What HeyGen’s new interactive avatars can do—and what they mean for L&D
Interactive avatars that respond to spoken questions in real time? At first, it sounds like a digital toy—and a bit like science fiction. In fact, however, HeyGen recently introduced a feature that enables exactly that: digital characters that listen, think, speak—and not as static videos, but as genuine conversation partners.
We took a closer look—with the question: What does this offer for corporate training and learning? How does it work technically? And where are the opportunities (and limitations)?
What’s behind an “interactive avatar”?
At its core, an interactive avatar at HeyGen is a digital human that responds to input—whether by voice or text—in real time. The technology combines several AI modules:
- a large language model (e.g., GPT-4) for the response,
- a text-to-speech system for the voice,
- a visual engine that generates lip movement, facial expressions, and head movement accordingly.
The whole thing runs on a streaming infrastructure that allows this response to be displayed as video with almost no delay—so you get a kind of AI-driven conversational experience. And yes, it feels surprisingly smooth.
Particularly exciting for L&D: The avatar can access company-specific knowledge (e.g., FAQs, manuals, documentation), adopt different tones (coach, moderator, expert…), and even be designed as a “digital twin”—with your own voice, gestures, and facial expressions.
What does this mean for L&D?
The idea of delivering learning content in dialogue form is not new. What is new, however, is that with this technology you can create truly scalable, interactive learning situations—without a training team, without live sessions.
A few use cases:
- Onboarding: An avatar explains processes, welcomes new employees, answers follow-up questions.
- Microlearning: A quick “Explain to me…” dialogue on the go—about tools, technical terms, processes.
- Soft Skill Training: Simulated conversations with an avatar as a difficult customer, manager, or team member.
- Support FAQs: The avatar replaces or complements traditional IT/HR FAQ lists—as an interactive explainer.
One thing is clear: This does not replace well-designed training or a structured learning architecture. But it opens up new spaces for low-threshold, flexible learning interactions that integrate well into everyday work.
How do you create such an avatar?
A brief guide from practice
We tried it out—and it actually goes quite quickly. Here’s an overview:
1. Define the objective.
What should the avatar accomplish? Who is the target audience? What questions should it be able to answer? It’s best to start with a brief briefing (“Coach for new sales employees, tone: motivating, familiar with our CRM system”).
2. Choose or upload an appearance.
You can either choose from a gallery or upload your own photo or short video. The AI generates a realistic head and facial representation from it.
3. Set the voice.
Many languages and voices are available. If desired, you can even have your own voice cloned—it works with a short voice sample.
4. Provide knowledge.
To ensure the avatar is also content-ready, you should provide relevant information—e.g., FAQs, documents, website texts. Additionally, you can define a “personality” via system prompt: factual, casual, formal, etc.
5. Activate interactivity.
In the HeyGen dashboard, you can set whether the avatar should respond to text or voice input. For voice, you may need additional speech recognition (e.g., Whisper).
6. Test & integrate.
Then it’s time to test: Does the response fit? Does the tone work? The avatar can then be integrated via API, iFrame, or Zoom app—e.g., in learning platforms, on the website, or directly in meetings.
What works well—and what doesn’t (yet)?
What works well:
- The creation is surprisingly simple—no prior knowledge required.
- The voice quality is impressive, especially with voice cloning.
- The avatar feels—depending on the context—genuinely like a real conversation partner.
- The integration into existing tools (Zoom, website) is well thought out.
What to keep in mind:
- For more complex content, careful knowledge preparation is needed.
- The responses come in real time—but with longer texts, it sometimes takes a few seconds.
- The avatar “sounds” good—but whether it also explains well “pedagogically” depends heavily on the input.
- You shouldn’t go live without a test run—reality and expectations don’t always align.
Conclusion: Not a replacement—but a powerful new tool
An interactive avatar does not replace a trainer, a good instructional design concept, or a personal conversation. But it can be an exciting element within a modern learning environment—whether as an introduction, accompaniment, or repeatable knowledge source. And yes, it feels quite good when an AI looks at you and says: “Hello, I’m your coach. What would you like to know today?”
