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What is ltx-desktop?

lightricks/ltx-desktop — explained in plain English

Analysis updated 2026-05-18

1,583TypeScriptAudience · vibe coderComplexity · 4/5LicenseSetup · hard

In one sentence

LTX Desktop is a free desktop app for generating videos from text, images, or audio using Lightricks's LTX AI models, running locally on strong NVIDIA GPUs or via a cloud API otherwise.

Mindmap

mindmap
  root((LTX Desktop))
    What it does
      Text to video
      Image to video
      Built in video editor
    Tech stack
      TypeScript
      Electron
      Python backend
    Use cases
      Local GPU video generation
      Cloud API video generation
      Video editing on a timeline
    Audience
      Video creators
      AI hobbyists
      Developers

Code map

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filefunction / class

What do people build with it?

USE CASE 1

Generate a short video from a text prompt or a single image.

USE CASE 2

Run AI video generation locally on a powerful NVIDIA GPU without sending data to the cloud.

USE CASE 3

Use the cloud API to generate videos on a Mac or a weaker Windows or Linux machine.

USE CASE 4

Edit and arrange generated video clips on a timeline inside the built-in editor.

What is it built with?

TypeScriptReactElectronPythonFastAPI

How does it compare?

lightricks/ltx-desktoptrekhleb/js-image-carverlingyichen-ai/jadeai
Stars1,5831,5961,619
LanguageTypeScriptTypeScriptTypeScript
Setup difficultyhardeasymoderate
Complexity4/52/52/5
Audiencevibe coderdevelopergeneral

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · hard Time to first run · 1h+

Local generation needs an NVIDIA GPU with 16GB+ VRAM and over 160GB of free disk space for model weights, otherwise an LTX API key is required.

You can use, modify, and distribute this software freely, including for commercial purposes, as long as you follow the Apache 2.0 license's attribution and notice requirements, downloaded AI model weights may have separate license terms.

So what is it?

LTX Desktop is a free desktop app from Lightricks for generating videos using the company's LTX AI models. It supports turning a text description into a video, turning a single image into a video, turning audio into a video, and editing an existing video generation, along with a built in video editor interface for arranging clips on a timeline. How the app generates video depends on your computer. On Windows or Linux with a supported NVIDIA graphics card that has at least 16 gigabytes of video memory, it can download the model and run generation entirely on your own machine. On Mac computers, or on Windows and Linux machines without a strong enough NVIDIA card, it instead relies on Lightricks' cloud API to generate videos, which requires a free account and an API key, though the video generation itself through the API is a paid service. Running fully locally on a supported machine also needs a large amount of free disk space, since the model weights themselves are large, plus a reasonable amount of system memory. Even in local mode, you still need to set up how text prompts get converted for the model, either using the free cloud based text encoding through an API key, which is recommended because it is faster and uses less memory, or downloading an additional local text encoder to avoid using the API at all. There are also two optional integrations: one with fal.ai for a specific image generation feature, and one with Google's Gemini for AI suggested prompt improvements, both of which only send data externally if you choose to enable them. Under the hood, the app is split into a React and TypeScript interface, an Electron layer that handles the desktop app shell and file operations, and a Python backend using FastAPI that manages model downloads and runs the actual generation. The app collects minimal anonymous usage statistics by default, which can be turned off in settings, and it is released under the Apache 2.0 license, though the downloaded AI model weights themselves may carry separate license terms.

Copy-paste prompts

Prompt 1
Help me figure out whether my computer can run LTX Desktop locally or if I need to use the API mode.
Prompt 2
Walk me through getting a free LTX API key and setting up text encoding.
Prompt 3
Explain the difference between local generation mode and API-only mode in LTX Desktop.
Prompt 4
Show me how to generate a video from a single image using LTX Desktop.

Frequently asked questions

What is ltx-desktop?

LTX Desktop is a free desktop app for generating videos from text, images, or audio using Lightricks's LTX AI models, running locally on strong NVIDIA GPUs or via a cloud API otherwise.

What language is ltx-desktop written in?

Mainly TypeScript. The stack also includes TypeScript, React, Electron.

What license does ltx-desktop use?

You can use, modify, and distribute this software freely, including for commercial purposes, as long as you follow the Apache 2.0 license's attribution and notice requirements, downloaded AI model weights may have separate license terms.

How hard is ltx-desktop to set up?

Setup difficulty is rated hard, with roughly 1h+ to a first successful run.

Who is ltx-desktop for?

Mainly vibe coder.

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