Use the negative prompt to tell the model what to avoid in the output. This helps remove unwanted objects, styles, colors, or details. For example, you can say “no text”, “no extra people”, “no blurry areas”, or “no logos”. A clear negative prompt improves the accuracy and focus of the final result.

A starting number (usually a random integer) that determines the randomness in the generation process.

The aspect ratio of the generated video. If it is not set to 16:9, the video will be outpainted.