Use start and end frames
Pin keyframe images to the start and end of a video clip for precise control over the output.
Before you start
- Images to use as keyframes.
- A video model that supports the slots you need.
Steps
- Select or attach a start-frame image.
- (Optional) Attach an end-frame image — the video will interpolate between them.
- Pick a model that supports both start and end frames. For example, Kling O3, Veo 3.1 Fast, and Kling O1 support this — but new models are added regularly. Check the Video models table for the full and up-to-date list.
- Describe what happens between the frames.
- Submit. The agent generates a video transitioning from start to end.
Tips
- Some models only support a start frame and will ignore the end frame. Check the "Frames you can attach" column in Video models before choosing.