Yep, I noticed recently that on their official research portal they stopped publishing anything publicly in I think 2021. The last couple of articles before tha

Yep, I noticed recently that on their official research portal they stopped publishing anything publicly in I think 2021. The last couple of articles before that were along these lines: https://research.duolingo.com/papers/yancey.kdd20.pdf https://research.duolingo.com/papers/yancey.kdd20.pdf I assume all the research after this point is too revealing to publish.