Seedance 1.5 Pro is a professional AI video model by ByteDance released in the end of December 2025 with speech-synchronized audio. That means dialogue, effects, music, and motion stay locked from the first frame. The result feels cinematic and polished.
It supports video up to 1080p with smooth frame rates and fast enough speeds for pro workflows.
The model puts realism and control first. Mouth movement lines up clean with speech. Sound effects land right when actions happen. Emotional timing stays intact. Lip sync holds up at the millisecond level, even with several people talking in different languages, even dialects. Dialogue feels natural across regions.
Camera control feels film focused. You get pans, tilts, zooms, dollies, and orbit style moves. Character identity stays stable across scenes. Faces, clothes, and style don’t drift. Backgrounds stay consistent while subjects move, cutting down on flicker or warping you often see elsewhere.
Visually, motion feels intentional. Actions have rhythm. Facial expressions show small emotional shifts. Scenes stay cohesive across cuts. The output feels cinematic, not choppy or fake.
On the technical side, the model runs on a large dual branch diffusion transformer setup.
If you'd like to access this model, you can explore the following possibilities:
