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Explainer video with an AI avatar in multiple languages

Level: IntermediateDuration: Half a daySteps: 4

In short

For an explainer video with a talking AI avatar you need neither camera nor studio. You write a clear script with ChatGPT, have an avatar speak the script in a tool like HeyGen or Synthesia, optionally generate a natural voice and edit the result. This creates professional explainer videos, even in several languages.

Tools you need
ChatGPTSynthesiaElevenLabsDescript

Step by step

  1. 1ChatGPT Open tool

    Create a clear, well-structured script for the explainer video.

    Example prompt

    Write a script for a [length] explainer video on the topic [topic] for [audience]. Clear language, clear structure (intro, 3 key points, summary), a call-to-action at the end.

  2. 2Synthesia Open tool

    Generate an avatar video in over 140 languages from the script.

    Example prompt

    Create an explainer video with a [professional/friendly] avatar from this script, language [language(s)], with matching subtitles: "[paste script]"

  3. 3ElevenLabsAd Open tool

    Alternatively, generate or clone your own natural narration voice.

    Example prompt

    Generate a natural narration voice for my explainer video, [calm/friendly], medium pace, clear pronunciation: "[paste script]"

  4. 4Descript Open tool

    Do the final polish, editing and adjustments on the finished video.

    Example prompt

    Trim the video to the key statements, remove pauses and add text overlays for [key points] at the most important spots.

Frequently asked questions

Don't AI avatars look artificial?

The quality has risen sharply in recent years and is usually perfectly fine for explainer and training videos. A good script and natural intonation matter more than perfect lip movements.

Can I create the same video in several languages?

Yes, that's one of the biggest strengths: many tools translate script and voice so you can output the same video multilingually.

Do I need my own voice?

No, the tools provide voices. You can also clone your own voice if you want a more personal impression.

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Updated: June 2026