Introducing LTX-2.3 Our most production-ready model yet. The fastest 4K video generation in the world with built-in native dialogue. Here’s what’s new 🧵 1/9
LTX-2.3 AI Video Generator
Lightricks LTX-2.3 is a 22B parameter DiT-based audio-video foundation model with a rebuilt VAE for sharper textures, faces, hair, and text rendering. Features a 4x larger text connector for superior prompt adherence, native 9:16 portrait mode up to 1080x1920, LoRA support with up to 3 custom adapters, and cleaner audio via HiFi-GAN vocoder. Generates 480p to 1080p videos from 5 to 20 seconds with synchronized audio.
Public
LTX-2.3 Text-to-Video Examples
Experience the next generation of AI video creation with LTX-2.3. Generate cinematic, high-fidelity videos from detailed text prompts with stunning visual quality and natural motion.
AI Video
Rainforest at Golden Hour
An aerial shot drifts over a dense rainforest at golden hour, with mist rising from the canopy and a waterfall cascading into a dark green pool.
Prompt
“A wide aerial shot slowly drifts over a dense rainforest at golden hour. Thick mist rises from the canopy as shafts of warm orange light pierce through the trees. A winding river reflects the fading sky below. The camera tilts down gradually, revealing a waterfall cascading into a dark green pool. Ambient sounds of water and distant birds fill the scene.”
LTX-2.3 Image-to-Video Examples
Transform static images into dynamic, high-quality videos with LTX-2.3. See how still photographs come alive with realistic motion, expressive characters, and cinematic camera work.
Input
Output
Competitive Cyclist
A side-tracking shot follows a competitive cyclist in a red, white and blue racing kit powering along a wet road at full speed. He is crouched low over the handlebars in an aggressive aero position, legs driving the pedals in a fast, powerful cadence. The camera tracks him at pace from the left, keeping him centered in frame. Trees and guardrails blur into streaks of green and grey behind him. Rain mist rises off the road surface. His jersey ripples in the wind. The sound of spinning wheels, fast breathing, and wet road noise fill the audio. The camera slowly pushes in toward his focused expression as he accelerates.
LTX-2.3 YouTube Videos
Watch demonstrations and tutorials of LTX-2.3, the 22B parameter open-source audio-video foundation model
- Introducing LTX Desktop: An Open Source Video Editor Powered by LTX-2.3 - LTX-2
- Run LTX 2.3 Video Generation AI Model Locally with ComfyUI - Easy Guide - Fahd Mirza
- LTX 2.3 in Comfy UI — Text to Video & Image to Video - AI Ninja
- LTX-2.3 In ComfyUI = AI Video Generation At 0 Credits Per Run - Nerdy Rodent
- LTX-2.3 ComfyUI Workflow Tutorial | Text-to-Video, Image-to-Video, Talking Avatar & Audio Generation - Vantage with AI
- LTX 2.3 Released - ComfyUI Workflow & A New Tool I Built To Run AI😃😃😃 - Benji’s AI Playground
LTX-2.3 YouTube Videos
Watch demonstrations and tutorials of LTX-2.3, the 22B parameter open-source audio-video foundation model
LTX-2.3 Popular Reviews on X
See what the AI community is saying about LTX-2.3, the 22B parameter open-source audio-video foundation model
Keyframes and structured control are now more deeply integrated. LTX-2.3 is trained with multi-task objectives from the pretraining stage, including image-to-video, retake, keyframes, and more. This makes transitions, controlled scene evolution, and multi-shot workflows more Show more
🚀 Today we’re releasing LTX-2.3 with open weights + training code, alongside the API, LTX Studio, and LTX-Desktop - a full-featured video editing app that runs on your local GPU. Audio+video generation just leveled up: quality + capabilities + tooling - all open-source. 🧵👇
Acaban de liberar LTX-2.3. Un modelo de video con IA que genera 4K + audio + lip-sync. 100% gratis y open-source. Puedes crear clips de hasta 20s desde tu propio PC. Te dejo el enlace en el comentario: (Si no, prueba lo último de Kling) x.com/ivnways/status…
Kling 3.0 Motion Control se actualiza por completo. Basado en la versión 2.6, ahora ofrece: - Consistencia facial impecable - Estabilidad desde múltiples ángulos - Eidelidad en secuencias largas - Reproducción fiel de emociones complejas
LTX 2.3 seems to be coming out soon. No models on Hugging Faces just yet, but soon I'm sure ~ ltx.io/model/ltx-2-3
LTX-2.3 releasing soon 😊 LTX-2.3 brings four major improvements over LTX-2. A redesigned VAE produces sharper fine details, more realistic textures, and cleaner edges. A new gated attention text connector means prompts are followed more closely – descriptions of timing, Show more
LTX-2.3 officially released! Wait, unreleased. 404. ComfyUI team: “Nah, we already support it.” github.com/Comfy-Org/Comf…
What is LTX-2.3?
Lightricks' 22B parameter DiT-based audio-video foundation model with rebuilt VAE and open-source weights
22BParameters
Up to 4KResolution
5-20sDuration
Apache 2.0License
A next-generation open-source model delivering sharper details, better prompt adherence, native portrait video, and cleaner synchronized audio under Apache 2.0 license.
22BParameters
Up to 4KResolution
5-20sDuration
Apache 2.0License
What is LTX-2.3?
Lightricks' 22B parameter DiT-based audio-video foundation model with rebuilt VAE and open-source weights
A next-generation open-source model delivering sharper details, better prompt adherence, native portrait video, and cleaner synchronized audio under Apache 2.0 license.
LTX-2.3 Features
Discover the powerful capabilities of Lightricks LTX-2.3 for next-generation video production
Rebuilt VAE Engine
Completely rebuilt Variational Autoencoder delivers dramatically sharper fine details including textures, faces, hair strands, text overlays, and crisp edges. A fundamental upgrade over LTX-2 for professional-quality output.
Enhanced Prompt Adherence
A 4x larger text connector ensures LTX-2.3 follows your prompts with significantly greater accuracy. Complex scene descriptions, specific actions, and detailed visual instructions are faithfully rendered in the generated video.
Native Portrait Video
First-class 9:16 vertical video support at up to 1080x1920 resolution, purpose-built for TikTok, Instagram Reels, and YouTube Shorts. No more cropping or letterboxing from landscape-only models.
Synchronized Audio-Video
Cleaner, higher-fidelity audio generation powered by a new HiFi-GAN vocoder. Produces contextually appropriate sound effects, ambient audio, and dialogue that naturally syncs with the visual content.
Custom LoRA Adapters
Apply up to 3 simultaneous LoRA adapters to customize style, character consistency, or motion patterns. Fine-tune outputs for brand-specific aesthetics or specialized creative workflows.
Multi-Resolution Output
Flexible resolution from 480p for rapid drafts up to 1080p for production-ready output, with upscaling support to 4K. Choose 24 or 48 FPS frame rates to match your project requirements.
Improved Image-to-Video
Significantly reduced Ken Burns effect and static freezing artifacts. Images are animated with genuine motion and dynamic camera work, producing natural movement that brings still images to life.
Open-Source Foundation
Released under Apache 2.0 license with full model weights and training code available. Build custom applications, fine-tune for specific use cases, or integrate directly into your production pipeline.
Frequently Asked Questions
Still have questions?
LTX-2.3 is a 22 billion parameter DiT-based audio-video foundation model by Lightricks, released on March 5, 2026. It features a completely rebuilt VAE for sharper textures, faces, hair, and text rendering, a 4x larger text connector for better prompt adherence, native 9:16 portrait support, LoRA adapter support, and a new HiFi-GAN vocoder for cleaner audio. It is open-source under Apache 2.0.
LTX-2.3 introduces several major upgrades: the VAE has been completely rebuilt for dramatically sharper fine details. The text connector is 4x larger, resulting in much better prompt adherence. Image-to-video generation has been improved with less Ken Burns effect and less freezing. Audio quality is cleaner thanks to a new HiFi-GAN vocoder. It also adds native 9:16 portrait video support and LoRA adapter support for customization.
LTX-2.3 generates videos from 480p up to 1080p natively, with upscaling support to 4K. It supports both landscape (16:9) and portrait (9:16) aspect ratios, with portrait mode supporting up to 1080x1920 resolution. Video duration ranges from 5 to 20 seconds, with frame rate options of 24 or 48 FPS.
LTX-2.3 supports up to 3 simultaneous LoRA (Low-Rank Adaptation) adapters that can be applied to customize the model's output. LoRAs can be used to maintain consistent character appearances, apply specific artistic styles, or control motion patterns. This allows for brand-specific customization and specialized creative workflows without retraining the full model.
LTX-2.3 generates synchronized audio-video content using a new HiFi-GAN vocoder that produces cleaner, higher-fidelity audio compared to LTX-2. The model generates contextually appropriate sound effects, ambient audio, and dialogue that naturally matches the visual content. Audio generation can be toggled on or off depending on your needs.
Yes, LTX-2.3 is released under the Apache 2.0 license, which is one of the most permissive open-source licenses available. The full model weights and training code are publicly accessible, allowing developers to build custom applications, fine-tune for specific use cases, or integrate the model directly into production pipelines for both personal and commercial use.
How to Use LTX-2.3 for Text-to-Video
Create stunning AI videos with synchronized audio in three simple steps
1
Select LTX-2.3 Text-to-Video Model2
Write Your Prompt and Configure Settings3
Generate and Download Your VideoNavigate to the video generation page and select the LTX-2.3 text-to-video model. Choose your preferred resolution (480p to 1080p), aspect ratio (16:9 landscape or 9:16 portrait), frame rate (24 or 48 FPS), and video duration (5-20 seconds). Optionally attach up to 3 LoRA adapters for custom styles.
How to Use LTX-2.3 for Image-to-Video
Transform still images into dynamic videos with improved motion in three simple steps
1
Select LTX-2.3 Image-to-Video Model and Upload Image2
Add Motion Prompt and Configure Settings3
Generate and Download Your VideoNavigate to the video generation page and select the LTX-2.3 image-to-video model. Upload a high-quality still image (JPG, PNG, or WEBP format). Choose your resolution (480p to 1080p), aspect ratio (16:9 or 9:16 portrait), frame rate (24 or 48 FPS), and duration (5-20 seconds). Optionally attach LoRA adapters for custom styles.
Flexible AI Pricing
Pay-as-you-go credits or subscription plans. No hidden fees, cancel anytime.
Annual billing with 50% discount