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Mini toolsSeedance 1.5 Pro
By ByteDance
Seedance 1.5 pro is a foundational joint audio-video generation model from ByteDance's Seed team. Built on a dual-branch Diffusion Transformer with cross-modal joint modules, it creates 1080p videos plus synchronized speech, music and sound effects from text or image prompts. It offers precise multilingual lip-sync, autonomous camera scheduling, cinematic transitions and RLHF-tuned narrative coherence for professional content and ecommerce ads.
New
Video
Gen 4
Overview
Seedance 1.5 pro is ByteDance Seed's native audio-visual foundation model that jointly generates video and synchronized speech, music and effects, using a dual-branch diffusion transformer to deliver precise lip-sync, cinematic camera work and multilingual storytelling.
About ByteDance
ByteDance is a multinational technology company known for its content platforms, including TikTok and Douyin.
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Last updated: March 18, 2026
