Generate a video from a prompt with HeyGen AI Agent

HeyGen Try it →Watch full video →Simon Crowe · Mar 2026

Demo summary

The user demonstrates how to use the HeyGen AI Agent by entering a text prompt to automatically generate a multi-scene promotional video with a public avatar, script, and visuals.

Step-by-step

Enter a detailed text prompt describing your video idea and specific scenes
Click Auto to open the public avatar library
Filter the library by age, gender, or ethnicity to select an avatar
Set the video length and orientation in the settings
Select Generate from the drop-down menu
Click the arrow to build the scenes, script, and visuals

Options

Filter avatars by age, gender, or ethnicity
Use the chat and plan feature to see a scene-by-scene breakdown before generating
Switch between landscape and portrait orientation

Tips

Be very specific in your prompt; more direction generally leads to better results
Filter the avatar library to avoid scrolling through the entire public collection
Choose an avatar that matches the specific vibe of your content (e.g., 'youtuby' for a YouTube course)

Highlights

“honestly, it's the fastest way to create inside of HeyGen”

All demos from “How to Use HeyGen in 2026 (Step-by-Step Beginner Tutorial)”

2:122:01Generate a video from a prompt with HeyGen AI AgentCurrentThe user demonstrates how to use the HeyGen AI Agent by entering a text prompt to automatically generate a multi-scene promotional video with a public avatar, script, and visuals.HeyGen· Script To Video AI Generator
4:201:24Editing scripts and captions in HeyGen AI StudioThe creator walks through the HeyGen AI Studio editor, showing how to manually edit the generated script, adjust delivery style, and customize caption fonts and colors.HeyGen· AI Avatar Video Generator
5:440:39Generate AI backgrounds with Nano Banana in HeyGenThe video shows how to use the built-in Nano Banana AI image model within HeyGen to generate a custom studio background from a text description.HeyGen· AI Background Generator
6:260:49Adjusting avatar movement with HeyGen Motion EngineThe user demonstrates the Motion Engine settings in HeyGen, selecting different movement styles like 'excited' or 'welcoming' to change the avatar's physical energy.HeyGen· AI Avatar Video Generator
8:332:35Cloning a real person as an AI avatarThe tutorial demonstrates the step-by-step process of creating a 'digital twin' by recording a webcam video and reading a safety script to train a custom HeyGen avatar.HeyGen· AI Avatar Video Generator
12:461:06Changing avatar outfits and environments with AIThe creator uses the 'Design with AI' feature to change the clothing and background of an existing avatar clone using a text prompt for a 'dark cinematic stage'.HeyGen· AI Inpainting
15:231:50Creating a virtual character in HeyGenThe video shows how to design a stylized virtual character (Matteo) using AI prompts, selecting a Pixar-style aesthetic and assigning a specific voice from the library.HeyGen· AI Avatar Video Generator
Watch “How to Use HeyGen in 2026 (Step-by-Step Beginner Tutorial)” →

Script To Video AI Generator

3:330:56Generate AI video script in HeyGenThe user demonstrates how to use HeyGen's AI script generator by entering a topic, selecting a professional tone, and providing additional context to produce a video script.Cybernews
0:411:52Generate a video from a prompt with HeyGen AI AgentThe creator demonstrates the HeyGen Video Agent workflow by selecting an avatar, choosing a visual style, and entering a prompt to generate a video outline and script.Joseph Martin
2:122:01Generate a video from a prompt with HeyGen AI AgentCurrentThe user demonstrates how to use the HeyGen AI Agent by entering a text prompt to automatically generate a multi-scene promotional video with a public avatar, script, and visuals.Simon Crowe
3:422:02Generate a full video using HeyGen Video AgentThe user demonstrates using the HeyGen Video Agent to turn a text prompt about Nvidia into a fully edited video with script, visuals, and an AI avatar.Ayushman Pandita
5:091:18Build a scene-by-scene video with HeyGen EditorThe walkthrough shows how to use the HeyGen editor to generate a script using the AI script writer, select an avatar, and export a 4K video about vegetarianism.Daniel Davidson
5:290:53Generate long-form video with HeyGen Video AgentThe demo shows how to use the Video Agent tool to generate a full video from a text prompt, including selecting styles, attaching knowledge files, and setting the video duration.@KevinStratvert
6:061:08Automate multi-scene videos with Video AgentThe demonstration shows how to use the 'Video Agent' feature to prompt for a full multi-scene video including layout, script, and avatar movements from a single prompt.HeyGen