Developer details pipeline turning three photos into a 9-second AI video clip

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The author launched Spin That Coupe Like What, a paid one-off service that swaps three uploaded solo photos into a 9-second, 9:16 trend clip while keeping the original audio and omitting a watermark. Rather than generating video from a text prompt, the product performs a character-replacement edit using the source clip as a video reference and the photos as ordered image references. The generation runs on Higgsfield's alibaba/wan-3.0 reference-to-video model, where image order determines which performer is replaced and the prompt limits changes to faces, hair and clothing. The post also covers operational lessons such as billing that rises with requested resolution, payment gating on execution contracts, and avoiding duplicate submissions after ambiguous timeouts.

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