ComfyUI Extension: comfyui-ollama-image-to-prompt

<div align="center"> <h1>ComfyUI Ollama Image & Text to Prompt</h1> <p><strong>A ComfyUI custom node that integrates local Ollama models for both Vision-Language (VLM) image analysis and text-based prompt expansion operations.</strong></p>

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Overview

The Ollama Image/Text to Prompt node enables local Vision-Language Models (VLMs) and LLMs to run within ComfyUI workflows. It operates as a dual-purpose node:

• Vision Mode: Processes input images to produce natural language descriptions, Danbooru tags, or video motion instructions.
• Text Mode: Processes input text keywords without an image to expand them into detailed prompts and tags.

The node includes 10 distinct architectural presets for processing inputs.

Setup

1. Install Ollama locally and pull a required model (e.g., qwen3.5:9b).
2. Clone the repository into your ComfyUI custom nodes directory:

   cd ComfyUI/custom_nodes/
   git clone https://github.com/jluo-github/comfyui-ollama-image-to-prompt.git
   cd comfyui-ollama-image-to-prompt
   pip install -r requirements.txt
   

3. Restart ComfyUI.

Usage

The node can be configured for either image-based or text-based processing:

• Vision Setup (Image to Prompt): Provide an input to the image interface and select a processing mode (e.g., prompt).
• Text Setup (Text to Prompt): Leave the image interface disconnected, define input text via the keywords parameter, and select an expansion mode (e.g., expand_prompt).

Processing Modes

| Mode | Function | | :--- | :--- | | prompt | Extracts dense, highly-descriptive prose for models such as Flux or Qwen. | | danbooru_tags | Extracts comma-separated Booru-style tags, formatted for models like NoobAI or Illustrious. | | anima | Extracts character identities and visual features into stylized Anima prompts. | | expand_prompt | Expands concise user keywords into rich, full-sentence prompts. | | expand_tags | Expands concise user keywords into dense Danbooru tag formats. | | expand_anima | Expands user keywords to modify extracted image features into stylized Anima prompts. | | image_edit | Generates structured editing instructions for image-to-image models. | | video_prompt | Generates physics-based, cinematic instructions for video generation models. | | video_storyboard | Generates shot-by-shot directorial sequences. | | json_extract | Extracts high-detail structured output configured as JSON. |

Configuration Parameters

| Parameter | Default | Description | | :--- | :--- | :--- | | ollama_url | http://localhost:11434 | The endpoint URL for the local Ollama instance. | | model | qwen3.5:9b | The local vision or language model to execute. Options: qwen3.5:9b, qwen3.5:4b, qwen3-vl:8b, qwen3-vl:4b, gemma4:e4b, gemma4:e2b. | | mode | prompt | The architectural preset to use for processing. | | seed | 0 | Defines the randomization seed for generation determinism. | | keep_alive | 0 | Model VRAM cache duration in minutes (-1 for indefinite caching). | | thinking_mode | False | Enables reasoning logs for supported models. Disabling this bypasses the <think> generation phase. | | keywords | (Empty) | Provides base keywords for Text Mode expansion, or appends instructions/rules during Vision Mode processing. | | custom_prompt | (Empty) | Overrides the preset system prompt format. |

Outputs

• text (STRING): The generated prompt or formatted tag output.
• thought_process (STRING): The captured latent reasoning trace if thinking_mode is enabled for compatible models.

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License

MIT License

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Made with ❤️ for the ComfyUI community