Duolingo

“We have a model that can predict whether you're going to get an exercise right or wrong, and we're actually extremely accurate. So when we give you an exercise, we know if you're going to get it right or wrong. We're very accurate.”

“So we started sending this notification the fifth day that said, these reminders don't seem to be working. We're going to stop sending them for now. It turns out this is very powerful at getting people to come back because they feel like we've given up on them…”

“The first thing that we did that worked was making lessons, not 30 minutes long, but two minutes long. It makes a big difference. And it's not because people were spending less time. It's that Two minutes is amazing because at any point in time, you just think…”

“There may be some countries that leapfrog some countries that are at the moment, probably a little behind, you know, for them, this is the only way in which they can scale their education.”

“We have ten million active users that have a streak longer than 365.”

“Whenever we give you an exercise, the right thing to do is to give you an exercise that you're about 83% chance of getting it correct. Turns out that maximizes enjoyment.”

“First of all, I do think that education is going to change over the next, some number of years. I can't say one year, but it's probably less than 20 years. Some things are gonna change. And the reason for that is it's just a lot more scalable to teach with AI …”

“We have run over the history of the company. We have run 16,000 AB tests.”

“Over the last couple of years, what we did is we've retooled this whole content creation pipeline to be entirely based on large language models. I mean, it's all based on AI. So humans are not involved any longer, or very little, if at all.”

“Neither of us likes learning languages. We actually are not language lovers. We don't like learning languages. And I think because of that, we made a Product that works for the average person, as opposed to for people who are obsessed with learning languages.”

“And I actually was against it. I'm like, I don't know if anybody's going to be interested in this.”

“At this point, we basically teach the 40 languages to every base language. And we're, that's a major increase in the number of courses.”

“The artists are still here, but they are going so much faster. What artists could do before in like a month now, they can do in like a day. It's really unleashing their creativity because they're not spending their time on the mechanics of like, is this shadow…”

“We can do a much better job at teaching math with large language models, and we have a math course but it is, it's, you know, we're completely retooling it to be a lot more like a tutor.”

“I think it also helps us that we're an education company because, you know, ultimately education, you can't really say that education is bad. It's hard to argue against education. So that allows us to, that allows our marketing to do things where we can't be c…”

“It's the most popular way to learn languages in the world.”