AI Video Extender
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Upload MP4/WEBM/AVI/MOV/WMV videos up to 50MB
Sample Video
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AI Video Extender: Seamlessly Extend Video Length & Duration | Sora 2
Unlock the full potential of your footage with Sora 2's AI Video Extender, a cutting-edge tool built on the advanced architecture of the WAN 2.5 model. This feature allows you to seamlessly extend video duration from 3 to 10 seconds without any abrupt cuts or looping artifacts. Whether you need to lengthen a short clip for social media or expand a cinematic scene, our AI Video Extender faithfully inherits the original motion flow, lighting, and quality (up to 1080p). It intelligently predicts and generates new frames that blend perfectly with your base video, ensuring a cohesive and natural viewing experience.
How to Use AI Video Extender for Perfect Continuity
Extend your video clips while maintaining perfect audio-visual sync in three simple steps:
Upload Base Video & Audio
Start by uploading the video clip you want to extend. You can also upload a custom audio file (.wav/.mp3) or let the AI generate matching audio. The AI Video Extender analyzes the core parameters of your footage to ensure the extension matches the original style.
Customize Duration & Resolution
Select your desired target length (ranging from 3s to 10s) and choose your output resolution (480p, 720p, or 1080p). You can also input text prompts in English or Chinese to guide the specific content of the extended segment.
Generate Seamless Extension
Click generate. The AI processes the request using one-pass A/V sync technology, automatically aligning lip movements and background audio. Within moments, download a longer, fluid video that looks like it was shot in a single take.
AI Video Extender & Features FAQ
Everything you need to know about extending video duration and maintaining consistency with Sora 2.
What is the Sora 2 AI Video Extender?
The Sora 2 AI Video Extender is a specialized tool powered by WAN 2.5 technology that adds length-extension capabilities to your existing videos. It allows creators to extend video clips naturally, ensuring consistent lighting, motion, and character identity without the 'glitches' common in older models.
How long can I extend my video?
You have flexible duration control. You can choose to extend your video to any target length between 3 seconds and 10 seconds (e.g., 3s, 5s, 8s, 10s), giving you precise control over your storytelling pacing.
Does it support Audio and Lip-Sync?
Yes. One of the key features is 'One-pass A/V sync.' The AI Video Extender automatically aligns audio and mouth movements, ensuring natural speech and rhythm. You can upload your own voice track or use AI-generated audio.
What resolutions are supported for extended videos?
We support high-definition outputs to match professional needs. You can generate extended videos in 480p, 720p, and fully clear 1080p resolution.
Who is this AI Video Extender designed for?
It is ideal for marketing teams needing multiple ad variations from a single clip, content creators who need to fit videos to a specific music beat, and corporate trainers looking to expand short clips into complete learning segments without reshooting.