# Which inputs and settings does HeyGen Avatar IV support?

Required references: Image, Audio. Reference inputs: Image, Audio. Maximum references: 2. Output options: 720p - 1080p. Aspect ratios: 16:9 - 9:16 - 1:1. Duration: 1-120 seconds.

Canonical URL: https://www.subclip.app/faq/model-detail-avatar-iv-inputs

Last modified: 2026-10-21

Required references: Image, Audio. Reference inputs: Image, Audio. Maximum references: 2. Output options: 720p - 1080p. Aspect ratios: 16:9 - 9:16 - 1:1. Duration: 1-120 seconds.

## How to use HeyGen Avatar IV

1. Choose HeyGen Avatar IV and add a suitable portrait.

2. Provide the speech audio and supported motion instructions.

3. Generate the talking clip, then check lip sync and timing.

[HeyGen Avatar IV in Subclip](/ai-models/avatar-iv)

## Back to FAQ

- [Back to FAQ](https://www.subclip.app/faq)