How to Use HeyGen for AI Video Generation (Step-by-Step Guide)
Learn how to create professional videos using HeyGen, explore its features, limitations, and compare it with alternatives like Synthesia, Pictory, and Lumen5. Includes API usage example in Python.
Β· SuperML Editorial Team Β· text-to-video Β·

Published on June 9, 2025
By SuperML Editorial Team
Want to turn text or prompts into engaging videos in minutes using AI? HeyGen is one of the most popular AI video generation tools that helps you create studio-quality videos without cameras, actors, or editing software.
In this guide, weβll walk you through how to use HeyGen to create videos for tutorials, product explainers, social media, or internal training content.
π What is HeyGen?
HeyGen (formerly Movio) is a generative AI video creation tool that transforms text into talking-head videos using realistic AI avatars and voices.
Core features include:
- 100+ avatars
- 40+ languages and tones
- API support for automation
- Custom branding
- Scene and slide-based storytelling
π οΈ Step-by-Step Guide to Using HeyGen
β Step 1: Sign Up or Log In
- Visit heygen.com
- Click Sign Up or Log In
- Use Google, Microsoft, or email-based registration
π¬ Step 2: Start a New Video Project
- Click Create Video
- Choose between:
- Talking Avatar
- Presentation Format
- Templates
π€ Step 3: Choose Your Avatar and Voice
- Pick from 100+ AI avatars
- Select voice and language
- Adjust tone (calm, energetic, professional)
- Upload your own avatar (Pro plans only)
π Step 4: Add Your Script
- Paste or write your script
- Break into scenes for better control
- Tone and emotion can be adjusted per scene
π¨ Step 5: Customize Layout
- Add logo, overlays, subtitles
- Customize background, fonts, brand colors
π§ Step 6: Preview & Generate
- Use Preview to see draft
- Click Generate to render final video (takes 2β5 min)
πΎ Step 7: Download or Share
- Download as
.mp4
- Or share via direct link, embed, or post to YouTube, LinkedIn, LMS
π§ HeyGen Capabilities, Limitations & Tool Comparison
β HeyGen Capabilities
Feature | Description |
---|---|
π§βπ€ AI Avatars | Realistic characters for various use cases |
π£οΈ Multilingual Support | 40+ languages with lifelike voices |
π§ Lip Sync | Natural movement and tone-matching |
πͺ Slides & Scenes | Multi-part structured video creation |
π API Access | Generate videos programmatically |
π¨ Custom Branding | Add your logos, fonts, and themes |
β οΈ Limitations of HeyGen
Limitation | Details |
---|---|
β Static Gestures | Limited hand/body movement |
π Custom Avatars = Paid | Requires higher subscription |
β±οΈ Script Length Caps | Free tier has limits |
π¬ No Cinematic Effects | Not for animation-heavy stories |
π€ When to Use HeyGen vs Other Tools
Scenario | Tool | Why |
---|---|---|
Training/Corporate | HeyGen | Realistic, multilingual, brand-aligned |
Storytelling/Marketing | Pictory, Lumen5 | Visual effects, stock footage |
Audio-Focused | Descript | Audio-first workflows |
API/Automation | HeyGen, Synthesia | Programmatic video generation |
π¨βπ» HeyGen API: Generate Videos with Python
π¦ Requirements
- HeyGen API Key (from dashboard)
- Python 3.7+
requests
library
βΆοΈ Generate Video via API
import requests
API_KEY = 'your_heygen_api_key'
API_URL = 'https://api.heygen.com/v1/video/generate'
headers = {
'Authorization': f'Bearer {API_KEY}',
'Content-Type': 'application/json'
}
payload = {
"avatar_id": "ava_123456789", # Replace with actual avatar ID
"voice_id": "voice_en_us_01",
"script": "Welcome to the future of AI video generation using HeyGen!",
"title": "HeyGen Intro",
"aspect_ratio": "16:9",
"output_format": "mp4"
}
response = requests.post(API_URL, headers=headers, json=payload)
if response.status_code == 200:
video_id = response.json().get("video_id")
print(f"β
Video generation started. Video ID: {video_id}")
else:
print("β Failed to generate video:", response.text)
π Check Status & Get Video URL
import time
def check_video_status(video_id):
status_url = f'https://api.heygen.com/v1/video/{video_id}/status'
while True:
res = requests.get(status_url, headers=headers)
data = res.json()
if data.get("status") == "completed":
print("β
Video ready!")
print("Download link:", data.get("download_url"))
break
elif data.get("status") == "failed":
print("β Video generation failed.")
break
else:
print("β³ Still processing...")
time.sleep(10)
check_video_status(video_id)
π§Ύ Final Thoughts
HeyGen empowers creators, educators, and businesses to produce high-quality videos at scale β without cameras, actors, or editors. Whether youβre creating training content, promotional videos, or onboarding flows, HeyGen offers the tools to automate and elevate your video production process.
π Useful Links
- π HeyGen Official Site
- π HeyGen API Docs
- πΊ HeyGen YouTube Channel