SF ComfyUI Nodes

A collection of custom ComfyUI nodes developed by Stillfront. All nodes are prefixed with SF for easy searching in ComfyUI.

---

Installation

Via ComfyUI Manager (recommended)

Search for "SF ComfyUI Nodes" in the ComfyUI Nodes Manager and click Install.

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/Stillfront/comfyui-sf-nodes.git
cd comfyui-sf-nodes
pip install -r requirements.txt

---

Configuration

Copy config.ini.tmp to config.ini and fill in your API keys:

[API]
wavespeed_api_key = YOUR_WAVESPEED_API_KEY

Alternatively, set keys via environment variables:

| Variable | Used by | |---|---| | WAVESPEED_API_KEY | All WaveSpeed nodes | | ANTHROPIC_API_KEY | SF LLM Chat (Claude) | | GEMINI_API_KEY | SF LLM Chat (Gemini) | | OPENAI_API_KEY | SF LLM Chat (GPT) | | Google Application Default Credentials | All VertexAI nodes |

For VertexAI nodes, authenticate via the Google Cloud CLI:

gcloud auth application-default login

---

Node Categories

Stillfront/LLM

Chat with large language models directly inside your ComfyUI workflows, with optional image input.

| Node | Description | |---|---| | SF LLM Chat | Multi-model chat supporting Claude (Opus, Sonnet, Haiku), Gemini 3 (Pro, Flash), and OpenAI GPT-5 series. Supports image input and reports token usage. | | SF Text Analyzer | Analyze and process text strings within workflows. |

---

Stillfront/VertexAI

Generate images and videos using Google Cloud Vertex AI. Requires a Google Cloud project and Application Default Credentials.

| Node | Description | |---|---| | SF VertexAI Imagen 3 Text to Image | Generate images from text using Google Imagen 3.0. Supports multiple aspect ratios, safety settings, and up to 4 images per run. | | SF VertexAI Imagen 4 Text to Image | Generate images using the latest Imagen 4.0 model. | | SF VertexAI Imagen 4 Upscale | Upscale images using Imagen 4.0. | | SF VertexAI Nano Banana Pro | Image generation via the Nano Banana Pro model on Vertex AI. | | SF VertexAI Nano Banana Pro Edit | Edit existing images using Nano Banana Pro on Vertex AI. | | SF VertexAI Veo 3.1 Text to Video | Generate videos from text prompts using Google VEO 3.1 via Vertex AI. | | SF VertexAI Veo 3.1 Image to Video | Animate a still image into a video using Google VEO 3.1 via Vertex AI. |

---

Stillfront/WaveSpeed

Image and video generation nodes powered by the WaveSpeed AI API. All nodes require the SF WaveSpeed Client node to authenticate.

Setup

Connect an SF WaveSpeed Client node (enter your WaveSpeed API key) to any WaveSpeed generation node.

Video Generation

| Node | Description | |---|---| | SF WaveSpeed VEO 3.1 Text to Video | Google VEO 3.1 text-to-video generation. | | SF WaveSpeed VEO 3.1 Image to Video | Google VEO 3.1 image-to-video animation. | | SF WaveSpeed VEO 3.1 Reference to Video | VEO 3.1 video generation using a reference image. | | SF WaveSpeed VEO 3.1 Fast Text to Video | Faster VEO 3.1 text-to-video variant. | | SF WaveSpeed VEO 3.1 Fast Image to Video | Faster VEO 3.1 image-to-video variant. | | SF WaveSpeed Sora 2 Text to Video | OpenAI Sora 2 text-to-video generation. | | SF WaveSpeed Sora 2 Text to Video Pro | Sora 2 Pro — higher quality text-to-video. | | SF WaveSpeed Sora 2 Image to Video | OpenAI Sora 2 image-to-video animation. | | SF WaveSpeed Sora 2 Image to Video Pro | Sora 2 Pro — higher quality image-to-video. | | SF WaveSpeed Wan 2.5 Text to Video | WAN 2.5 text-to-video generation. | | SF WaveSpeed Wan 2.5 Text to Video Fast | WAN 2.5 faster text-to-video variant. | | SF WaveSpeed Wan 2.5 Image to Video | WAN 2.5 image-to-video animation. | | SF WaveSpeed Wan 2.5 Image to Video Fast | WAN 2.5 faster image-to-video variant. | | SF WaveSpeed Wan 2.2 Animate | WAN 2.2 image animation. | | SF WaveSpeed InfiniteTalk | Animate a portrait image with audio to create a talking-head video. | | SF WaveSpeed InfiniteTalk Multi | InfiniteTalk with multiple reference inputs. |

Image Generation

| Node | Description | |---|---| | SF WaveSpeed Nano Banana Text to Image | Nano Banana text-to-image generation. | | SF WaveSpeed Nano Banana Edit | Edit images using the Nano Banana model. | | SF WaveSpeed Nano Banana Pro Text to Image | Nano Banana Pro text-to-image. | | SF WaveSpeed Nano Banana Pro Text to Image Multi | Nano Banana Pro with multiple inputs. | | SF WaveSpeed Nano Banana Pro Text to Image Ultra | Nano Banana Pro Ultra quality variant. | | SF WaveSpeed Nano Banana Pro Edit | Edit images with Nano Banana Pro. | | SF WaveSpeed Nano Banana Pro Edit Multi | Nano Banana Pro edit with multiple inputs. | | SF WaveSpeed Nano Banana Pro Edit Ultra | Nano Banana Pro edit Ultra quality variant. | | SF WaveSpeed Qwen Text to Image | Qwen text-to-image generation. | | SF WaveSpeed Qwen Edit | Edit images using Qwen. | | SF WaveSpeed Qwen Edit Plus | Qwen Edit with extended capabilities. | | SF WaveSpeed Qwen Edit LoRA | Qwen edit with LoRA support. | | SF WaveSpeed Qwen Edit Plus LoRA | Qwen Edit Plus with LoRA support. | | SF WaveSpeed Seedream V4 | ByteDance Seedream V4 image generation. | | SF WaveSpeed Seedream V4 Sequential | Seedream V4 sequential generation. | | SF WaveSpeed Seedream V4 Edit | Edit images with Seedream V4. | | SF WaveSpeed Seedream V4 Edit Sequential | Seedream V4 sequential editing. | | SF WaveSpeed Wan 2.5 Text to Image | WAN 2.5 text-to-image generation. | | SF WaveSpeed Wan 2.5 Image Edit | Edit images using WAN 2.5. | | SF WaveSpeed Flux Kontext Dev | Flux Kontext Dev image generation. | | SF WaveSpeed Flux Kontext Pro | Flux Kontext Pro image generation. | | SF WaveSpeed Flux Kontext Max | Flux Kontext Max — highest quality variant. | | SF WaveSpeed Flux ControlNet Union Pro 2 | Flux image generation with ControlNet guidance. |

Upscalers

| Node | Description | |---|---| | SF WaveSpeed Image Upscaler | Upscale images via WaveSpeed AI. | | SF WaveSpeed Runway Upscale | Upscale images using RunwayML via WaveSpeed. |

---

Stillfront/Utils

Utility nodes for building and enhancing workflows.

| Node | Description | |---|---| | SF Prompt List | Combine 2–50 text inputs into a single comma-separated string. Add or remove inputs using the inputcount control. | | SF Qwen Resolution | Visual resolution preset selector with aspect ratio preview. | | SF Text Analyzer | Analyze text content within a workflow. | | SF Google Sheet Cell | Read a single cell from a publicly shared Google Sheet. Specify the sheet tab by GID, row by number (1-indexed), and column by letter (A, B, C, ...). | | SF Google Sheet Range | Read a range of cells from a publicly shared Google Sheet and join them into a single string with a configurable delimiter. Supports multi-row, multi-column ranges. |

Google Sheet nodes require the sheet to be shared as "Anyone with the link can view." The sheet tab GID is found in the browser URL after #gid= when you have that tab open.

---

Requirements

• Python 3.10+
• ComfyUI
• See requirements.txt for full Python dependency list

License

MIT License — see LICENSE for details.