//LTX Models
How can we help?
Find what you need to get started with LTX
//Try LTX-2.3
//Get started
*You may need a commercial license if your company generates $10M+ in annual revenue. Learn more
//Build and learn
//Explore Topics
LTX Model
//FAQs
What is LTX-2.3?
LTX-2.3 is our latest video generation model — sharper detail, native portrait output, better prompt adherence, and cleaner audio. It supports 1080p to 4K at cinematic frame rates (24/48 fps), and it's available via the LTX API, open weights, or locally through LTX Desktop.
Where do I start if I just want to try it?
The fastest way is the LTX Playground — free to use, no setup required. If you want to run it locally, grab LTX Desktop. For API integration, the quickstart guide will get you generating video in minutes.
What can I build with LTX Models?
LTX supports text-to-video, image-to-video, audio-to-video, retake, and extend — all via a clean REST API. Teams use it to build AI-powered video products, automate post-production workflows, create content platforms, and embed generation directly into existing pipelines. It's designed to integrate into real production systems, not just demos. See the full API documentation to get started.
What's the difference between Fast and Pro?
Fast is optimized for speed and cost — ideal for rapid iteration, storyboarding, and prototyping. Pro delivers higher fidelity and motion stability for final renders, and it's required for audio-to-video, retake, and extend. Start with Fast to find your composition, switch to Pro for the final output. See the full model comparison.
Can I fine-tune or customize the model?
Yes. LTX Trainer is the official open-source training framework for LTX. It lets you train LoRAs on your own characters, styles, IP, or workflows — with flexible conditioning modes built to fit your pipeline. You can run it locally or on your own infrastructure using the open weights.
Can I run LTX on my own infrastructure?
Yes. LTX model weights are open and available on Hugging Face and GitHub for self-hosted and on-prem deployments. This makes LTX suitable for environments with strict data privacy, security, or compliance requirements. For managed access without the infrastructure overhead, use the LTX API instead.
Is LTX free to use?
The open weights are free under the LTX Model License for most uses. If your company generates over $10M in annual revenue, a commercial license is required — contact our team to get set up. API usage is billed separately based on output video duration and resolution.