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LTX 2.3

by Lightricks

Open-source audio-visual video. Lightricks' LTX 2.3 generates synced video and sound in one pass, on Morphic.

Text-to-videoImage-to-videoAudio-to-videoNative audio generation

LTX 2.3

by Lightricks

Key features

What makes LTX 2.3 stand out from other AI models

Technical specifications

Key specs and capabilities at a glance

Up to 4K

Resolution

Native vertical 1080×1920+

Up to 50 fps

Frame rate

Smooth motion ceiling

Up to 20s

Duration

Per-clip generation length

LTX-2 Community

License

Open weights, community license

Use cases

How creators and businesses use LTX 2.3 on Morphic

Vertical short-form video

Native 9:16 generation up to 1080×1920 is the right shape and resolution for TikTok, Instagram Reels, YouTube Shorts, and other vertical surfaces.

Music and audio-led content

Use audio-to-video mode to generate visuals that match a specific track, dialogue read, or sound design, the audio drives the timing.

Ad creative with native sound

Generate short ad clips with dialogue, ambient sound, and SFX in one pass, ready to publish without a separate audio mix.

Production iteration

Higher frame rate and resolution ceiling makes LTX 2.3 a fit for iterative creative work where output needs to hold up beyond rough cut.

Prompt examples

Open any of these to tweak and generate

Vertical short

Vertical close-up, hand pouring matcha into a ceramic cup, gentle morning light, soft pouring sound, 6 seconds, 9:16

Edit prompt
Audio-led

Generate a video to match this audio track, urban skate session at golden hour, vertical, energetic cuts implied by the rhythm

Edit prompt
Cinematic ad

Slow push-in on a leather sneaker on a wet city street, neon reflections, distant traffic sound, vertical 1080×1920

Edit prompt

FAQs

What is LTX 2.3?
LTX 2.3 is Lightricks' open-source audio-visual video generation model. It generates synchronized video and audio in a single pass, supports native vertical output up to 4K, and runs at up to 50 fps.
How is LTX 2.3 different from earlier LTX versions?
2.3 ships a rebuilt variational autoencoder, a quadrupled text encoder built on Gemma 3 12B, and a gated-attention text connector for better prompt adherence. Resolution, frame rate, and audio quality all step up over LTX-2.
Does LTX 2.3 support vertical video?
Yes, natively. The model generates 9:16 directly at full resolution rather than cropping a horizontal frame, which keeps detail and composition right for vertical-first surfaces.
What does audio-to-video do?
Feed in an audio clip and LTX 2.3 generates matching visuals timed to the audio. Useful for music-driven content, ads keyed to a track, or dialogue-led shorts where the audio sets the pacing.
How do I use LTX 2.3 on Morphic?
Open Copilot, describe the shot or attach an audio track, and pick LTX 2.3. For vertical short-form, audio-led content, or anything that benefits from native sound generation, LTX 2.3 is the right pick.
Is LTX 2.3 really open weights?
Yes. Lightricks publishes the weights on Hugging Face under the LTX-2 Community License. On Morphic you use the hosted version, no infrastructure to manage, but the underlying model is openly available for local or on-prem use.

Try LTX 2.3 on Morphic

Sign up for Morphic to start creating with LTX 2.3. No downloads, no setup, just describe what you want and generate.