---
title: 'HeyGen Avatar (Digital Twin)'
description: "HeyGen Avatar (Digital Twin) — generate a talking-avatar video from a script or an audio track. Both versions pick the avatar from HeyGen's stock catalog. A custom (cloned) voice ID works on Avatar IV only."
updated: 2026-09-19
---

# HeyGen Avatar (Digital Twin)

**Badge:** New  
**Node type:** `video:heygen_avatar4_digital_twin`  
**Category:** `video`

## Description

HeyGen Avatar (Digital Twin) — generate a talking-avatar video from a script or an audio track. Both versions pick the avatar from HeyGen's stock catalog. A custom (cloned) voice ID works on Avatar IV only.

## Pricing

- **Cost:** ~16 credits per seconds
- **Per-second rate:** The figure is the rate at a 5-second reference run. Our margin is progressive and steepest on the smallest runs, so a clip shorter than that can cost more per second, and a model priced with a flat multiplier is exact at every length. The charge is always computed from the real duration.

## Canvas ports

These appear as port handles on the left side of the node.

| ID          | Label                | Details            |
| ----------- | -------------------- | ------------------ |
| `prompt`    | **Prompt (v5 only)** | `TEXT` · multiline |
| `audio_url` | **Audio URL**        | `AUDIO`            |

## Sidebar config

These render as form fields in the right-side config panel when the node is selected.

| ID                  | Label                                                            | Details                                                                                                                                              |
| ------------------- | ---------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
| `model_version`     | **Model**                                                        | `TEXT` · options: `v5`, `v4`                                                                                                                         |
| `avatar`            | **Avatar (v5)**                                                  | `TEXT` · options: `Abigail Office Front`, `Abigail Office Side`, `Abigail Sofa Front`, `Abigail Sofa Side`, `Amelia Business Training Front 2`, +495 |
| `avatar_id`         | **Custom Avatar ID (needs your own HeyGen key — not supported)** | `TEXT`                                                                                                                                               |
| `character`         | **Avatar Name (v4 — blank = use Avatar above)**                  | `TEXT`                                                                                                                                               |
| `voice`             | **Voice**                                                        | `TEXT` · options: `Warm Pro Narrator`, `Chill Brian`, `Ivy`, `John Doe`, `Monika Sogam`, +97                                                         |
| `voice_id`          | **Custom Voice ID (v4 only — overrides Voice)**                  | `TEXT`                                                                                                                                               |
| `aspect_ratio`      | **Aspect Ratio**                                                 | `TEXT` · options: `16:9`, `9:16`, `1:1`, `4:5`, `5:4`, +1                                                                                            |
| `resolution`        | **Resolution**                                                   | `TEXT` · options: `360p`, `480p`, `540p`, `720p`, `1080p`, +1                                                                                        |
| `output_format`     | **Output Format (v5)**                                           | `TEXT` · options: `mp4`, `webm`                                                                                                                      |
| `fit`               | **Fit (v5)**                                                     | `TEXT` · options: `contain`, `cover`                                                                                                                 |
| `remove_background` | **Remove Background (v5)**                                       | `BOOLEAN`                                                                                                                                            |
| `background_type`   | **Background Type (v5)**                                         | `TEXT` · options: `color`, `image`                                                                                                                   |
| `background_value`  | **Background Value (v5)**                                        | `TEXT`                                                                                                                                               |
| `caption`           | **Caption SRT (v5)**                                             | `BOOLEAN`                                                                                                                                            |

## Outputs

| ID             | Label                      | Type    |
| -------------- | -------------------------- | ------- |
| `video`        | **Generated Video**        | `VIDEO` |
| `caption_file` | **Caption File (SRT, v5)** | `TEXT`  |

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_Auto-generated from the Wireflow node registry._

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Documentation index: fetch https://www.wireflow.ai/llms.txt for the full list of Wireflow docs.