUEUE_CONNECTION_URI EXAMPLE: "amqp://guest:guest@127.0.0.1" - Servers and clients will connect to this AMPQ URL to form a distributed queue and exchange prompt execution requests and progress updates. [env var: COMFYUI_DISTRIBUTED_QUEUE_CONNECTION_URI] --distributed-queue-worker Workers will pull requests off the AMQP URL. [env var: COMFYUI_DISTRIBUTED_QUEUE_WORKER] --distributed-queue-frontend Frontends will start the web UI and connect to the provided AMQP URL to submit prompts. [env var: COMFYUI_DISTRIBUTED_QUEUE_FRONTEND] --distributed-queue-name DISTRIBUTED_QUEUE_NAME This name will be used by the frontends and workers to exchange prompt requests and replies. Progress updates will be prefixed by the queue name, followed by a '.', then the user ID [env var: COMFYUI_DISTRIBUTED_QUEUE_NAME] Args that start with '--' can also be set in a config file (config.yaml or config.json or specified via -c). Config file syntax allows: key=value, flag=true, stuff=[a,b,c] (for details, see syntax at https://goo.gl/R74nmi). In general, command-line values override environment variables which override config file values which override defaults. ``` # Using ComfyUI as an API / Programmatically There are multiple ways to use this ComfyUI package to run workflows programmatically: ### Embedded Start ComfyUI by creating an ordinary Python object. This does not create a web server. It runs ComfyUI as a library, like any other package you are familiar with: ```python from comfy.client.embedded_comfy_client import EmbeddedComfyClient async with EmbeddedComfyClient() as client: # This will run your prompt outputs = await client.queue_prompt(prompt) # At this point, your prompt is finished and all the outputs, like saving images, have been completed. # Now the outputs will contain the same thing that the Web UI expresses: a file path for each output. # Let's find the node ID of the first SaveImage node. This will work when you change your workflow JSON from # the example above. save_image_node_id = next(key for key in prompt if prompt[key].class_type == "SaveImage") # Now let's print the absolute path to the image. print(outputs[save_image_node_id]["images"][0]["abs_path"]) # At this point, all the models have been unloaded from VRAM, and everything has been cleaned up. ``` See [script_examples/basic_api_example.py](docs/examples/script_examples/basic_api_example.py) for a complete example. ### Remote Start ComfyUI as a remote server, then access it via an API. This requires you to start ComfyUI somewhere. Then access it via a standardized API. ```python from comfy.client.aio_client import AsyncRemoteComfyClient client = AsyncRemoteComfyClient(server_address="http://localhost:8188") # Now let's get the bytes of the PNG image saved by the SaveImage node: png_image_bytes = await client.queue_prompt(prompt) # You can save these bytes wherever you need! with open("image.png", "rb") as f: f.write(png_image_bytes) ``` See [script_examples/remote_api_example.py](docs/examples/script_examples/remote_api_example.py) for a complete example. ### OpenAPI Spec for Vanilla API, Typed Clients Use a typed, generated API client for your programming language and access ComfyUI server remotely as an API. You can generate the client from [comfy/api/openapi.yaml](comfy/api/openapi.yaml). ### RabbitMQ / AMQP Support Submit jobs directly to a distributed work queue. This package supports AMQP message queues like RabbitMQ. You can submit workflows to the queue, including from the web using RabbitMQ's STOMP support, and receive realtime progress updates from multiple workers. Continue to the next section for more details. # Distributed, Multi-Process and Multi-GPU Comfy This package supports multi-processing across machines using RabbitMQ. This means you can launch multiple ComfyUI backend workers and queue prompts against them from multiple frontends. ## Getting Started ComfyUI has two roles: `worker` and `frontend`. An unlimited number of workers can consume and execute workflows (prompts) in parallel; and an unlimited number of frontends can submit jobs. All of the frontends' API calls will operate transparently against your collection of workers, including progress notifications from the websocket. To share work among multiple workers and frontends, ComfyUI uses RabbitMQ or any AMQP-compatible message queue like SQS or Kafka. ### Example with RabbitMQ and File Share On a machine in your local network, install **Docker** and run RabbitMQ: ```shell docker run -it --rm --name rabbitmq -p 5672:5672 rabbitmq:latest ``` Find the machine's main LAN IP address: **Windows (PowerShell)**: ```pwsh Get-NetIPConfiguration | Where-Object { $_.InterfaceAlias -like '*Ethernet*' -and $_.IPv4DefaultGateway -ne $null } | ForEach-Object { $_.IPv4Address.IPAddress } ``` **Linux** ```shell ip -4 addr show $(ip route show default | awk '/default/ {print $5}') | grep -oP 'inet \K[\d.]+' ``` **macOS** ```shell ifconfig $(route get default | grep interface | awk '{print $2}') | awk '/inet / {print $2; exit}' ``` On my machine, this prints `10.1.0.100`, which is a local LAN IP that other hosts on my network can reach. On this machine, you can also set up a file share for models, outputs and inputs. Once you have installed this Python package following the installation steps, you can start a worker using: **Starting a Worker:** ```shell # you must replace the IP address with the one you printed above comfyui-worker --distributed-queue-connection-uri="amqp://guest:guest@10.1.0.100" ``` All the normal command line arguments are supported. This means you can use `--cwd` to point to a file share containing the `models/` directory: ```shell comfyui-worker --cwd //10.1.0.100/shared/workspace --distributed-queue-connection-uri="amqp://guest:guest@10.1.0.100" ``` **Starting a Frontend:** ```shell comfyui --listen --distributed-queue-connection-uri="amqp://guest:guest@10.1.0.100" --distributed-queue-frontend ``` However, the frontend will **not** be able to find the output images or models to show the client by default. You must specify a place where the frontend can find the **same** outputs and models that are available to the backends: ```shell comfyui --cwd //10.1.0.100/shared/workspace --listen --distributed-queue-connection-uri="amqp://guest:guest@10.1.0.100" --distributed-queue-frontend ``` You can carefully mount network directories into `outputs/` and `inputs/` such that they are shared among workers and frontends; you can store the `models/` on each machine, or serve them over a file share too. ### Operating The frontend expects to find the referenced output images in its `--output-directory` or in the default `outputs/` under `--cwd` (aka the "workspace"). This means that workers and frontends do **not** have to have the same argument to `--cwd`. The paths that are passed to the **frontend**, such as the `inputs/` and `outputs/` directories, must have the **same contents** as the paths passed as those directories to the workers. Since reading models like large checkpoints over the network can be slow, you can use `--extra-model-paths-config` to specify additional model paths. Or, you can use `--cwd some/path`, where `some/path` is a local directory, and, and mount `some/path/outputs` to a network directory. Known models listed in [**model_downloader.py**](./comfy/model_downloader.py) are downloaded using `huggingface_hub` with the default `cache_dir`. This means you can mount a read-write-many volume, like an SMB share, into the default cache directory. Read more about this [here](https://huggingface.co/docs/huggingface_hub/en/guides/download). # Containers Build the `Dockerfile`: ```shell docker build . -t hiddenswitch/comfyui ``` To run: ```shell docker run -it -v ./output:/workspace/output -v ./models:/workspace/models --gpus=all --ipc=host --ulimit memlock=-1 --ulimit stack=67108864 --rm hiddenswitch/comfyui ``` ## Community [Chat on Matrix: #comfyui_space:matrix.org](https://app.element.io/#/room/%23comfyui_space%3Amatrix.org), an alternative to Discord.