LTX Video Review (2026)
LTX Video is the open-source speed king: it generates faster than the clip plays back, costs nothing to run, and has become the engine behind a wave of real-time creative tools.
LTX Video
We cover this tool editorially — this button takes you straight to the official site.
Scores & specs
| Max resolution | Up to 1080P |
| Max clip length | Typically 5–10s |
| Native audio | Native (recent releases) |
| Languages | English-first prompts |
| Free tier | Open weights — free to run locally |
| Starting price | Free (open source) |
Key features
- LTXV-13B open model with real-time inference
- Synchronized audio in recent releases
- Image-to-video and video extension
- First-class ComfyUI integration
Best for
Anyone who wants the fastest open-source generation on their own hardware
Pros & Cons
Pros
- Blazing fast — real-time generation speeds on consumer GPUs
- Open weights with an active community and ComfyUI support
- Recent releases add synchronized native audio
- Zero cost if you already own a GPU
Cons
- Realism trails the arena leaders (Veo, HappyHorse, Kling)
- Best results need prompt discipline and good workflows
- Long clips require chaining generations
In depth
Lightricks’ LTX Video family made its name on speed — real-time generation on consumer hardware, something no other model in this guide matches. The 13B open checkpoint brought a serious quality jump, and recent releases added synchronized audio and image-to-video, making it a complete open-source toolkit.
It will not out-realize Veo or HappyHorse on a hero shot, but for iteration speed, batch experiments, and building your own pipelines, LTX is the tool the open-source community reaches for first.
Pricing
Free open weights (LTXV-13B and family) · hosted options via LTX Studio and third-party clouds
Our verdict
Frequently asked questions
Is LTX Video free?
Yes — Open weights — free to run locally. Paid plans start at Free (open source).
Who is LTX Video best for?
Anyone who wants the fastest open-source generation on their own hardware.
LTX Video
We cover this tool editorially — this button takes you straight to the official site.
More tools to compare
HappyHorse 1.0
HappyHorse 1.0, Alibaba’s dark-horse video model, went anonymous-to-#1 on the Artificial Analysis arena in twenty days. It is the realism and narrative leader of late 2026 — at a price nobody else comes close to.
Runway is the professional’s pick when you need to direct the shot, not just prompt it. Its control surface and Gen-4.5 model make it the benchmark for cinematic AI video.
Kling delivers near-flagship quality at a fraction of the price, with a free tier that outperforms what was paid software two years ago. The value pick of 2026.