MODELS · VIDEO · LIGHTRICKS
LTX-2.3 Fast.
Speed-optimized LTX-2.3 variant: text-to-video and image-to-video with native synced audio, up to 4K and 20-second clips.
Free to start · 100+ models on one account · cancel anytime
About LTX-2.3 Fast
LTX-2.3 Fast is Lightricks' speed- and cost-optimized variant of LTX-2.3, built for rapid iteration rather than a single hero render. It runs in two modes: type a text prompt to generate video from scratch, or upload a starting frame image to animate it into motion, both with native synchronized audio generated in the same pass, on by default, so sound arrives built into the render with no separate audio step. Output resolution runs from 1080p up to full 4K, in landscape or portrait, at 24, 25, 48, or 50 fps. At 1080p with standard frame rates, clips can run as long as 20 seconds, well past the standard LTX-2.3's 6-to-10-second cap, while 1440p and 4K renders stay in that same 6-to-10-second range. It's suited to draft passes, storyboarding, and high-volume creative work where iteration speed and cost per clip matter more than squeezing out a fraction more fidelity.
- Text to video
- Image to video
- Audio to video
How to use LTX-2.3 Fast on getvivix
Create a free getvivix account — no card required.
Choose LTX-2.3 Fast from the model list and set your options.
Enter your prompt or upload your input, hit generate, then download in full quality.
LTX-2.3 Fast — frequently asked
LTX-2.3 Fast is one of 100+ AI models available on getvivix. LTX-2.3 Fast is Lightricks' speed- and cost-optimized variant of LTX-2.3, built for rapid iteration rather than a single hero render. It runs in two modes: type a text prompt to generate video from scratch, or upload a starting frame image to animate it into motion, both with native synchronized audio generated in the same pass, on by default, so sound arrives built into the render with no separate audio step. Output resolution runs from 1080p up to full 4K, in landscape or portrait, at 24, 25, 48, or 50 fps. At 1080p with standard frame rates, clips can run as long as 20 seconds, well past the standard LTX-2.3's 6-to-10-second cap, while 1440p and 4K renders stay in that same 6-to-10-second range. It's suited to draft passes, storyboarding, and high-volume creative work where iteration speed and cost per clip matter more than squeezing out a fraction more fidelity.
Sign in to getvivix and open the Studio, pick LTX-2.3 Fast from the model list, enter your prompt (or upload your input), and generate — then download the result in full quality.
Yes — getvivix has a free tier, so you can try LTX-2.3 Fast without a card. Sign up and start generating right away, alongside 100+ other AI models on one account.
LTX-2.3 Fast supports text to video, image to video, audio to video. It runs on getvivix alongside 100+ other frontier AI models, all from one account.