The technology behind Wan 2.7
How the model works, based on public documentation and sourced evidence.
Wan 2.7 is the latest generation of Alibaba's Wan video and image models, announced on April 7, 2026. The video lineup covers four jobs: text-to-video, image-to-video, reference-to-video and instruction-based video editing. All video variants output 720P or 1080P at 30fps, with clips from 2 to 15 seconds (2 to 10 seconds for editing).
The headline change is that audio is generated together with the picture, not layered on afterward. The model produces speech, music, and ambient sound synced to the scene, or you can supply your own audio file (WAV or MP3, 2 to 30 seconds) to drive the performance. Multi-shot stories are now directed in plain prompt language with per-shot descriptions, and Alibaba says the model keeps up to five characters consistent across shots, each with their own voice, plus dialogue editing that preserves lip sync.
The companion Wan 2.7 image model adds an official thinking mode, on by default for text-to-image, where the model reasons about the prompt before rendering; Alibaba's docs state it improves output quality at the cost of longer generation time. The image model accepts up to 9 reference images, and a separate pro tier renders text-to-image up to 4K.
Two things creators should know about the fine print. Alibaba has not published a technical report or architecture details for 2.7, and unlike Wan 2.1 and 2.2, which shipped open weights under Apache 2.0, no 2.7 weights appear on the official Wan GitHub as of mid 2026, so access is API and platform only. On provenance, the API offers an optional visible "AI Generated" watermark in the corner of outputs, but it defaults to off.
On Vidney, Wan 2.7 runs text to video and image to video from a first frame at any whole second from 2 to 15, at 720p or 1080p, and every clip comes back with sound. Text to video takes five aspect ratios and follows shots written into the prompt; image to video keeps the shape of the picture. The same page runs the standard Wan 2.7 image model for text to image and for image to image with one reference picture. First and last frame, reference to video, video editing and your own soundtrack are not offered here.