The LTX-2.3: Text to Video workflow in ComfyUI is designed to transform a text prompt into a dynamic video, with the option to use an image as a reference. This workflow leverages the LTX-2.3 model, developed by Lightricks, which is optimized for generating high-quality videos with enhanced motion, audio, and detail. The workflow is particularly effective for creating videos in both portrait and landscape formats, making it versatile for various applications.
Technically, the workflow integrates several key nodes, including the SaveVideo node for outputting the final video, and the LoadImage node for incorporating reference images. The MarkdownNote node is used to provide inline documentation and guidance within the workflow. The core of the process involves using the b94257db-cdc1-45d3-8913-ca61e782d9c1 node, which is responsible for interpreting the text prompt and generating the corresponding video content. This workflow is beneficial for users looking to quickly produce visually compelling videos from textual descriptions, with the added ability to refine the output using reference images.
API
Use this workflow from code
Every Comfy workflow is a JSON graph. The payload below is this workflow, exactly as ComfyUI runs it — fetch it from the URL, keep it in version control, or load it in ComfyUI and run it node by node.
GET https://comfy.org/workflows/download/47d245c34a7d.jsonFetching workflow JSON…
Run it from Python or TypeScript with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
# Install (beta)
pip install comfy-sdk # Python
npm i @comfyorg/sdk # TypeScript
# Run "LTX-2.3: Text to Video" (Python)
from comfy_sdk import Comfy
client = Comfy(api_key="comfyui-...")
# This workflow, exported in API format (see note below)
wf = client.workflows.from_file("video_ltx2_3_t2v_api.json")
job = client.run(wf)
for output in job.get_outputs("75"): # SaveVideo
output.to_file(output.name)The SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API). API access requires a Comfy Cloud plan with an API key. SDK docs · Get an API key
FAQ
