Introducing Alibaba WAN 2.5 Video Extend on WaveSpeedAI
Introducing Alibaba WAN 2.5 Video-Extend on WaveSpeedAI
The landscape of AI video generation has reached a pivotal moment. Content creators, marketers, and production teams face a common challenge: transforming short clips into longer, polished videos without the jarring cuts, inconsistent motion, or misaligned audio that plague traditional editing workflows. Today, we’re excited to announce the availability of Alibaba WAN 2.5 Video-Extend on WaveSpeedAI—a specialized video extension model that seamlessly extends your clips while maintaining perfect visual and audio continuity.
What is Alibaba WAN 2.5 Video-Extend?
WAN 2.5 Video-Extend is a specialized endpoint built on Alibaba’s acclaimed WAN 2.5 foundation model. While the base WAN 2.5 model has gained recognition as one of only two AI models globally to support native audio-video synchronized generation (alongside Google’s Veo 3), the Video-Extend variant focuses specifically on length extension—taking your existing video clips and naturally expanding them to your desired duration.
Unlike traditional video extension approaches that rely on looping, frame interpolation, or simple repetition, WAN 2.5 Video-Extend uses advanced predictive modeling to generate entirely new frames that feel like a natural continuation of your source material. The model analyzes motion patterns, lighting conditions, and scene context to create extensions that are visually indistinguishable from the original footage.
Key Features
Seamless Extension Without Artifacts
The model eliminates the “AI flicker” and abrupt transitions that have plagued earlier video generation tools. Frame-to-frame coherence ensures motion flows naturally, lighting remains consistent, and characters maintain visual persistence throughout extended sequences.
Flexible Duration Control
Choose any target length from 3 to 10 seconds with full granularity—3, 4, 5, 6, 7, 8, 9, or 10 seconds are all supported. This flexibility allows you to match specific creative requirements, whether you’re extending a clip to fit a musical beat, dialogue timing, or platform-specific duration requirements.
One-Pass Audio-Video Synchronization
What sets WAN 2.5 apart from competitors is its ability to automatically align audio and visual elements in a single processing pass. Lip movements sync naturally with speech, and rhythm matches your audio cues without requiring manual post-production editing.
Custom Audio Support
Upload your own audio files—voice tracks, sound effects, or background music—in WAV or MP3 format (up to 15 MB, 3-30 seconds). The model will drive the video generation to match your audio cues. Alternatively, let the model generate ambient audio or leave the extension silent.
Multilingual Prompt Support
Generate extensions with prompts in both Chinese and English, with accurate lip-sync support for multilingual content. This proves particularly valuable for global enterprises creating localized video variations.
Resolution Options
Output at 480p, 720p, or 1080p to match your quality requirements and budget constraints.
Real-World Use Cases
Content Creators and Storytellers Extend scenes to match specific beats in your soundtrack, complete dialogue sequences, or add dramatic pauses. The seamless extension means you can focus on narrative timing rather than technical constraints.
Marketing and Advertising Teams Create multiple ad variations from a single master clip. Extend product shots to meet different platform requirements—15 seconds for Instagram, 30 seconds for YouTube pre-roll—without reshooting or compromising visual quality.
Corporate Training and Education Transform short instructional clips into complete learning segments. Extend demonstration videos to allow for fuller explanations without the expense of additional production time.
Global Localization Generate extended versions of corporate videos for different regional markets, with audio sync that handles various languages and dialects. This proves far more cost-effective than reshooting content for each locale.
Social Media Content Meet platform-specific duration requirements by extending clips naturally, ensuring your content performs optimally across TikTok, Instagram Reels, YouTube Shorts, and other platforms with varying length expectations.
Getting Started on WaveSpeedAI
Using WAN 2.5 Video-Extend on WaveSpeedAI is straightforward:
- Upload your base video clip to establish the source material
- Optionally add an audio file (WAV/MP3, up to 15 MB) to drive the extension
- Enter your prompt describing the intended motion, mood, or scene continuation
- Select your target duration (3-10 seconds)
- Choose your resolution (480p, 720p, or 1080p)
- Submit and receive your extended video in moments
For best results, start with high-quality input video to maximize motion consistency. Keep prompts concise but descriptive—include mood, motion direction, and scene intent. For initial testing, we recommend starting with 5-second extensions to find the right balance between cost and quality.
Pricing That Makes Sense
WAN 2.5 Video-Extend offers competitive, transparent pricing based on resolution and duration:
| Resolution | Price per Second | 3s Example | 5s Example | 10s Example |
|---|---|---|---|---|
| 480p | $0.05 | $0.15 | $0.25 | $0.50 |
| 720p | $0.10 | $0.30 | $0.50 | $1.00 |
| 1080p | $0.15 | $0.45 | $0.75 | $1.50 |
This pricing significantly undercuts alternatives while delivering comparable or superior quality—particularly in audio-video synchronization where competing models often fall short.
Why WaveSpeedAI?
Running WAN 2.5 Video-Extend on WaveSpeedAI gives you access to:
- Fast inference with optimized infrastructure for video generation workloads
- No cold starts ensuring consistent response times for production workflows
- Ready-to-use REST API for seamless integration into your existing pipelines
- Affordable pricing that scales with your usage
Start Extending Your Videos Today
AI video extension has matured from a novelty to a production-ready tool. WAN 2.5 Video-Extend represents the current state of the art in maintaining visual consistency, motion coherence, and—critically—audio-video synchronization during extension.
Whether you’re a solo creator looking to stretch clips for better storytelling impact, or an enterprise team producing localized content at scale, WAN 2.5 Video-Extend provides the quality and flexibility to transform how you approach video production.
Ready to extend your creative possibilities? Try Alibaba WAN 2.5 Video-Extend on WaveSpeedAI and experience seamless video extension with synchronized audio.
