Seedance 1.5

Seedance 1.5 is an AI video generation model launched by ByteDance, released in the fourth quarter of 2025, with a major upgrade in audio-video synchronization capabilities.

The model supports 480p/720p/1080p resolutions, video durations of 5-10 seconds, and both text and image input modalities. It is capable of synthesizing matching audio content while generating video.