ByteDance: Seedance 1.5 Pro · fastrouter

Seedance 1.5 Pro is an advanced, joint audio-video AI generation model from ByteDance Seed, designed to create high-fidelity, cinematic, 4–12 second clips with synchronized audio, dialogue, and sound effects in a single pass. Utilizing a dual-branch diffusion transformer (DB-DiT), it specializes in realistic human motion, emotional nuance, and precise lip-sync for storytelling, advertising, and short-form content.

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All ByteDance Seed models at every provider

Price, $ $0.092 / second

Context 400 000

Max output 4 096

Accepts images, text

Last checked 04.11.2026 12:00:14 UTC

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