Ltx 2 19b Image To Video

Ltx 2 19b Image To Video

Playground

LTX-2 19b is the first DiT-based audio-video foundation model with synchronized audio and video, high fidelity, multiple performance modes, and production-ready outputs in one model. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

LTX-2 19B Image-to-Video with Audio

LTX-2 is the first DiT-based (Diffusion Transformer) audio-video foundation model, capable of generating synchronized audio and video from a reference image and text prompt. With 19 billion parameters, it animates your input image into a high-fidelity video clip with natural sound that matches the motion — no separate audio production needed.

Why Choose This?

• Image-conditioned video with audio Transforms a static image into a moving video with synchronized audio generated in a single pass.

• Preserves input composition Maintains the subject, framing, and lighting of your reference image while adding natural motion.

• High-fidelity output Leverages a 19B-parameter DiT architecture for detailed, temporally consistent video with minimal flickering.

• Flexible resolution Supports 480p, 720p, and 1080p outputs to balance quality and cost.

• Variable duration Generate clips from 5 to 20 seconds.

Parameters

Resolution Options

How to Use

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

Pricing

Billing Rules

• Base price: $0.08 (720p, 5 seconds)
• Resolution multiplier: 480p = 0.75×, 720p = 1×, 1080p = 1.5×
• Duration: Scales linearly (per 5 seconds)
• Total cost = duration × $0.08 × resolution_multiplier / 5

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.
• 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 19B Text-to-Video — Generate video with audio from text only, no input image required.
• Wan 2.5 I2V — Alternative image-to-video with the Wan ecosystem.
• Kling 2.6 I2V — Kuaishou’s latest image-to-video generation model.
• Veo 3.1 I2V — Google’s image-to-video model with high fidelity.

# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/ltx-2-19b/image-to-video" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "resolution": "720p",
    "duration": 5,
    "seed": -1
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"