Bozena Pajak, VP of Learning at Duolingo, joins High Signal to discuss the evolution of AI at Duolingo: from personalized difficulty models to the current generative frontier where AI characters provide low-stakes and high impact conversational practice. We discuss the role of AI in overcoming one of the biggest hurdles in language acquisition, speaking anxiety. We also talk about how Bozena's team leverages agentic workflows to scale content and why the next wave of personalization involves shifting from difficulty levels to "thematic lenses" tailored to specific user interests.

LINKS

• Bozena on LinkedIn
  
• The original AI: how your brain tracks language patterns, a Duolingo blog post
  
• How Duolingo uses AI to create lessons faster, a Duolingo blog post
  
• Duolingo is hiring a Learning Scientist (Efficacy Research), a Director of Learning Design (Language Learning), and a Director of Learning Design (Immersive Language Learning)
  
• High Signal podcast
  
• Watch the podcast episode on YouTube
  
• Delphina's Newsletter