What is the LTX API and how do I get started?

Updated July 08, 2026 19:18

The LTX API gives developers direct access to LTX video generation. Use it to integrate text-to-video, image-to-video, and audio-to-video generation into your own products and workflows. Get started in the Developer Console.

LTX-2 model IDs (ltx-2-fast, ltx-2-pro) will stop being supported on August 15, 2026. Switch to ltx-2-3-fast or ltx-2-3-pro before then. From July 15, LTX-2 requests are automatically routed to LTX-2.3 and billed at LTX-2 rates. Find out more.

What is the LTX API?

An API lets your own software send requests directly to LTX and get visuals back — without any manual interaction. Your code sends a request describing what you want (a prompt, an image, an audio file), LTX processes it, and returns the generated output. It's how developers build LTX generation into their own apps, automate production workflows, or handle large volumes of content programmatically.

The API is hosted and run by LTX. You pay per second of video output. See API pricing for current rates, or talk to our team if you're evaluating at scale.

What the LTX API supports

Text-to-video — generate video from a text prompt
Image-to-video — animate a starting image
Audio-to-video — generate video synchronized to an audio track
Retake — regenerate a segment of an existing video
Extend — lengthen an existing video
Video-to-video HDR — upscale SDR video to HDR

The current model family is LTX-2.3, available in two tiers: ltx-2-3-fast for rapid iteration and ltx-2-3-pro for higher-fidelity output. See the full list of generation types and endpoints.

How to access the API

Go to the Developer Console and log in or create an account.
Add credits to your account.
Create an API key — you'll use this to authenticate your requests.
Follow the quick start guide in the developer docs to make your first request.

If you already have an LTX Studio account, you'll still need to register separately at console.ltx.video.

Can I test it before integrating?

Yes — the API Playground lets you experiment with prompts and settings before writing any code. You'll need API credits to generate in the Playground.

API billing vs. Studio plans

The LTX API is billed separately from LTX Studio subscriptions. Having a Studio plan doesn't include API access — you purchase API credits independently in the Developer Console. See Understanding LTX API pricing for details.