Choose a model using the kind of shot you need to deliver. A character exchange, a product rotation and a room-scale camera move place different demands on generation.
This is a practical comparison method for Seedance and MiniMax in JMovie. It contains no benchmark results and makes no claim that one model is the overall winner. You will need to run and review your own attempts.
Write the acceptance criteria first
Take one real brief and name the details that must survive. For a five-second bottle shot, that might be the cap shape, a stable base, a slow camera move and enough empty space for approved copy.
Separate required details from preferences. If the bottle visibly changes shape, attractive lighting should not compensate for that failure. Decide this before viewing the results.
Use a compact review sheet:
| Check | Acceptance question |
|---|---|
| Subject | Does the product or character remain recognizably correct throughout? |
| Action | Does the requested action happen, in the intended order? |
| Camera | Does the movement preserve useful framing? |
| Continuity | Do position, contact and screen direction hold between frames? |
| Sound | If required, are the words, speaker and timing usable? |
| Edit | Is there a continuous section that fits the planned cut? |
Describe any failure beside the score. “Cap grows wider near the end” is more useful for the next attempt than “quality: 6.”
Separate a shared brief from a tuned attempt
For the first comparison, keep the brief, permitted references, target duration and acceptance criteria the same. Use an input combination both selected modes support. Record any setting you cannot match.
Then, if useful, run a second comparison that allows model-specific adjustments. Give each model the same attempt budget and document those adjustments. Keep these results separate from the shared-brief comparison so readers can see what was changed.
Do not assume the same numeric seed creates a matching sample across different models. Record seeds when available for reproducibility within the relevant workflow.
Set a budget and keep every result
Choose an attempt limit before generating. For a small exploratory comparison, you could permit two initial attempts and one revision per model. This is an example budget, not enough evidence for a general ranking.
Save failed tasks as well as completed videos. Record the full model identifier, mode, settings, references, prompt, timestamp, displayed quote and final charge when available.
Avoid showing only the best output without disclosing how many attempts preceded it. A selected clip answers whether a result was possible; the full attempt record helps explain how often it was usable in your exercise.
Review without the model label
Where practical, give the outputs neutral names and review them before looking up which model made each one. Watch the whole clip, then inspect the critical moments at a consistent playback size.
Have another reviewer apply the same acceptance criteria if the decision matters to a production. Record disagreements rather than turning them into an unexplained average. Some may reveal that the brief itself needs a clearer requirement.
Compare cost and time for accepted material
Add the charges for all attempts in the comparison, including relevant failed attempts and additional processing. Divide by the seconds you actually accepted for the edit.
If no seconds were usable, report “no accepted output”; the cost-per-usable-second value is undefined. Keep elapsed waiting time separate from hands-on editing and review time.
The resulting decision should name a job and its evidence: which model and mode you would use for this shot, what failed, how many attempts were needed and what you spent. Repeat the exercise with another shot type before broadening that conclusion.
The H3 product-shot exercise provides a starting brief. The character-consistency guide gives you a different set of details to test.