Jack Hessel's Homepage

Jack Hessel

contact: [email protected]

CV (as of Oct. 2025).

I am on github, bluesky, twitter, and google scholar.

I am a researcher at Anthropic.

Previously: I was on the founding team at Samaya AI, I was a postdoc/research scientist at AI2, and before that, I earned a PhD in Computer Science at Cornell University.

If you're looking for a bio for a talk introduction, here's one. If you're looking for me in person, I look something like this:

Me

Selected projects:

I publish at ML/NLP conferences like NeurIPS, ACL, etc. My full list of publications (including more recent ones :-) ) is available on Google Scholar. Here are 3 representative previous works:

Former interns

I've been undeservedly fortunate to (co-)host many PhD research interns. Following their excitement and insight has been a highlight of my working life. Former interns (whom I hope do not regret entrusting me+their co-hosts with one of their valuable PhD summer quarters!) include: Sarah Wiegreffe, Yanpeng Zhao, Liunian Harold Li, Wanrong Zhu, Amita Kamath, Jillian Fisher, Tejas Srinivasan, Anthony Sicilia, Yutaro Yamada, Orion Weller, Skyler Hallinan, and Howard Yen.

More?

I earned a B.A. from Carleton College in 2014. I returned to Carleton briefly in 2019 as a visiting faculty member. I'm a bike lane/transit fan, an ice hockey player, a consumer/occasional producer of electronic music, an improv attempter, a die hard San Jose Sharks fan, an enjoyer of cooking vegetables, an amateur lockpicker, and I like mountains/hiking/climbing/camping/sitting by rivers/etc. I grew up in Portola Valley, CA.