LTX-2.3
Introducing LTX-2.3 — a major leap in quality and speed for AI video generation. LTX-2.3 is now the default model across the API, available in two variants:
- LTX-2.3 Pro (
ltx-2-3-pro) — best-in-class quality, supports all endpoints including audio-to-video, retake, and extend. - LTX-2.3 Fast (
ltx-2-3-fast) — blazing fast generation, supports text-to-video and image-to-video.
What’s new
- Sharper fine details — new latent space with an updated VAE delivers noticeably crisper output.
- Cleaner audio — improved data filtering reduces background noise and artifacts.
- Stronger image-to-video — more natural motion, fewer static clips, and better visual consistency.
- Better prompt understanding — improved text connector architecture for closer adherence to complex prompts.
- Last-frame interpolation — provide a first and last frame to the image-to-video endpoint, and the model generates the video in between.
- Portrait video support — native 9:16 vertical video generation across all resolutions.
- 24/48 FPS — new frame rate options alongside the existing 25/50 FPS.
