Free Local AI Video Generation with LTX 2.3 in ComfyUI

Melvin Vivas · X video post · 2026-04-16 · 0:10 · 81 views · Open on X

Topics: AI Dev Tools & Productivity, Industry Trends & Job Market · Level: beginner

Summary

A 10-second showcase post. Melvin Vivas shares a sample video made with the LTX 2.3 video model running locally in ComfyUI, and says it cost nothing to produce. There's no tutorial or workflow, only a sample showing that open video models can run on your own machine at no cost.

Key points

• LTX 2.3 is a video generation model from @ltx_model (LTX), and the creator ran it locally.
• ComfyUI was the interface the creator used to run the model.
• The creator says he spent 'not a single cent' because everything ran locally and free, with no paid API.
• The creator calls the output quality 'impressive'.
• The post gives no workflow, settings, prompts or hardware details, so you'd need to look those up yourself.

Resources mentioned

• LTX 2.3 · tool · huggingface.co · free
  A video generation model from LTX (Lightricks) that makes video from text or images, including start- and end-frame image-to-video, with audio, portrait output and 24/48 fps.
  Also in: Local Video Generation with LTX 2.3 on an RTX 3090 (Melvin Vivas on X · notes), AI Video Generation Locally with ComfyUI and 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 Open Video Model Locally with ComfyUI on an RTX 3090 (Melvin Vivas on X · notes) and 3 more
• 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