Seedance 2.5 · Portrait Videos
ModelArk Portrait / Faces

Create Portrait Videos with
Dreamina Seedance Models

Doc 2608626 · docs.byteplus.com

Seedance 2.5 and Seedance 2.0 series models do not support directly uploading reference images/videos that contain real human faces. Use one of the three solutions below.

Solutions Overview

SolutionIntroduction
Trust model outputs as input assets The original face-containing outputs generated by certain models under this account can be used as input assets to call Seedance 2.5 and Seedance 2.0 series models again for secondary creation, without triggering input moderation blocking.
Use preset digital characters The platform presets a digital character library, providing creators with free, compliant, and diverse portrait assets. Suitable for scenarios that require real-human-style faces but do not need to specify a particular person, and that pursue zero compliance risk and fast creation.
Use authorized real-person assets Supports using authorized real-person portrait assets for video generation.

Solution 1: Use Trusted Model Outputs as Input Assets

Seedance 2.5 and Seedance 2.0 series models do not support directly uploading reference images/videos that contain real human faces. To make it convenient for creators' secondary creation needs in face-containing scenarios, the ModelArk platform trusts face-containing outputs generated by the following models. You can use the original face-containing outputs generated by the following models under this account within the past 30 days as input assets to call Seedance 2.5 and Seedance 2.0 series models again for secondary creation.

Scope and validity period

Trusted output scopeEffective timeValidity period
Face-containing videos generated by Seedance 2.5 and the Seedance 2.0 series Starting March 11, 2026 30 days from output generation time
Last-frame images corresponding to face-containing videos generated by Seedance 2.5 and the Seedance 2.0 series Starting March 11, 2026 30 days from output generation time
Outputs older than 30 days from their generation time are no longer trusted and cannot be used as input for face-containing secondary creation.
Portrait video — trusted output example 1
Portrait video — trusted output example 2

Solution 2: Use Preset Digital Characters

The platform presets a digital character library with free, compliant, and diverse portrait assets.

Best for: scenarios that require real-human-style faces but do not need to specify a particular person. Zero compliance risk, fast creation.
Digital character library sample
Digital character example

Solution 3: Use Authorized Real-Person Assets

Supports using authorized real-person portrait assets for video generation. This solution requires explicit authorization from the person whose likeness is used, in accordance with platform terms and applicable law.

Use this path only when you have verifiable authorization for the real-person likeness. The platform may require proof of authorization during the moderation process.

Fuente: docs.byteplus.com/en/docs/ModelArk/2608626