Model Briefing

Seedance 2.5

Seedance 2.5 is a strong all-around video model when you want cinematic motion, optional audio, and clips as long as 30 seconds.

Launch information

Last updated: 2026-08-16

Launched by: ByteDance Seed Team

Seedance 2.5 is ByteDance Seed Team's latest video model, with longer clips, native audio, and first/last-frame image-to-video.


At a glance

Speed: Medium

Quality tier: High

Audio support: Native

Cost tier: Balanced

Duration range: 4s to 30s

Resolution range: 480p to 720p


Best for

  • - Cinematic text-to-video up to 30 seconds
  • - First and last frame image-to-video
  • - Multi-image reference-to-video

Technical profile

Durations: 4 to 30 seconds

Aspect ratios: auto, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16

Resolution: 480p, 720p

Seedance 2.5 — AI Video Model | Speed, Quality & Examples | Spectoria