Kling AI video generation can take hours mainly because the platform processes requests on shared cloud servers, and heavy demand often creates long queues.
Free-tier users are usually placed in lower-priority queues, so jobs may take hours or even days during peak traffic.
Rendering time also increases when prompts are complex or videos include longer durations, high resolution, or advanced effects.
These elements require significantly more computation, so simplifying the prompt or generating shorter clips can reduce processing time.
You can also try submitting jobs during off-peak hours or switching to simpler generation modes such as text-to-video instead of image-to-video.
These methods often process faster because they use fewer resources and avoid server congestion