Video call with an AI character

Cách làm

1. Bấm 📞 Gọi. Anna chào bạn.
2. Giữ nút 🎤 Nói (hoặc gõ) để trả lời.
3. Cuộc gọi dài 2 phút; kết thúc có bản ghi lại.

How real is this example

The 'video' is a real photo with a speaking indicator, not a talking avatar. Anna's voice is the browser voice. Scripted Anna asks 5 fixed small-talk questions.

AI: replies come from Cloudflare's free built-in AI (Llama 3.3 70B) through our small server function; no key is in the page. Up to 150 replies a day for the whole site (40 per person). When that runs out, the badge shows 'Bản kịch bản' and the page answers from a script we wrote. Typing works everywhere; the 🎤 button needs Chrome or Edge.

See it in the real world

• Duolingo blog – Video Call ↗official page · paidReal-time talk with Lily, starting from a topic you just studied
• Duoplanet – Duolingo Video Call guide ↗teacher blog · free2–6 minute calls, tap-to-speak button, transcript afterwards
• How to Video Call with Lily (quick guide) ↗YouTube walkthrough · freeWhere to find the call and what it looks like
• Video Call: Real chats with Lily on Duolingo ↗YouTube walkthrough · freeDuolingo engineering lead demoing the feature