Alexander Wettig

I'm a researcher at Cursor working on RL for the Composer models. Previously, I was a PhD student at Princeton University advised by Danqi Chen. Prior to that, I was an undergraduate at the University of Cambridge, where I was fortunate to work with Adrian Weller. I grew up in Wolfenbüttel, Germany.

My PhD research was centered on building better language models, usually by focusing on simple methods and training data. This includes work on selecting pre-training data [1], optimizing data mixtures [2], careful data repetitions [3], and long-context recipes [4].

I was also part of the team that built SWE-bench and SWE-agent.

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Publications

(* indicates equal contribution)

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