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Video Generation Guide

Turn your images into stunning AI-powered videos


Video generation is one of LetzAI's most powerful features. This guide will teach you how to create stunning AI videos from your images using the Animate tab.


Getting Started with Video Generation

LetzAI supports multiple video generation models, each with unique capabilities:

  • Kling: Excellent for realistic motion and complex scenes
  • Wan: Great for artistic and stylized animations
  • Veo: Google's latest video model for high-quality results
  • Sora: OpenAI's video generation model


Image-to-Video Animation

The most common use case is turning a still image into a video. Here's how:

  1. Select your image: Navigate to the Animate tab and upload or select an existing image
  2. Choose a model: Select the video model that best fits your needs
  3. Add motion prompts: Describe the motion you want (e.g., "gentle wind blowing through hair", "camera slowly zooming in")
  4. Set duration: Choose how long you want your video to be
  5. Generate: Click generate and let the AI work its magic


Video-Extend Feature

The Video-Extend feature allows you to continue an existing video by generating additional frames that match the original motion and style.

How it works:

  1. Select or upload a video in the Animate tab
  2. In your Animate editing Menu select Extend mode instead of Edit
  3. Add a new motion prompt describing what should happen next
  4. Select the quality and audio settings


Additional Shots (Kling V3)

Kling V3 includes a feature called Additional Shots, which lets you guide different sections of the same generated video using multiple motion prompts.

You still generate one final video file, but the model follows a new prompt for each timed section of the clip. These sections can either transition smoothly or change abruptly depending on the prompts you provide. For example, a new shot might introduce a different camera angle, framing, or scene variation.

How it works:

  • Shot 1 always starts from your uploaded reference image
  • You can add more shots to describe what should happen next in the timeline
  • Each shot has its own motion prompt and duration
  • The final video can be up to 15 seconds total
  • Each shot must be at least 3 seconds long

Think of Additional Shots as creating a timeline of instructions for one generated video.

Example timeline:

  • Shot 1 (0–5s): Camera slowly zooms toward the subject.
  • Shot 2 (5–10s): Hard cut to a side angle as the subject starts walking.
  • Shot 3 (10–15s): Wide cinematic shot with wind moving through the environment.

The AI combines these sections into one final video, following your prompts step by step, all referencing your originally uploaded image.



Writing Effective Motion Prompts

The key to great video generation is describing motion clearly:

Camera Movement

  • "Camera slowly panning left to right"
  • "Gradual zoom into the subject's face"
  • "Camera tracking forward through the scene"
  • "Orbiting around the subject"

Subject Motion

  • "Person turns their head slightly and smiles"
  • "Hair gently blowing in the wind"
  • "Eyes blinking naturally"
  • "Subtle breathing movement"

Environment Animation

  • "Leaves rustling in the breeze"
  • "Water rippling softly"
  • "Clouds drifting across the sky"
  • "Fire flickering and dancing"


Best Practices

Choose the Right Source Image

  • High quality: Start with a clear, well-lit image
  • Good composition: Images with clear subjects animate better
  • Natural poses: Avoid extreme or awkward poses
  • Appropriate aspect ratio: 16:9 or 9:16 work well for video

Keep Motion Realistic

  • Start with subtle movements - dramatic changes can look unnatural
  • Match the motion to what would be physically possible
  • Consider the weight and physics of objects in your scene


Video Duration and Quality

Different models support different video lengths:

  • Short clips (2-5 seconds): Best for social media loops and GIFs
  • Medium clips (5-10 seconds): Good for most content needs
  • Longer videos: Available with select models for more complex narratives

Higher quality and longer duration videos will use more credits. Check the credit costs before generating.



Common Use Cases

Social Media Content

Create eye-catching animated posts for Instagram, TikTok, or Twitter. Short looping videos with subtle motion perform well.

Product Showcases

Animate product images with gentle rotation or lighting changes to create dynamic marketing content.

Portrait Animation

Bring portraits to life with natural movements like blinking, subtle smiles, or hair movement.

Landscape and Nature

Add movement to landscape photos with flowing water, moving clouds, or swaying vegetation.



Troubleshooting

Video looks distorted

  • Try using a higher quality source image
  • Simplify your motion prompt
  • Choose a different model

Motion is too subtle

  • Be more specific in your motion description
  • Try a longer duration
  • Increase motion intensity if the option is available

Motion is unnatural

  • Reduce the complexity of your motion prompt
  • Focus on one type of motion at a time
  • Match the motion to what's physically realistic


Advanced Tips

  • Combine with upscaling: Upscale your source image first for higher quality video output
  • Iterate: Generate multiple versions and pick the best one
  • Edit first: Use the Edit tab to perfect your image before animating
  • Consider the loop: For social media, think about how the video will loop

Ready to create your first video? Head to the Animate tab and start experimenting!