Wan 3.0 vs Wan 2.7: Duration, Inputs, Editing, and Cost

Choose Wan 3.0 for 16–30-second generation, 480P drafts, larger reference sets, or document and web-page input. Choose Wan 2.7 when the job is explicit video editing or when you need its separate reference-to-video controls. Wan 3.0 is not a simple quality bump: it combines more input types into one reference model, while Wan 2.7 exposes a dedicated edit mode.^[1][2]

Wan 3.0 vs Wan 2.7 at a glance

The right choice follows the request shape, not the version number.

The 15-second boundary is the clearest difference

Wan 2.7 text-to-video and image-to-video top out at 15 seconds. Wan 3.0 doubles that ceiling to 30 seconds.^[1][2]

That matters for a continuous scene. A 24-second performance is one Wan 3.0 task, but at least two Wan 2.7 tasks and an edit. The extra join can change a face, room layout, voice, wardrobe, or camera speed.

It matters less for commercials cut into five-second shots. Short shot lists already have intentional edits, and a failed five-second insert is cheaper to replace than the last five seconds of a 30-second take. Longer is useful only when continuity is useful.

Wan 3.0 accepts material that 2.7 does not

Wan 3.0 can use a DOCX, XLSX, PPTX, PDF, text/Markdown file, Apple iWork document, or a public login-free page as reference input. Documents may be up to 100 MB and 50 pages.^[1]

This makes it suitable for jobs such as:

• turning a product brief into a concept clip;
• using a public product page as context for a video;
• providing a presentation or report without manually converting every page to images;
• combining a document with visual and audio references in one request.

Wan 2.7 expects media and text fields. The application has to extract or summarize a document before submitting the video request.

Document support should not be mistaken for a deterministic slide renderer. Wan 3.0 interprets the material as a reference. It may choose scenes, reorder ideas, or omit details. If every number and on-screen sentence must match, extract a script and storyboard first.

Wan 2.7 still has the clearer editing path

Wan 2.7 exposes a dedicated video editing mode: send a source through video_url, describe the change, and choose whether the soundtrack is handled automatically or the original is kept. It can process the full source with duration: 0, subject to the mode's rules.^[2]

Wan 3.0 accepts reference video, but reference is not a promise to preserve every source frame while changing one object. It interprets the clip alongside the prompt and other assets. For “re-render this source video” rather than “use this clip as guidance,” Wan 2.7 is the more explicit API contract.

Reference limits change how much preprocessing you need

Wan 3.0 accepts up to ten reference images, five reference video clips, and five reference audio clips. Wan 2.7 supports up to five subject images and five reference clips, with reference voices tied to subjects.^[1][2]

The higher image limit helps with a character plus wardrobe, product, room, lighting, and prop references. More references are not automatically better. Contradictory angles or identities can make the target ambiguous. Start with the smallest set that defines the shot and add a reference only when it supplies information missing from the others.

Cost is not comparable without the mode

Current public reAPI rates are:

For plain text/image generation, Wan 2.7 is slightly cheaper at the shared resolutions. Wan 3.0 adds a 480P iteration tier and the 30-second ceiling.

Reference and editing work changes the comparison. Wan 2.7 can include probed source duration in the billable seconds for input-billed modes, while Wan 3.0's current public pricing multiplies its rate by output duration. Check the input mode rather than multiplying both models by the same duration and assuming the result is equivalent.^[1][2]

A simple decision rule

Use Wan 3.0 when any of these is true:

• the shot must be longer than 15 seconds;
• the input is a document or public page;
• a cheap 480P iteration pass helps;
• the job needs more reference images;
• one multimodal reference request is easier than building preprocessing.

Use Wan 2.7 when:

• the job is specifically source-video editing;
• 15 seconds is enough;
• its per-subject reference voice structure matches the scene;
• the lower 1080P text/image generation rate matters more than 3.0's new inputs.

Do not migrate by changing only the model id

Applications moving a 2.7 workflow to 3.0 should treat it as a new request schema. Wan 2.7 separates subject references, reference voices, and source-video editing fields. Wan 3.0 combines reference media under a different family and adds file_url, link_url, and an explicit generation_type option.

Build a per-model validator and migrate one mode at a time. Start with prompt-only generation, then first/last frame, then mixed references. Keep 2.7 editing requests on the old model until a 3.0 reference test proves it meets the same acceptance criteria. A successful HTTP response does not mean the semantic operation stayed the same.

Also set resolution and duration explicitly during migration. Wan 3.0 adds 480P and defaults to 1080P; its -1 duration behavior reserves at the 30-second ceiling on reAPI. Silent default changes are a poor way to discover a new model's cost profile.

Both are available through their public model and documentation pages: Wan 3.0, Wan 2.7 Video, Wan 3.0 docs, and Wan 2.7 docs.

References

1. reAPI Wan 3.0 API documentation, accessed August 23, 2026.
2. reAPI Wan 2.7 Video API documentation, accessed August 23, 2026.
3. Alibaba Cloud, “Wan 3.0: 30-Second AI Video Generation from Any Input”, 2026.