Ltx 2 Video Extend

Ltx 2 Video Extend

Playground

LTX Video 2.0 extends existing videos by generating new content at the start or end. Supports prompt-guided extension up to 20 seconds. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

LTX-2 Video Extend

LTX-2 Video Extend seamlessly extends existing videos by generating additional frames based on your text description. Upload a video clip and describe the continuation — the model generates smooth, coherent footage that naturally extends your original content by up to 20 seconds.

Why Choose This?

• Seamless extension Generates new frames that naturally continue the motion and style of your original video.

• Flexible duration Extend videos by 1 to 20 seconds based on your needs.

• Prompt-guided generation Describe how the video should continue for precise control over the extension.

• Per-second billing Simple, transparent pricing at $0.10 per second of extension.

• Prompt Enhancer Built-in tool to automatically improve your continuation descriptions.

Parameters

How to Use

1. Upload your video — provide the source video you want to extend.
2. Write your prompt (optional) — describe how the video should continue (motion, action, scene changes).
3. Set duration — choose how many seconds to extend (1–20 seconds).
4. Use Prompt Enhancer (optional) — click to refine your description.
5. Run — submit and download your extended video.

Pricing

Billing Rules

• Rate: $0.10 per second
• Minimum: 1 second
• Maximum: 20 seconds

Best Use Cases

• Content Extension — Extend short clips into longer sequences for storytelling.
• Scene Continuation — Continue scenes beyond their original capture.
• Social Media — Transform brief moments into full-length videos.
• Film & Production — Extend establishing shots or B-roll footage.
• Creative Projects — Add additional motion and narrative to existing clips.

Pro Tips

• Use detailed prompts describing how the motion, camera, and scene should continue.
• Include character actions, camera movements, and environmental details in your prompt.
• For best results, use source videos with clear motion direction that can be naturally continued.
• Start with shorter extensions to test results before generating longer clips.

Notes

• Video is required; prompt is optional but recommended for better results.
• Duration range: 1–20 seconds.
• Ensure uploaded video URLs are publicly accessible.

Related Models

• Wan 2.6 Video Extend — Alternative video extension model.

# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/ltx-2/video-extend" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "duration": 5
}'

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