A portrait animation fails when the person changes, even if the movement looks smooth. For MiniMax H3 Spicy versus Wan 3.0 Spicy, begin with the same authorised adult portrait and a small movement: one blink, a slight head turn, and a stationary camera. The first question is whether the face and clothing survive, not which model has the longer feature list.

Key TakeawaysCompare the same source photograph and descriptive motion prompt.Five seconds fits both i2v endpoints, but their resolution menus differ.Inspect intermediate frames for facial, hand, and wardrobe changes.A documented control is not evidence of better identity preservation.

Prepare a Portrait That Can Be Checked

Choose a clearly adult subject who has consented to the use, or a fictional adult. Keep the full face visible, avoid hair across the eyes, and use a simple background. A fully clothed fashion portrait is sufficient for this test; explicit content is neither necessary nor a promised output of MiniMax H3 Spicy.

Select a small set of visible identifiers before generating: eyebrow shape, jaw outline, an earring, a collar seam. For a portrait with hands in frame, record their resting position too. These provide concrete things to inspect instead of relying on whether the result broadly “looks like” the source.

Use a Shared Five-Second Brief

Siray's MiniMax H3 Spicy i2v specification accepts integer durations from five through fifteen seconds, with 768p or 2k. Its five documented fields are model, prompt, image, duration, and size. Do not add seed or aspect-ratio fields from another endpoint.

The Wan 3.0 Spicy i2v specification also accepts five seconds, requires aspect_ratio, and offers 480p, 720p, or 1080p. For the first pass, request H3 at 768p and Wan at 720p, then review both at the same display size without claiming their native resolutions match.

Set Wan's prompt_expansion_enable to false to disable its documented automatic expansion. H3 exposes no corresponding switch; that absence does not establish what happens internally. Leave Wan's optional end_image out of the first comparison so the test does not give only one candidate an additional reference.

Review the Face Before the Movement

Watch the whole clip, including the frames between the beginning and end. A face can return to the right appearance after changing halfway through. Likewise, a sleeve can briefly merge with a wrist. A selected thumbnail cannot establish that these problems are absent.

Which Model Should Be Tried First?

If the job needs an explicit end-image reference or prompt-expansion control, start with Wan because those controls are documented. If it is simply a short portrait motion, H3's smaller request surface is a reasonable first test. Neither recommendation is a quality ranking: this article has no generated comparison results.

After the first round, change one thing at a time, such as head movement or camera movement. Compare observed usable outputs and actual charges in the job records before making a budget decision. The H3 Spicy control guide covers the broader interface; this test is about whether a particular portrait survives animation.

Create your free Siray account and assess the same portrait on both endpoints before expanding the motion.

A Note on Compliance

Use only legal, consensual adult material involving verified adults aged 18 or older. Siray refuses CSAM and all other illegal content with zero tolerance. MiniMax H3 Spicy is not a promise of uncensored or explicit output, and moderation cannot be assumed disabled. Both models are third-party services accessed through Siray's API, not models self-hosted by Siray.