New #1 open-source AI video generator is here! Fast + 4K + audio + low vram
LTX-2 sets a new benchmark for open-source video generation with native audio and high-resolution support, giving filmmakers complete offline control.
What this lesson covers
This tutorial demonstrates how to install and run the LTX-2 open-source video generator locally within ComfyUI. It covers text-to-video, image-to-video, low VRAM optimization, and ControlNet integration.
Key takeaways from the creator
AI-extracted notes, not independently verified product claims. Timestamp links let you check each point in the original video.
- 00:00 ↗
LTX-2 is an open-source video generator featuring native audio, up to 4K resolution, and compatibility with low VRAM setups when configured properly.
- 03:14 ↗
ComfyUI serves as the primary graphical interface for running LTX-2 locally using dedicated custom nodes.
- 06:44 ↗
Users can choose between full and distilled LTX-2 workflows depending on their hardware capabilities and generation speed requirements.
- 21:05 ↗
Image-to-video workflows allow creators to animate static frames while retaining stylistic consistency.
Workflow outlined in the video
- Update your ComfyUI installation to the latest stable version before adding new custom nodes.
- Download the ComfyUI-LTXVideo custom nodes repository via the ComfyUI manager.
- Download the appropriate LTX-2 model checkpoints and place them in the correct ComfyUI checkpoints folder.
- Load the provided LTX-2 text-to-video or image-to-video templates to start generating offline.
Before you use this workflow
These notes describe the source video at its publication date. Model access, pricing, connectors and interfaces may have changed. Check the original source and the provider’s current documentation before installing an add-on, connecting an account or spending credits.
ReelStack has not independently tested this workflow. Preview one representative shot and check motion, continuity and output quality before applying it to a full production. No result, cost saving or model capability is guaranteed.
Explore the tools
How to interpret the numbers
248,735 views captured 23 October 2026. ReelStack recommendation score: 56/100. Formula: radar-v5. This is ReelStack’s calculation, not a YouTube rating or a measure of factual accuracy.
Show the calculation
- 45% performance: 1.83× views vs 11 other channel videos observed at a similar age. View-evidence factor 100% (views / (views + 1,000))
- 25% freshness: 0/100 with a 14-day half-life
- 20% momentum: 146 views/day vs 21 channel baseline (5 comparable uploads), with the same view-evidence factor
- 10% engagement: 100/100; likes + 4× comments, smoothed with a 500-view neutral prior