Kling 3.0 introduces a groundbreaking approach to video generation by allowing users to input a first and last frame image to create a seamless video sequence. This innovative technique, known as First Last Frame to Video (FLF2V), leverages the Kling 3.0 model to interpolate between the two frames with remarkable precision. Unlike traditional video generation methods that rely heavily on fixed frame rates and linear transitions, Kling 3.0 provides a dynamic multi-shot generation process. This enables precise control over individual elements within the video, allowing for adjustments in motion, timing, and composition.
One of the standout features of Kling 3.0 is its support for multilingual prompts, making it accessible to a global audience and versatile across different languages and contexts. This capability not only enhances the user experience but also broadens the potential applications of the workflow. By integrating advanced AI techniques with intuitive user input, Kling 3.0 sets a new standard in video generation, offering unprecedented flexibility and creativity for content creators, filmmakers, and digital artists.
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/351e79d06ae1.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 "Kling 3.0: First Last Frame 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("api_kling_v3_flf2v_api.json")
asset = client.assets.from_file("input.png")
wf.set_input("1", "image", asset) # LoadImage
job = client.run(wf)
for output in job.get_outputs("2"): # 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
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