comfyui-ollama

ComfyUI Ollama

Custom ComfyUI Nodes for interacting with Ollama using the ollama python client.

Integrate the power of LLMs into ComfyUI workflows easily or just experiment with LLM inference.

To use this properly, you would need a running Ollama server reachable from the host that is running ComfyUI.

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Installation

1. Install ollama server on the desired host

Download for macOS

Download for Windows

Install on Linux

curl -fsSL https://ollama.com/install.sh | sh

Docker Installation

CPU only

docker run -d -p 11434:11434 -v ollama:/root/.ollama --name ollama ollama/ollama

NVIDIA GPU

docker run -d -p 11434:11434 --gpus=all -v ollama:/root/.ollama --name ollama  ollama/ollama

2. Install the custom nodes

Use ComfyUI's built-in extension manager to install the nodes. Search for comfyui-ollama by Stav Sapir.

Or

If you prefer ComfyUI-Manager, search for ollama and select the one by stavsap

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Or

1. git clone into the custom_nodes folder inside your ComfyUI installation or download as zip and unzip the contents to custom_nodes/compfyui-ollama.
2. pip install -r requirements.txt
3. Start/restart ComfyUI

Configuration (Ollama Key)

If you are using Ollama Cloud templates that require authentication, you must provide your Ollama public key.

You can do this automatically with the CLI:

ollama signin

Or by manually adding your public key at ollama.com/settings/key.

Your public key is located at:

OS	Path to id_ed25519.pub
macOS	~/.ollama/id_ed25519.pub
Linux	/usr/share/ollama/.ollama/id_ed25519.pub
Windows	C:\Users<username>.ollama\id_ed25519.pub

See Ollama's FAQ for more details.

Nodes

OllamaGenerate

A node that provides ability to set the system prompt and the prompt.

Ability to save context locally in the node enable/disable

Inputs:

• OllamaConnectivity (optional)
• OllamaOptions (optional)
• images (optional)
• context (optional), a context from other OllamaConnectivity
• meta (optional), passing metadata of the OllamaConnectivity and OllamaOptions from other OllamaGenerate node.

Notes:

• For this node to be operational, OllamaConnectivity or meta must be inputted!.
• If images are inputted and a chain of meta usage is made, all the images need to be passed as well to the next OllamaConnectivity nodes.

OllamaChat

A node for conversational interaction using the dedicated Ollama chat endpoint (ollama.chat). It manages the full conversation history natively and allows for chained sequences of chat nodes.

• Functionality: Unlike OllamaGenerate, this node is designed specifically for multi-turn conversations and cloud models with your Ollama public key (see the Configuration section).
• Key Features:
  • Conversation history is handled natively within the node instance.
  • Dedicated history outputs for *