Most AI video tools bill you monthly and count your generations. There is now an open-source one that runs on your own machine, generates as many clips as you want, and costs nothing to run. Any image or a single line of text becomes a cinematic clip with sound. Setup takes about twenty minutes if your machine can handle it.
Most business owners making short-form content are paying a subscription for it. A few dollars a month here, thirty there, and a credit meter that runs dry three clips before the deadline.
Then a tool ships that does the same job on hardware you already own. It needs no login to a rendering server and charges nothing per clip. Your own computer makes the video, and it never leaves the machine.
That tool exists now. Here is what it does and what your machine needs to run it for free.
What This Actually Is
It is called LTX Desktop, built by Lightricks and released under the Apache-2.0 license. That license matters: it means the code is open, free to use, and nobody can pull it out from under you later.
You install it like any desktop app. It downloads a video model to your machine and runs the whole thing locally. Give it a photo or a sentence and it produces a short cinematic clip. It generates the sound with the video instead of bolting it on afterward.
It does more than one trick:
- Text to video. Type a scene, get a clip.
- Image to video. Feed it a still photo and it animates the shot.
- Audio to video. Drive the visuals from a sound.
- Retake. Re-generate part of a clip you already made instead of starting over.
- Text to image and image editing, so you can build the starting frame in the same app.
You control the camera, switch styles, and shape the scene. The model doing the work is LTX-2.3, a 22-billion-parameter model that lives on your disk after the first download.
One honest flag before you get excited: it is labeled Beta. The team says to expect breaking changes. Treat it as a serious tool you test, not a finished product you bet a client deadline on this week.
Is It Really Free?
Yes, when it runs on your own hardware. Local generation has no per-clip cost and no subscription. You make one video or five hundred for the same zero.
There is one fork worth understanding. If your computer cannot run the model locally, the app falls back to an API mode that generates in the cloud instead. The text-encoding part of that API is free. The actual video generation through the API is paid. So the "free and unlimited" promise is true for local generation and only for local generation. The rest of this article assumes you want the free path, and tells you exactly what your machine needs to take it.
| Path | What it costs | What it needs |
|---|---|---|
| Local generation | Free, unlimited | A supported GPU or Apple Silicon Mac |
| API mode | Free text encoding, paid generation | Any machine plus an internet connection and an API key |
Get It Running: Three Steps
The install is short. The hardware check is the part that decides your experience, so read your fork before you download.
Step one. Go to the project's GitHub releases page and download the latest installer for your operating system.
Step two. Install and launch it like any normal app. First launch runs a setup that pulls the model down. The model is large, so this is the slow part. Clear the disk space first.
Step three. Give it a photo or a one-line prompt and generate your first clip. Done. The video is made on your machine.
Which experience you get depends on your hardware. Find your case below.
If You Have a Windows or Linux PC With an NVIDIA GPU
This is the ideal path. You want an NVIDIA GPU with CUDA support and at least 16GB of VRAM. More is better. Pair that with 16GB of system RAM, though 32GB is the comfortable number, and clear 160GB of free disk space for the model and its working files. Windows 10 or 11, or Ubuntu 22.04 and up. On this setup everything runs local and free.
If You Are on an Apple Silicon Mac
M-series Macs are supported. You need macOS 13 Ventura or newer and at least 15GB of free RAM, meaning free at the moment you run it, not total installed. Keep plenty of disk clear for the model. Note that Intel Macs do not qualify for local generation and stay in the paid API mode.
If Your Machine Cannot Run It
If you do not have 16GB of VRAM or a recent Mac, the app still opens, but it runs in API mode and video generation there is paid per clip. Be honest with yourself here. If this describes your machine, the free-and-unlimited pitch does not apply to you, and you are better off knowing that before you spend an evening on the download. The tool is genuinely free only when the model runs on your own silicon.
Write Prompts That Come Out Cinematic
The tool is only as good as the shot you describe. A vague prompt gives you a vague clip. Structure the request the way a director frames a shot and the output tightens up fast.
Keep this template somewhere you can paste it. Fill the brackets and drop it into the prompt box.
Copy the Shot Prompt
Copy this.
A [SHOT TYPE, e.g. slow push-in close-up] of [SUBJECT, e.g. a ceramic coffee cup steaming on a wooden counter]. Setting: [WHERE, e.g. a quiet café at golden hour, warm light from the left]. Camera: [MOVEMENT, e.g. the camera drifts slowly forward, shallow depth of field]. Mood: [FEELING, e.g. calm, premium, unhurried]. Style: [LOOK, e.g. cinematic, soft film grain, muted warm color grade].
Two rules make the difference. Name the camera movement instead of leaving it still, because motion is what makes a clip feel shot rather than generated. And describe the light, because light is what separates a cinematic frame from a flat one.
If the first clip is wrong, do not scrap it. Use the Retake feature and change one thing at a time. Tell it what to fix in plain words: make the camera move slower, warm up the light, hold on the subject longer. One change per pass gets you there faster than rewriting the whole prompt.
What To Actually Make With It
The point is not to make art. The point is to stop paying for the b-roll and product motion your business already needs. Some of the jobs it covers:
- Product shots that move. Feed it a photo of what you sell and get a rotating, lit, cinematic clip for an ad or a listing.
- Background b-roll. The atmospheric filler behind your talking-head reels, made to order instead of licensed from a stock library.
- Ad variations. Generate ten versions of the same concept and test which one holds attention, without a credit meter punishing you for iterating.
- Social clips at volume. If you post daily, this replaces the monthly tool you currently ration.
- Concept mockups. Show a client the moving version of an idea before anyone books a real shoot.
The value is the unlimited part. When each generation is free, you can be wasteful, and being wasteful is how you find the one clip that works.
The Limits You Should Know Before You Download
No tool is free of trade-offs. Here are the real ones, so you decide with your eyes open.
- It is Beta. The developers say to expect breaking changes. Do not put it on the critical path of a paid client deliverable until you have run it enough to trust it.
- The hardware bar is real. Without roughly 16GB of VRAM or a recent Apple Silicon Mac, you are pushed into the paid API mode, and the free promise evaporates.
- It is a heavy install. Budget 160GB of free disk and a slow first download while the model comes down. This is not a two-minute app.
- Local generation uses your own machine's power. Long sessions will spin your fans and warm your laptop. That is the cost of not paying a cloud bill.
- Clips are short. This makes cinematic moments and b-roll, not three-minute videos. Plan to stitch several clips in an editor for anything longer.
None of these are dealbreakers if you have the hardware and treat it as the beta it is. They are dealbreakers if you are on a light laptop expecting free unlimited cloud video. Know which one you are.
If You Only Do One Thing
Check your VRAM. That single number decides whether this tool is free for you or not. On Windows, open Task Manager, go to Performance, click your GPU, and read the dedicated memory. On a Mac, confirm you are on Apple Silicon with 15GB of RAM free.
If the number clears the bar, download it tonight and make one clip from a photo you already have. Twenty minutes, most of it waiting on the model to download. If you never touch it again, you spent one evening and learned exactly what your own machine can do without a subscription. If it works, you just retired a monthly bill.