SteadyRouter

SteadyRouter for ComfyUI

Chat, image and video models in ComfyUI with one SteadyRouter API key. The nodes run on SteadyRouter's servers, so they need no GPU and no model downloads.

• Text: hundreds of language models (GPT, Claude, Gemini, DeepSeek, Qwen, Kimi, Grok and more), for example to write or improve a prompt, or to describe an image.
• Images: Nano Banana (Gemini image models), GPT Image, Seedream, Qwen Image and Wan, Flux, Grok Imagine.
• Video: Seedance, Wan, Vidu.

Setup

1. Install SteadyRouter from the ComfyUI Manager (or the Comfy Registry) and restart ComfyUI.
2. Create a SteadyRouter account, add funds, and open API Keys → Create API Key in the console.
3. In ComfyUI open Settings → SteadyRouter and paste the key. Or set the STEADYROUTER_API_KEY environment variable before starting ComfyUI; when it is set, it is used instead of the field.
4. Add a node from the SteadyRouter category, or search for "SteadyRouter".

The key is never a node input, so it does not travel with workflows you share or with images that carry their workflow. The settings field is saved on the ComfyUI server in user/default/comfy.settings.json, where anyone who can open this ComfyUI can read it. If others can reach your ComfyUI, use the environment variable. When ComfyUI runs with --multi-user, only the environment variable is read.

Nodes

| Node | What it does | Output | |---|---|---| | SteadyRouter Chat | Any language model. Optional system instructions, images to look at, length limit and JSON output | text | | SteadyRouter Image | Any image model. Connect reference images to edit or combine them | image | | Nano Banana, GPT Image, Seedream, Qwen Image & Wan | The same, showing only that family's models and the settings they take | image | | SteadyRouter Video | Any video model, with an optional first frame. Waits for the video | video, task_id | | Seedance, Wan Video, Vidu | The same, showing only that family's models | video, task_id | | SteadyRouter Video Task | Picks up a video by its task ID | video |

Connect image to Save Image or Preview Image, video to Save Video, and text to any text input (for example the prompt of another node) or to Preview as Text.

Usage notes

• Every run is a paid request. ComfyUI reuses the last result while all inputs stay the same; the seed input is not sent to the model and only decides that. The image and video nodes pick a new seed on every run, the Chat node keeps its seed until you change it. Current prices are on Model Square. Requests that fail are not charged, and a failed video task is refunded.
• The model lists ship with each release of this package. For a model that is newer than your version, type its name in custom_model (an advanced input), or update the package.
• A video usually takes one to a few minutes. The video nodes wait up to wait_minutes (8 by default). If the video is not ready by then, the node stops with the task ID in its error message; put that ID into SteadyRouter Video Task to pick the video up. Running the video node again would make, and charge for, a second video.
• Each model takes its own resolutions, lengths and first-frame rules: see the video guide. Values a model does not take are refused before anything is sent.
• Videos over 200 MB are not loaded; the error gives the task ID and a command to download the video from SteadyRouter with your key. Videos are kept for a limited time only, so save yours soon.
• Images come back in RGB. If a model returns several images of different sizes, the ones that match the first image's size are kept.

Privacy

The nodes send your prompts, any images you connect, the settings you choose and your API key to SteadyRouter (api.steadyrouter.com), which forwards the request to the upstream provider that serves the model; see SteadyRouter's Privacy Policy. Finished files are downloaded over HTTPS from the storage links in the reply, without your key, and handed straight to ComfyUI; addresses on private networks are refused. The package stores nothing, collects no analytics and does not log your key.

Requirements

• ComfyUI with the V3 node API (comfy_api.latest); tested with ComfyUI 0.43.0.
• Outbound HTTPS access to api.steadyrouter.com and to the storage hosts the files come from.

Links

• Source code: https://github.com/steadyrouter/sr-plugins
• Docs: https://www.steadyrouter.com/site/docs.html
• Contact: [email protected]