Wan 3.0 AI Video Workflow: Prompt to Finished Clip, With Real Credit Costs

Wan 3.0 is the clip you reach for when the shot depends on motion: a camera move that has to feel operated, physics that have to land, a 20-second one-take that would break most models at the 8-second mark. It runs text-to-video, first-frame image-to-video, and first/last-frame interpolation, up to 30 seconds at 1080p, with native audio in the same pass. It is also one of the pricier composers on Moosky (tagged medium-high cost), and the reason people bail before their first generation is usually a credit surprise, not a quality surprise. This guide is the whole workflow, and the price of every step is on the table before you start.

All numbers below come from the composer's own pricing code in the Moosky repo. Credits are the platform's currency at a fixed 100 credits = $1 USD, bought in packages, no subscription.

What Wan 3.0 actually does (and what it's bad at)

The model path on Moosky is wan3.0-video via DashScope, exposed as two composers:

• Wan 3.0 (T2V / FFLF) — text-to-video, or image-to-video from a start frame, with an optional last frame to interpolate toward. This is the subject of this guide.
• Wan 3.0 (R2V) — reference-to-video: up to 10 reference images, 5 reference videos, and 5 standalone audio files for character, prop, style, and voice consistency. The T2V/FFLF path can't mix frames with reference media, so reference jobs belong there.

Documented strengths, straight from the composer's own guidance: first/last-frame control, motion and camera language, native output audio, and 30-second single-pass narrative and one-take camera choreography. It prefers 16–30 second clips for that long-form pacing, which is unusual — most video models tap out around 10 seconds.

Known limitations, so you don't discover them mid-project:

• Exact lip-sync to specific words is unreliable. Quoted dialogue is preserved verbatim, but audio texture is still maturing. If frame-accurate mouth movement is the deliverable, LTX remains the cheaper talking-head option.
• On-screen text is approximate. Don't build a shot around a readable headline, label, or logo.
• Last frame without a start frame is invalid. First/last-frame mode needs both.

The honest credit cost, before you click generate

Every run costs a 10-credit base plus a duration times resolution charge, rounded up per second. The composer shows the exact quote before anything runs, and failed runs are refunded. Here is the full grid, computed from the composer's pricing constants:

Credits, at 100 credits = $1. Three things worth internalizing:

1. The first-shown default is deliberately cheap. The composer opens at 480P, 5 seconds: 49 credits.
2. Resolution is the multiplier. 720P costs double 480P per second; 1080P costs double again. A 30-second 1080P one-take is 934 credits — a production decision, not a scratchpad run.
3. Duration is billed per second, so drafts are cheap and finals are not. The workflow below is built around that asymmetry. The audio toggle changes nothing in price — native audio costs the same on or off.

Step 1 — Open the composer and make the structural choices first

Open the Wan 3.0 composer and set resolution, duration, and orientation before writing a word of prompt. The composer prices against these choices live (landscape, portrait, and square variants exist at each tier), so you always know what a take costs while deciding whether it's worth taking. Draft at 480P.

Step 2 — Write the prompt in the model's own grammar

Wan 3.0 does no prompt expansion — whatever you write is the prompt, in plain natural language (English or Chinese, up to 20,000 characters). The composer's guidance defines three shapes depending on mode:

Text-to-video: entity + scene + motion, plus camera and sound. The official shape is subject + setting + motion + cinematic quality + camera, and the aesthetic-control terms (light source, shot size, camera angle, lens, movement) are where quality comes from.

The bow releases, the arrow leaves the frame right. Warm late-afternoon light, shallow depth of field, medium shot, camera static.

State physics in the motion slot rather than hoping a camera term carries it — Wan 3.0 is strong on cause-and-effect when you name it.

Start frame only (image-to-video): the image already defines entity, scene, and style. Your prompt is motion + camera — don't restate static appearance unless a detail must be preserved. Camera cues the model honors: "camera pushes in", "camera moves left", "fixed camera".

Start + last frame (FFLF): describe the transition from the first frame toward the last — expression, action, camera, lighting — while identity carries through. The official shape is a gradual expression change plus a camera push-in plus a lighting shift. This is the mode for before-and-after reveals and product loops that must land on a specific closing frame.

Sound is part of the prompt, not an afterthought: quoted lines plus emotion, tone, speed, and timbre. Two sentences prevent the most common surprises — write "No dialogue." if the draft has no speech (the model will otherwise invent lines), and "No background music." if you don't want it to score the clip itself.

If the clip has cuts, structure them: an overall description, then Shot 1 [0–3 s] ..., Shot 2 ... with timestamps. For one continuous take, write "Generate single shot." rather than inventing cuts the model will try to perform.

Step 3 — Draft at 480P and read the result like an editor

First pass at 480P: 49 credits at the 5-second default, 126 at 15 seconds. Judge four things, each with a one-line fix:

• The camera move isn't yours. You wrote "cinematic"; the model invented a move. Name the verb (push in, pan, truck, arc, tracking, static) and its speed, or keyframe it with a last frame.
• The physics broke. A collision or release that should happen didn't. Put it in the motion slot explicitly — "the bow releases, the arrow leaves the frame right" beats "action scene".
• It invented dialogue or music. Add the "No dialogue." / "No background music." sentence.
• The long take wandered. Past ~15 seconds a single generation can drift from the opening frame. Add a last frame to force a return, or cut the concept into two clips.

Iterate here until the take is 90% right. Every revision at 480P costs a few credits; the same revision at 1080P costs four times as much and teaches you nothing new.

Step 4 — Escalate only the accepted take

When a take is approved, re-run the same prompt and frames at 720P or 1080P. A 15-second 1080P hero clip is 472 credits; a 30-second 1080P one-take is 934. If a shot isn't worth 472 credits, it wasn't worth approving at 480P either. Failed runs refund automatically, so an escalation that hits a provider error costs nothing to retry. Clips export without watermarks by default (the watermark toggle exists but is off, and pricing is the same either way).

A worked example: the 12-second product reveal

1. Prepare a clean opening still and a clean closing still (your target final frame).
2. Open the Wan 3.0 composer, load both frames, set 480P and 12 seconds: 103 credits.
3. Prompt the transition: "The watch rotates slowly on the pedestal, light sweeping across the bezel; camera pushes in from three-quarter to macro. Soft room tone, no background music."
4. Retake twice at 480P until the sweep lands (309 credits total).
5. Re-render the accepted prompt at 1080P for the hero cut: 380 credits. Whole project: ~689 credits. Exploring at 1080P from the start would have cost 1,140.

When not to use Wan 3.0

The pricing punishes the wrong choice more than the quality does:

• Lip-sync-critical dialogue — LTX (cheaper talking-head option) or MiniMax H3 (lip sync baked into the pass).
• Reference-locked characters, props, or voice samples — the Wan 3.0 R2V composer, not this one.
• Budget iteration on short dialogue clips — MiniMax is the economical pick under 15 seconds.
• Heavy kinetic action — Seedance stays the premium alternate for fights and chases.

Still choosing between engines? The model-by-model rundown is in Best AI video tools in 2026, and the prompting vocabulary this workflow leans on is expanded in AI prompt video generator. If your shot starts from a photo rather than a prompt, the photo-to-video guide covers the FFLF keyframing pattern across models.

Frequently asked questions

How many credits does a Wan 3.0 video cost? 10 base plus a per-second tier that depends only on resolution and duration: 49 credits for the first-shown default (5s at 480P), 241 for a full 30s at 480P, 934 for a full 30s at 1080P. The composer quotes the exact number before dispatch, and failed runs are refunded.

What does a credit cost in dollars? 100 credits = $1, fixed, bought in packages — no subscription. The 49-credit draft is 49 cents of credits; the 934-credit 30-second 1080P clip is $9.34 of credits.

Why did my generation fail before anything rendered? The most common cause on this surface is a balance below the quote: dispatch is checked against your credits before the provider sees the job, so a thin balance stops a 1080P escalation that a 480P draft would have passed. Check the quote against your balance, or drop the resolution tier, before retrying.

Can I control the first and last frame of the same clip? Yes — that's FFLF: upload both frames and prompt the transition between them. A last frame without a start frame is rejected by the composer.

Does Wan 3.0 generate audio? Native output audio (voice, ambience, score) is on by default and costs the same whether it's on or off. Quoted dialogue is preserved word-exact; frame-accurate lip-sync is the documented weak point.

Is there a watermark? No. The watermark toggle exists for compliance when you want it, but it defaults to off and doesn't change the price.

What's the cheapest path to a good 30-second clip? Never explore at your deliverable tier. Draft at 480P (241 credits for a full 30 seconds), iterate until the motion and camera language hold, then pay the 1080P re-run (934) exactly once — for the take you already know works.

Try it with the price visible

The workflow only stays honest if you can see the number before you commit, and the Wan 3.0 composer quotes every generation up front: 49 credits for the first draft, up to 934 for the full 30-second 1080P version. The Wan 3.0 landing page has capability details; reference files belong in Wan 3.0 R2V.