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Wan 3.0 vs Wan 2.7: I Opened Alibaba's Own Demo Files. Three Specs Everyone Copied Are Wrong.

Blog post from Atlas Cloud

Post Details
Company
Date Published
Author
Atlas Cloud
Word Count
3,810
Company Posts That Month
160
Language
English
Hacker News Points
-
Post removed?
No
Summary

Wan 3.0, released in public beta by Alibaba in August 2026, expands video generation chiefly through 30-second single-pass outputs, support for up to 20 reference items, and new inputs including documents and web pages, while Wan 2.7 remains a production-oriented option with 15-second text/image-to-video limits, 10-second reference and editing limits, and broader third-party API availability. The comparison challenges widely repeated claims that Wan 3.0 offers native 4K or open weights: its published tiers top out at 1080P and its weights are unavailable, whereas Wan 2.7 can offer 1080P and 1440P super-resolution through some platforms. Wan 3.0 is designed around timestamped, multi-shot scripts that can combine generated audio, dialogue, music, and long narrative sequences, while Wan 2.7 requires prompts and story concepts to be compressed into shorter clips and cannot reliably create a seamless 30-second continuation. The source argues that Wan 3.0’s principal practical advantages are longer runtime, more complex reference-based consistency, and richer source materials, but notes beta-only access, unresolved commercial terms, and limitations in audio quality and text accuracy; Wan 2.7 remains more accessible for current hosted workflows, with pricing that varies by resolution and platform.

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