Jonathan Cheng
@jonathancheng.bsky.social
English PhD turned Machine Learning Researcher. I medicate my imposter syndrome with cold brews.
Current:
Foundation Models @ Apple
Prev:
LLMs/World Models @ Riot Games
RecSys @ Apple
Seattle 🏳️🌈
Current:
Foundation Models @ Apple
Prev:
LLMs/World Models @ Riot Games
RecSys @ Apple
Seattle 🏳️🌈
I think one common experience in the new era has been like “oh, I didn’t know you knew how to build X.”
“I didn’t!”
“I didn’t!”
January 19, 2026 at 8:50 PM
I think one common experience in the new era has been like “oh, I didn’t know you knew how to build X.”
“I didn’t!”
“I didn’t!”
Was hearing a story of someone trying to prevent their dog from fighting a mountain lion on a walk. And yeah, I would like to opt out of those decision trees.
January 11, 2026 at 5:40 PM
Was hearing a story of someone trying to prevent their dog from fighting a mountain lion on a walk. And yeah, I would like to opt out of those decision trees.
We are all 10xers now!
January 6, 2026 at 6:25 PM
We are all 10xers now!
I was vaguely wondering when the Valorant and ml world will collide. I knew it was only a matter of time 😂
In case yall want a bad cypher/fill…
In case yall want a bad cypher/fill…
January 5, 2026 at 8:29 PM
I was vaguely wondering when the Valorant and ml world will collide. I knew it was only a matter of time 😂
In case yall want a bad cypher/fill…
In case yall want a bad cypher/fill…
I’m just waiting for a big boat with a banner that says mission accomplished. The irony is going to be too much.
January 4, 2026 at 3:03 AM
I’m just waiting for a big boat with a banner that says mission accomplished. The irony is going to be too much.
Also, what is the name of this band? 😂
January 2, 2026 at 10:25 PM
Also, what is the name of this band? 😂
Weirdly enough gpt good at this. Claude pretty bad.
As much as it pains my Claude heart.
As much as it pains my Claude heart.
January 2, 2026 at 5:24 PM
Weirdly enough gpt good at this. Claude pretty bad.
As much as it pains my Claude heart.
As much as it pains my Claude heart.
Is it still my research code if Claude code actually optimized my method in a non-trivial way?
Oops, did I say “my?” I meant code belonging to some less adept researcher…
Oops, did I say “my?” I meant code belonging to some less adept researcher…
December 30, 2025 at 7:51 PM
Is it still my research code if Claude code actually optimized my method in a non-trivial way?
Oops, did I say “my?” I meant code belonging to some less adept researcher…
Oops, did I say “my?” I meant code belonging to some less adept researcher…
You saw that vibe coded google earth flight simulator and all you could do was yawn, yearning for the days it meant something 😂
December 30, 2025 at 7:33 PM
You saw that vibe coded google earth flight simulator and all you could do was yawn, yearning for the days it meant something 😂