LTX 2
Open-source AI video engine with native 4K outputGenerate 4K video with synced audio, free tier available
Highlights
What you can do with it
- Generate 4K footage for a visual effects sequence
- Produce animation and motion graphics for an advertisement
- Create marketing and social video content at volume
How to use it
- 1 Visit the LTX 2 site and register; the free tier needs no credit card.
- 2 Open the video generation page.
- 3 Choose text-to-video, or image-to-video when available.
- 4 Set aspect ratio, duration, and quality.
- 5 Enter your prompt and click generate.
- 6 Preview the result and adjust the parameters if needed.
Who it is for
Pros
- Native 4K with synchronized audio in one pass
- Open source with a documented API
- Free tier to test before committing
Limitations
- 4K generation is demanding on hardware or credits
- Some features such as image-to-video are not live yet
- A new engine, so output quality and limits are still moving
What LTX 2 is
LTX 2 is an AI video generation engine that produces native 4K video with synchronized audio. It is built on open-source principles, so developers can access the source code for customization and contribution, and it follows an API-first design with REST and WebSocket interfaces for integration into existing tools. It supports text-to-video generation, with image-to-video announced, and it exposes controls for aspect ratio, duration, and quality. A free tier is available without a credit card, alongside enterprise support services.
Generating with synchronized audio in the same pass is the technical claim that matters, because most video models produce silent footage that then needs a separate audio step. Native 4K output is the other one, since upscaling after generation loses detail. The open-source and API-first posture suggests the intended users are teams embedding generation into a pipeline rather than people clicking a web form.
What you can do with it
- Generate native 4K video from a text prompt
- Control aspect ratio, duration, and quality settings
- Integrate generation into an existing pipeline through the API
- Use the open-source code for customization
- Produce footage for effects, animation, and marketing work
Who it is for
- Studios and post-production teams that need 4K material
- Independent creators who want open-source flexibility
- Developers building video generation into a product
- Marketing teams producing social and advertising content
What to watch out for
Some announced features, including image-to-video, are not live yet, so confirm what is available before you plan a workflow around them. Generating 4K video is demanding, so expect real compute cost or credit consumption even where the entry tier is free, and long jobs will take time. As a new engine, output quality, generation times, and limits are still moving, and results will need review and often editing before they are usable. Check the license terms for commercial use, since open source does not automatically mean unrestricted, and keep local copies of anything you generate.
FAQ
What resolution does LTX 2 output?
Native 4K video.
Is it open source?
Yes, it is built on open-source principles with source access for developers.
Does the free tier need a card?
No, the free tier is available without a credit card.
Why it is free
What the official page says： free tier
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.
