LTX Video Model: FREE AI Video Generator in 30 Seconds

Discover how to run the LTX video model on your computer for free using ComfyUI. This lightning-fast open-source video generator creates high-quality videos in just 30 seconds, making it perfect for building AI stories with consistent characters and complete shot control.

Setting Up LTX Video Model on Your Computer

To get started with LTX on your local setup, you'll need several components installed properly.

First, install ComfyUI using the dedicated tutorial guide. If you already have ComfyUI, update to the latest version by opening the update folder and executing the update file.

Next, download the video model version 0.9.5 from the official page and place it in the designated models folder. Download the text encoder file and place it in the correct directory as well.

Creating Videos from Text Prompts

Download the text-to-video workflow file and drag it into ComfyUI to load it.

Write detailed, precise prompts in the text box for better results. Include camera movement descriptions, background details, and lighting specifications.

Configure your video settings:
- Resolution: 1024x576 works well with LTX's speed
- Length: Up to 5 seconds (129 frames) or stick with 97 frames for 4-second videos
- Steps: Set to 40 for text-to-video generation

Adjusting Motion Controls for Different Effects

For fast, dynamic action scenes:
- Max shift: 2.5 to 3
- Base shift: 1 to 1.5
- Terminal: 0.05

For minimal movement:
- Max shift: 1 to 1.5
- Base shift: 0.6 to 0.8
- Stretch: false
- Terminal: 0.2

Set CFG value between 3-6 to control how closely results match your prompt.

Output Settings Configuration

Change the file name prefix to "LTX" and switch loss list to true. Set quality to 100 for best results.

For webm compatibility, bypass the save webm node using Ctrl+B and adjust the CRF value for better quality output.

Using LTX Studio Online

If local installation seems complicated, LTX Studio offers full capabilities online with additional filmmaking tools.

Generate images directly by writing prompts, choosing aspect ratios, and selecting visual styles. Animate any generated image by adding motion prompts and adjusting duration up to 9 seconds.

The camera control feature lets you adjust angles on both start and end frames for precise movement control.

Creating Complete AI Stories

LTX Studio can generate entire stories from simple descriptions or full scripts.

Choose your format, add genres, and set the tone. The system generates storylines, creates consistent characters, and produces detailed shot descriptions.

Edit characters by adjusting age, hair color, eye color, and clothing. Use the train actor feature to maintain consistent appearances throughout your story.

Advanced Character Control Features

Access generative fill, object removal, and facial expression controls. Choose from preset emotions or use custom controls to adjust head position, smile intensity, winking, and gaze direction.

The composition feature lets you scribble layouts or upload reference sketches for real-time image updates.

Converting Images to Videos

Download the image-to-video workflow and load your source image into ComfyUI.

Set image compression between 40-60 to control how closely the video follows the original image. Match your resolution to the source image aspect ratio.

Write detailed prompts describing desired movement rather than image content. Focus on water flow, camera movement, and other dynamic elements.

For advanced control, use the end frame feature by loading a second image showing the desired final state.

Optimizing Generation Settings

Experiment with CFG values and image compression for different results. Lower compression makes videos stick more closely to source images.

Generation times average 30-43 seconds per video, making rapid experimentation possible until you achieve desired results.

Conclusion

LTX represents a breakthrough in local AI video generation, offering professional-quality results with unprecedented speed. Whether using the free local setup or the enhanced online studio, you can create compelling video content in seconds rather than hours.

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