Seedance 1.5 Pro

ByteDance · 2025-12

Seedance 1.5 Pro adds synchronized audio-video generation, multilingual lip-sync and sound effects to the Seedance line.

Bridge release between 1.0 and 2.0 that brings ByteDance level with Veo 3 and Sora 2 on native audio.

Date

2025-12

Lab

ByteDance

Kind

model

Access

closed API

Single source (Wikipedia) for 'December 2025' and features; not confirmed with ByteDance.

Sources

1. en.wikipedia.org/wiki/Seedance_2.0
2. seed.bytedance.com/en/seedance1_5_pro

This record was partly confirmed: some claims could not be checked on 6 October 2026. How we check

Related

• Seedance 1.0