Seedance 1.5 Pro

Seedance 1.5 Pro is ByteDance's closed-source text-to-video model (Dec 2025). It generates 1080p clips up to 12s with native audio, multilingual dialogue, and precise lip-sync. Prioritizing integrated audio-visual synchronization over speed, it excels at cinematic storytelling and ads requiring narrative coherence. Its dual-branch diffusion transformer architecture processes visual and audio data in parallel, ensuring synchronized speech and consistent character identity without manual keyframing. Generation takes 6-8 minutes, with pricing from 40 CU.