LTX-2.3 Launch: Fast Native 4K AI Video Generation in LTX Studio

Melvin Vivas · X video post · 2026-03-06 · 1:00 · 122 views · Open on X

Topics: Industry Trends & Job Market, AI Dev Tools & Productivity · Level: beginner

Summary

Melvin Vivas reshares the launch announcement for LTX-2.3, a video generation model now powering LTX Studio. The promo video says the model generates native 4K video with built-in dialogue and audio, and claims it is the fastest 4K model available. The model is aimed at production workflows rather than one-off clips. The video teaches no technique; it is mainly a product announcement that's useful for keeping up with generative video tools.

Key points

• LTX-2.3 is the newest LTX video model, described as 'the most production-ready model yet'.
• It generates native 4K video at industry-standard frame rates.
• It produces dialogue and audio natively, and the announcement says the audio is clearer than before.
• It supports portrait (vertical) video generation.
• Motion guidance uses a first frame and a last frame (keyframe conditioning).
• The announcement says LTX-2.3 is up to 5x faster than any other model, with sharper details and stronger motion. These are vendor claims, not independent benchmarks.
• LTX Studio presents itself as a full creative workflow 'from first frame to final delivery' that cuts down on revisions, not just a video generator.
• LTX-2.3 is available now in LTX Studio.

Resources mentioned

• LTX 2.3 · tool · huggingface.co · free
  A video generation model from LTX (Lightricks) that makes video from text or images, including start- and end-frame image-to-video, with audio, portrait output and 24/48 fps.
  Also in: Free Local AI Video Generation with LTX 2.3 in ComfyUI (Melvin Vivas on X · notes), Local Video Generation with LTX 2.3 on an RTX 3090 (Melvin Vivas on X · notes), AI Video Generation Locally with ComfyUI and LTX 2.3 (Melvin Vivas on X · notes), LTX 2.3 Image-to-Video Running Locally (Demo) (Melvin Vivas on X · notes) and 3 more
• LTX Studio · tool · ltx.studio · check price
  A browser-based AI video production platform that now runs on LTX-2.3 and covers the creative workflow from first frame to final delivery.
  Also in: Seedance 2.0 Video Model Now Available in LTX Studio (1080p) (Melvin Vivas on X · notes), Running the LTX 2.3 Open Video Model Locally with ComfyUI on an RTX 3090 (Melvin Vivas on X · notes), Local Image-to-Video with LTX 2.3 in ComfyUI and Z-Image (Melvin Vivas on X · notes)

Try this

• Try LTX-2.3 in LTX Studio, where the announcement says it is available now.