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Ltx 2.3 Quality

All audio to video models

Generate high-quality video with audio from audio, text and images using LTX-2.3 and custom LoRA

Inference$ Commercial useFrom 1 credit per run

About Ltx 2.3 Quality

Generate high-quality video with audio from audio, text and images using LTX-2.3 and custom LoRA

audio-to-videolora

Pricing

A run with the default settings costs 1 credits. The exact cost updates in the playground as you change settings, and you're only charged when you press Run. Failed runs are refunded automatically.

Inputs

prompttextarearequired

The prompt to guide the audio-driven video generation.

audio_urlfilerequired

The URL of the audio track that drives generation.

image_urlfile

Optional URL of an image to use as the first frame. When omitted, generation runs from text and audio only.

match_audio_lengthbooleandefault: true

When enabled, derives the number of frames from the audio duration and frames_per_second. When disabled, uses num_frames.

num_framesintegerdefault: 121

The number of frames to generate.

resolutionselectdefault: "auto"

Final output size. 'auto' matches the input image aspect ratio when image_url is provided; otherwise it uses a landscape fallback.

Options: auto

frames_per_secondnumberdefault: 24

Frames per second of the generated video.

num_inference_stepsintegerdefault: 15

Number of inference steps. Defaults to 15 and can be increased up to 30.

guidance_scalenumberdefault: 1

Classifier-free guidance scale. The default is tuned for fast, high-quality generation.

generate_audiobooleandefault: true

Whether to include audio in the returned video. When disabled, the final MP4 is returned without an audio track.

image_strengthnumberdefault: 0.7

Conditioning strength for the optional first frame. 1.0 keeps the image more strictly; lower values give the model more freedom.

negative_prompttextareadefault: "color distortion, overexposure, static, blurry details, subtitles, style, artwork, painting, frame, still, dim overall tone, worst quality, low quality, JPEG compression artifacts, ugly, mutilated, extra fingers, poorly drawn hands, poorly drawn face, deformed, disfigured, malformed limbs, fused fingers, motionless frame, cluttered background, three legs, crowded background, walking backwards"

The negative prompt to steer generation away from.

seedinteger

Random seed for reproducibility. If None, a random seed is chosen.

enable_prompt_expansionbooleandefault: true

Whether to enable prompt expansion.

enable_safety_checkerbooleandefault: true

Whether to enable the safety checker.

video_qualityselectdefault: "high"

The quality preset of the generated video.

Options: low, medium, high

video_write_modeselectdefault: "balanced"

The write mode of the generated video.

Options: fast, balanced, small

sync_modebooleandefault: false

If True, the media is returned as a data URI inline in the response. Useful for short-lived requests and tests.

lorasjsonrequired

Up to 3 LoRAs to apply on top of LTX-2.3. Each path is downloaded through the registry SSRF-safe downloader before it is loaded. Max size: 3 GB per LoRA.

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