🎉 LTX 2.3 - Generate Video with Sync Audio, Up to 4K

LTX 2.3 AI Video Generator

Generate high-fidelity videos with synchronized audio using LTX 2.3 — up to 4K resolution, 50 FPS, and native portrait support. No downloads, no GPU required.

Examples:
What is LTX 2.3

LTX 2.3 Video Generator — Open-Source AI for Text-to-Video & Image-to-Video

Powered by the latest Lightricks DiT foundation model with synchronized audio, up to 4K output, and native portrait video support

LTX 2.3 is the newest open-source video generation model from Lightricks, built on a Diffusion Transformer (DiT) architecture. It generates synchronized video and audio in a single pass — delivering sharp textures, realistic motion, and cleaner sound than ever before. Our platform brings these capabilities to your browser so you can create with LTX 2.3 without installing anything or renting a GPU.

LTX 2.3 Video Generation Preview
Up to 4K resolution at 50 FPS
Synchronized audio generation
Native 9:16 portrait video
Getting Started

How to Generate Videos with LTX 2.3

Go from idea to finished clip in four steps — no technical background needed. Our LTX 2.3 video generator handles the heavy lifting.

1

Write Your Prompt

Type a natural-language description of the scene you picture — include details about camera movement, lighting, mood, and action. You can also upload a reference image for image-to-video generation with LTX 2.3.

2

Pick Your Settings

Choose your aspect ratio (landscape, portrait 9:16, square), clip length up to 20 seconds, and quality mode — Fast for quick iterations or Pro for production-grade LTX 2.3 output.

3

LTX 2.3 Generates Your Video

The LTX 2.3 DiT model processes your prompt and produces video with synchronized audio, realistic textures, and natural motion — all in one pass, without extra post-production.

4

Preview & Download

Watch the result right in your browser. Not quite right? Tweak your prompt and regenerate. When you're happy, download the video in high resolution for social media, ads, or client work.

Key Features

Why Creators Choose LTX 2.3 for Video Generation

LTX 2.3 packs a redesigned VAE, a 4x larger text connector, and native portrait support into an open-source package. Here's what that means for your next project.

Sharper Details & Realistic Textures with LTX 2.3

• Rebuilt latent space and updated VAE deliver noticeably crisper output — cleaner edges, finer hair and fabric textures, and more lifelike skin tones • Up to 4K resolution (3840×2160) at 24–50 FPS keeps every frame production-ready • The LTX 2.3 visual quality leap is especially visible in close-ups and high-res renders where older models fall apart

Smarter Prompt Understanding in LTX 2.3

• A 4x larger gated-attention text connector means LTX 2.3 actually follows your prompt — timing, spatial relationships, expression, and camera direction land where you tell them to • Complex multi-subject scenes resolve accurately instead of collapsing into visual soup • Text and lettering render more clearly inside generated video, useful for branded content

Image-to-Video That Actually Moves with LTX 2.3

• Drop in a photo and LTX 2.3 generates natural, fluid motion — less freezing, fewer 'Ken Burns' pans, and stronger visual consistency from the source frame • Ideal for turning product shots into demo clips, portfolio stills into showreels, or concept art into animated previews • Supports up to 20-second clips in a single generation with extend-video for longer sequences

Core Capabilities

LTX 2.3 Capabilities at a Glance

Lightricks released LTX 2.3 in March 2026 as a major quality upgrade to the LTX-Video family. It combines a redesigned VAE, a much bigger text encoder, native portrait orientation, and cleaner audio into one open-source DiT model. Our platform gives you full access to these LTX 2.3 capabilities through a simple web interface — no command line, no local setup.

LTX 2.3 Text-to-Video — From Words to Cinematic Clips

Describe a scene in plain English and LTX 2.3 renders it into a high-fidelity video clip with matching audio. The upgraded text connector catches subtle prompt details — camera angles, timing cues, emotional tone — that earlier models would ignore. Fast mode lets you iterate rapidly; Pro mode delivers production-quality output worth putting in front of a client.

Use Cases

Who's Using LTX 2.3 — And How

From solo TikTok creators to agency teams, LTX 2.3 is showing up in real production workflows. Here's how different creators are putting the model to work through our platform.

Short-Form & Social Media Creators

Vertical video is a first-class citizen in LTX 2.3 — native 9:16 support means your TikToks and Reels come out properly framed without awkward crops. Type a trending concept, pick portrait mode, and you've got a scroll-stopping clip with synchronized sound ready to upload. Creators on our platform regularly churn out 10–15 variations in a single session to A/B test hooks and thumbnails.

YouTube & Long-Form Video Producers

B-roll is usually the most time-consuming part of any YouTube video. With LTX 2.3 text-to-video, you describe the scene you need — an aerial city flyover, a product close-up, an abstract transition — and the model delivers footage that cuts seamlessly into your timeline. The 20-second single-pass generation saves you from stitching together short segments.

Educators & Course Creators

Explaining complex ideas is easier when you can show, not just tell. Educators use our LTX 2.3 video generator to create illustrative clips — molecular animations, historical scene recreations, concept visualizations — without hiring a motion graphics team. The synchronized audio generation adds narration-ready ambient tracks automatically.

E-Commerce & Product Marketing Teams

Turn flat product photos into dynamic demo videos with LTX 2.3 image-to-video. Upload a hero shot of your product and get a cinematic reveal with realistic lighting and motion — no studio, no photographer, no scheduling. Marketing teams on our platform use this for A/B testing ad creatives across Meta, Google Ads, and Amazon listings.

Indie Filmmakers & Animators

LTX 2.3 is especially popular for pre-visualization. Write your scene description, generate a rough cut, and show your crew or client exactly how a shot should play out — before committing any budget. The model's strong prompt adherence means camera angles, timing, and character placement translate reliably from script to screen.

Agencies & Freelance Creatives

Agency deadlines don't wait for render farms. Our LTX 2.3 video generator lets creative teams produce polished concept videos for pitches and client reviews in minutes instead of days. Fast mode for rapid exploration, Pro mode for final delivery — and the open-source backbone means no vendor lock-in on the underlying model.

What Creators Say

Real Feedback from Real LTX 2.3 Users

I switched from another AI video tool to try LTX 2.3 and the difference in texture quality is immediately obvious. Hair, fabric, water reflections — everything looks dramatically sharper. The 9:16 portrait mode is a lifesaver for my Reels workflow.

Rachel Liu, DTC Brand Founder

Rachel Liu

DTC Brand Founder

The synchronized audio sold me. I generated a 15-second product teaser with ambient music and sound effects already baked in — my client thought I'd hired a post-production house. LTX 2.3 just collapsed a 3-day process into 10 minutes.

Daniel Okoro, Creative Director, Nomad Studio

Daniel Okoro

Creative Director, Nomad Studio

B-roll used to be my biggest bottleneck as a solo YouTuber. Now I describe the shot I need, LTX 2.3 generates it in seconds, and it actually matches the tone of my edit. My average watch time went up since I started filling gaps with AI-generated footage.

Sophie Andersen, YouTube Creator, 820K subs

Sophie Andersen

YouTube Creator, 820K subs

I teach motion graphics and I've started introducing LTX 2.3 in my workshops. Students go from written concept to rough cut in minutes — it democratizes the pre-vis stage without dumbing down the creative process. The prompt adherence is noticeably better than what we had six months ago.

Prof. James Whitfield, Motion Design Instructor, ArtCenter

Prof. James Whitfield

Motion Design Instructor, ArtCenter

We manage social for a dozen restaurant clients. LTX 2.3 image-to-video turns a single food photo into a mouth-watering clip — steam rising, sauce dripping, the whole thing. Engagement on those posts doubled compared to static images.

Mia Torres, Social Media Manager

Mia Torres

Social Media Manager

I was skeptical about AI video until I ran my storyboard frames through the LTX 2.3 image-to-video pipeline. The motion is smooth, stays faithful to the source image, and there's no weird Ken Burns drift. It's now part of every pre-vis I do before shooting.

Kenji Nakamura, Freelance Filmmaker

Kenji Nakamura

Freelance Filmmaker

FAQ

Frequently Asked Questions About LTX 2.3











Your Next Video Starts with a Prompt. Try LTX 2.3 Free.

Type a scene, drop in a photo, or pick a template — and let LTX 2.3 handle the rest. Up to 4K, synchronized audio, native portrait mode. No credit card required.

LTX 2.3 AI Video Generation