LTX-2.3 Image-to-Video

LTX-2.3 is a significant update to the LTX-2 model, featuring improved audio and visual quality with enhanced prompt adherence. As a DiT-based (Diffusion Transformer) audio-video foundation model, it animates your input image into a high-fidelity video with synchronized audio generated in a single pass.

Why Choose This?

Improved quality Enhanced audio and visual quality compared to LTX-2, with better prompt adherence and more coherent outputs.
Image-conditioned video with audio Transforms a static image into a moving video with synchronized audio in a single model pass.
Preserves input composition Maintains the subject, framing, and lighting of your reference image while adding natural motion.
DiT-based architecture Built on Diffusion Transformer technology for detailed, temporally consistent video generation.
Flexible resolution Supports 480p, 720p, and 1080p outputs to balance quality and cost.
Variable duration Generate clips from 5 to 20 seconds.

Parameters

Parameter	Required	Description
image	Yes	Reference image to animate (JPG or PNG)
prompt	Yes	Text description of motion, action, and audio cues
resolution	No	Output resolution: 480p, 720p (default), or 1080p
duration	No	Video length in seconds (5-20)
seed	No	Random seed for reproducibility (-1 for random)

Resolution Options

Resolution	Best For
480p	Fast previews, iteration, lowest cost
720p	Balanced quality and cost (default)
1080p	Final delivery, maximum detail

How to Use

Upload your image — the reference image that defines subject, composition, and lighting.
Write your prompt — describe the motion, camera movement, and audio cues.
Select resolution — 480p for iteration, 720p for balance, 1080p for final output.
Set duration — 5-20 seconds based on your content needs.
Run — submit and download the animated video with synchronized audio.

Pricing

Resolution	5s	10s	15s	20s
480p	$0.10	$0.20	$0.30	$0.40
720p	$0.15	$0.30	$0.45	$0.60
1080p	$0.20	$0.40	$0.60	$0.80

Best Use Cases

Product Animation — Bring product photos to life with subtle motion and ambient audio.
Portrait Animation — Animate headshots and portraits with natural movement.
Social Media — Create engaging animated content from static images.
Marketing — Transform key visuals into video ads with cohesive sound.
Storytelling — Animate storyboard frames or concept art.

Pro Tips

Audio is automatic — sound is generated based on visual motion and prompt context.
Describe specific audio when needed (e.g., "rain", "jazz", "crowd noise").
Use high-quality, sharp, well-exposed images for best results.
Keep motion prompts simple — one clear action per prompt yields better results.
Iterate at 480p to dial in motion, then render at higher resolution for final output.
Use fixed seed when comparing prompt variations to isolate changes.

Notes

Maximum video duration is 20 seconds.
Width & height must be divisible by 32, frame count must be divisible by 8 + 1.
The aspect ratio of output video is influenced by your input image.
For longer content, generate multiple clips and edit together.

Related Models

LTX-2.3 Text-to-Video — Generate video with audio from text only.
LTX-2 19B Image-to-Video — Previous generation model.

LTX-2.3 is a DiT-based audio-video foundation model designed to generate synchronized video and audio within a single model, with improved audio and visual quality as well as enhanced prompt adherence. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

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