Duolingo adds GPT-4 powered conversational capability for language learning

AI Impact Summary

Duolingo integrates GPT-4 to drive dynamic, AI-generated conversations for language practice, enabling more natural interactions and real-time feedback. This capability shifts from scripted prompts to generative dialogue, requiring robust prompt design, safety filters, and cost controls, plus telemetry to measure engagement and learning impact. The technical team should plan for rate limits, caching, moderation workflows, and a staged rollout to assess uplift.