Free Local AI Video Generation with LTX 2.3 in ComfyUI

Melvin Vivas · X video post · 2026-04-13 · 0:10 · 1,787 views · Open on X

Topics: AI Dev Tools & Productivity · Level: beginner

Summary

A 10-second sample clip made with the LTX 2.3 video generation model running in ComfyUI. The creator says it ran locally and cost nothing. There is no tutorial, workflow file or settings. The only lesson is that you can try open video models on your own hardware with ComfyUI.

Key points

• LTX 2.3 is a video generation model from LTX (@ltx_model) that can run locally.
• ComfyUI is a node-based interface for running image and video generation models on your own machine.
• The creator says the clip cost nothing to make because it ran locally in ComfyUI with no paid API.
• The post doesn't share a workflow, prompt, hardware specs or settings. It only shows a sample of the output quality.

Resources mentioned

• ComfyUI · tool · x.com · free
  The official X account for ComfyUI, the node-based tool for generative AI workflows, which announces things like ComfyUI Agent.
  Also in: ComfyUI Agent: early access announcement (Melvin Vivas on X · notes), Comfy Router: One API for Image, Video, 3D and Audio Model Providers (Melvin Vivas on X · notes), Generating AI Video Locally with MiniMax H3 in ComfyUI on an RTX 3090 (Melvin Vivas on X · notes), Running MiniMax M3 Locally in ComfyUI on an RTX 3090 (Melvin Vivas on X · notes) and 23 more
• LTX (@ltx_model) on X · tool · x.com · free
  The official X account of the LTX video model team, with release news and updates.
  Also in: Local AI Video Generation with Audio Using LTX 2.3 (Melvin Vivas on X · notes), LTX 2.3 Image-to-Video Running Locally (Demo) (Melvin Vivas on X · notes), Running the LTX 2.3 Video Model Locally on an RTX 3090 with ComfyUI (Melvin Vivas on X · notes)