How to Create an Educational Video with AI in 30 Minutes : Synthesia and ChatGPT

Why Use Synthesia and ChatGPT for Your Educational Videos?

Creating a professional educational video without equipment or expertise is now possible with AI. This tutorial combines Synthesia, for realistic avatar videos, and ChatGPT, for crafting an effective script, in just 30 minutes. Perfect for training, YouTube, or presentations, this duo is accessible to everyone. For more guides, check out our AI Tutorials.

What You Need Before Starting

Here’s what you’ll need:

• A Synthesia account (free: 10 min/month with watermark; paid from $18/month).
• ChatGPT (free with GPT-4o mini on chat.openai.com, or ChatGPT Plus at $20/month for GPT-4.5 and enhanced GPT-4o).
• A clear topic (e.g., “SEO Basics” or “Intro to AI”).
• 30 minutes and a connected computer.

Step 1: Write a Script with ChatGPT (10 min)

Go to ChatGPT on chat.openai.com and request a structured script:

• Prompt: “Write a 200-word script for a 2-3 minute educational video on [your topic], with an intro (50 words), 3 key points (120 words total: 40 words each), and a conclusion (30 words), in a simple tone.”
• Example: “Write a 200-word script for a 2-3 minute educational video on SEO basics, with an intro (50 words), 3 key points (120 words: keywords, content, links, 40 words each), and a conclusion (30 words).”
• Check: ensure the text is clear and concise (130-150 words/min). Edit or shorten if needed.

Tip: With ChatGPT Plus (GPT-4.5), add “professional and engaging tone” for a more formal script.

Step 2: Set Up Your Video in Synthesia (15 min)

Log in to Synthesia:

• Create a project: click “New Video” and pick an avatar (e.g., “Anna – Teacher” from 230+ options).
• Paste the script: in the “Script” tab, insert each part into a separate scene. Example: intro (50 words) in “Scene 1,” point 1 (40 words) in “Scene 2,” point 2 in “Scene 3,” point 3 in “Scene 4,” conclusion (30 words) in “Scene 5.” Press “Enter” between sections to split scenes.
• Customize: select a voice (e.g., “Sophie – English” in “Voices,” default speed 1.0x for natural pace). Add gestures in “Gestures” (e.g., “Nod” on “point 1,” “Wave” on “conclusion”). Choose a background (e.g., “Whiteboard” in “Templates”).
• Preview: use “Preview” to check scene transitions and gesture timing.

Personal Tip: Add a “Nod” (head nod) or “Wave” (light wave) on a key phrase for a natural feel; limit to 1-2 gestures to avoid overdoing it.

Step 3: Finalize and Export the Video (5 min)

Once set up:

• Check: in “Preview,” ensure voice (1.0x) and gestures align with the script.
• Adjust: edit a word via “Edit Script” or slow the voice to 0.9x in “Voice Settings” if too fast.
• Export: click “Generate” for an MP4 file (rendering: 2-3 min with a paid account).

Note: Free: 10 min/month with watermark; paid ($18/month): no watermark, more minutes.

Enhance Your Video (Optional)

For a polished result:

• Add subtitles: use Kapwing (free) manually, Sendshort or enable “Auto Captions” in Synthesia (paid).
• Include a visual: generate a diagram with MidJourney. Prompt: “Minimalist SEO basics diagram, arrows connecting keywords, content, and links, black and white, clear, 4k.” Download it, then in Synthesia, go to “Media” > “Upload,” and add it to “Scene 2” (point 1) for 10-15 sec.

Tip: Use one image on a key point to keep focus on the avatar and message.

Why This AI Duo Works So Well

ChatGPT (GPT-4o mini or Plus) crafts a clear script instantly, and Synthesia turns it into a pro video without filming. This combo makes educational video creation fast, affordable, and approachable.

In Summary

Creating an educational video with AI in 30 minutes is easy with Synthesia and ChatGPT. This 2025 AI tutorial guides you to a professional result, perfect for sharing knowledge. Explore our AI Tutorials or follow AI News for more ideas.

Useful Links

• Synthesia Documentation – Official guide.
• ChatGPT – Free or Plus access.
• Synthesia – Create your video.
• Synthesia on AI Tools – Tool overview.