The Product Experience

How Duolingo built an AI conversation bot - Zan Gilani (Principal Product Manager, Duolingo)

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Mar 12, 2025
Zan Gilani, Principal Product Manager at Duolingo, shares intriguing insights into the AI avatar, Lily, enhancing language learning through conversation practice. He discusses the challenges of creating engaging conversational AI and emphasizes emotional well-being in the learning process. Zan also reveals Duolingo's innovative approach to gamification and user engagement, and how strategic A/B testing has shaped their product evolution. The conversation wraps up with valuable lessons on measuring success in learning products and scaling effectively.
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ANECDOTE

Zan's Duolingo Journey

  • Zan Gilani, at Duolingo for 10 years, started as a marketing intern.
  • Now, he co-leads the Video Call project, featuring AI avatar Lily.
INSIGHT

The Stickiness Challenge

  • Conversational AIs often excel in demos but lack long-term engagement.
  • Duolingo prioritizes stickiness, recognizing that motivation is key to learning.
ADVICE

Authenticity in AI

  • Make AI conversations authentic by using real language.
  • Give the AI memory to foster a sense of relationship, like with Duolingo's Lily.
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