---
id: "bytedance/seedance-1-5-pro"
also: ["bytedance/seedance-1-5-pro-20260320"]
context: 0
max_output: 0
input: ["text", "image"]
output: ["video"]
released: "2026-03-23"
api: ["/api/v1/videos"]
params: ["frequency_penalty"]
endpoints: 1
gateways: "openrouter (1)"
no_training: 1
trains: 0
retains_prompts: 1
---
# ByteDance: Seedance 1.5 Pro

ByteDance's next-generation audio-visual generation model with a 4.5B parameter Dual-Branch Diffusion Transformer architecture. Seedance 1.5 Pro generates video and audio simultaneously in a single unified pass — eliminating the timing...