Over the past few years, AI video generation has advanced through multiple waves of innovation — from smoother motion to sharper visual fidelity. Now, Wan 2.5 represents the next major leap: delivering truly native audio-video synchronization that brings scenes to life with both sound and realism.

The arrival of Veo 3 marked an important phase for the industry, introducing synchronized A/V output. But without sound, can a video really offer a complete “video experience”?

In this article, we’ll take an in-depth look at the model’s core capabilities, common use cases, and real-world performance to understand how this next-generation technology elevates content from merely “watchable” to truly “conversational and comprehensible.”

What makes Wan 2.5 stand out?

More affordable

Although Google recently announced price cuts, Veo 3 still remains costly overall.

In contrast, Wan 2.5 is leaner and more budget‑friendly, offering creators more options while significantly reducing production costs.

One‑pass outputs with end‑to‑end A/V sync

You no longer need to record separate voiceovers or manually align lips for silent AI videos. Simply provide a clear, well-structured prompt to generate a complete video with synchronized audio, voiceover, and lip-sync in one step — making the entire process faster and easier.

Multilingual friendly

When prompts are written in Chinese or other less common languages, the model reliably produces A/V-synchronized videos. In contrast, Veo 3 often displays “unknown language” when the input contains mixed or non-English text.

Longer duration & more video size options

• Length: Veo 3 maxes out at about 8 seconds; Wan 2.5 supports up to 10 seconds, providing more space for storytelling.
• Formats: Veo 3 offers only one aspect ratio option, while Wan 2.5 supports three different video sizes to accommodate popular platforms and scenarios, enhancing publishing flexibility.

Voice‑driven reference & original sound video

Veo 3 does not support audio reference, limiting creators to silent clips or system‑generated sound.

In contrast, the new model enables direct input of voice, sound effects, and background music, guiding video generation through precise audio cues.

Key Features

One-prompt A/V sync from start to finish

A clear, well-structured prompt now becomes a complete talking video — with voiceover, music, and precise lip-sync all seamlessly integrated. No separate voice recording, no manual timeline adjustments, and no need for third-party tools. With Wan 2.5, it all happens in one pass, one file — faster production and more consistent publishing for every team.

Prompt: A young man sits still on a subway train, surrounded by blurred figures moving rapidly. [Close-up] His eyes, barely blinking, intensify the sense of loneliness.

Smooth & stable motion at any scale

Whether it’s subtle facial micro-expressions or dynamic, full-body gestures, motion stays natural and steady. A wide dynamic range prevents jitter, stutter, and uncanny artifacts, ensuring polished results from start to finish. Even longer clips remain stable — Wan 2.5 is built for reliability.

Multilingual & accent-friendly by design

Prompts in Chinese or other less common languages remain perfectly A/V-synchronized, maintaining clear alignment and accurate pronunciation. Unlike Veo 3, which may display “unknown language” on mixed-language inputs, Wan 2.5 makes multilingual production seamless for cross-border campaigns and global classrooms.

Audio-driven reference & original-sound video

While Veo 3 lacks true audio reference, you can upload a voice track, sound effects, or background music to guide rhythm, pacing, and lip-sync with precision. By following your audio cues, Wan 2.5 delivers perfectly timed visuals and expressive performances — no silent placeholders, no rigid system sounds.

Designed For

Marketing teams

Create product demos or tutorials quickly — avoid lengthy coordination for shoots or on‑camera hosts. Wan 2.5 enables quick creation of professional videos with realistic digital presenters, ensuring fast delivery, consistent style, and controlled costs.

Global enterprises

When expanding content across countries or regions, use Wan 2.5 to create multilingual videos with accurate lip‑sync and subtitles. Simplify localization and effectively reach global audiences!

Storytellers & YouTubers

Creators can craft immersive, emotionally engaging narrative videos with Wan 2.5 while maintaining both release schedules and content quality. This effectively boosts productivity for audience growth and retention.

Corporate training teams

For internal training or communications, go beyond static documents. Wan 2.5 creates high‑definition, professional videos that keep employees and partners focused on key points, greatly improving communication efficiency.