Jay Baxter
Sr. Staff ML Engineer @ X
Founding ML lead for Community Notes at X. Previously led ML research at Twitter Cortex.
“An inside look at X’s Community Notes, covering consumer products, product design, and AI product work.”
Career History
| Company | Role | Years |
|---|---|---|
| X (Twitter) | Sr. Staff ML Engineer & Community Notes ML Lead | ~2016-present |
| X (Twitter) | Lead, Cortex Applied ML Research | ~2014-2016 |
| MIT | Researcher (BayesDB) | ~2012-2014 |
Top Topics
Related People
Quotable Clips
“Yep. Regular people who have signed up to be Community Notes contributors. So there are a few checks, like you do have to have a verified phone number for instance. But yeah, at the end of the day, th...”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“So just because of the details of the way the algorithm works, it uses this machine learning algorithm called Matrix factorization where we fit it with Gradient Descent and whatnot. The threshold is i...”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“It means nothing like that. It's just like on some arbitrary scale-”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“If people really are so polarized that there isn't agreement among people that typically disagree, it's possible that this is one of those notes that might be correct, but it wouldn't be helpful to sh...”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“There's an argument, by the way, that seeing... Just because you might see the same misleading claim elsewhere off X, or somewhere else on X, it might be good to actually show... Better to have seen t...”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“The whole OKR determination and planning process took longer than it would take us to pick a goal and then execute on it and finish it.”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“We had to get some real data from the pilot to realize that, "Okay, the real thing going on here is people are polarized," so it was only once we got that, the real data from the pilot, that I think i...”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“We did use Asana briefly, but my memory of it is that you spent more time in the meeting grooming a backlog of irrelevant stuff than actually talking about the proper priorities. I think it's nice in ...”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“You don't have to rewrite everything from scratch. Some things are good, I guess, to rewrite. But just even deleting the unnecessary cruft and keeping the rest of the core system, that's awesome.”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“It'll take a day if you don't do anything special to speed it up. Good to know, but yeah.”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“I think the same principle applies to making the likes private.”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)
“Yeah, I'm @ _JayBaxter_ at X. Yeah, I think in particular, besides just using Community Notes, it would be great to get more substantial contributions, pull requests, collaborate on projects like Supe...”
An inside look at X’s Community Notes | Keith Coleman (VP of Product) and Jay Baxter (ML Lead)