Alex L. Zhang
PhD Student at MIT CSAIL, Princeton CS '24
Hi! I broadly work on areas where language models are underutilized or inefficient. I am currently a 2nd year PhD student at MIT CSAIL advised by Omar Khattab and Tim Kraska. I am grateful to be a Laude Open Research Resident and a research fellow at Prime Intellect to push forward open science. I am also a recipient of the NSF GRFP.
To understand what I’m thinking about right now, read in order:
- Recursive Language Models (RLMs).
- The Mismanaged Geniuses Hypothesis.
- Empirical evidence of harnesses inducing locally in-distribution trajectories.
- Prime Agent, a production RLM harness.
- Speculative programmatic tool calling (PTC).
Some other notable things worth mentioning:
- I used to make a lot of benchmarks: VideoGameBench, KernelBench, SWE-bench Multimodal
. - I am part of the core team running the GPU MODE competitions and community.
- I graduated as the top student of the Princeton CS department.
I’ve had brief but pleasant stints at a variety of companies: Sakana AI, VantAI, Snap Research, Apple, and Claryo.
Feel free to reach out to talk about anything through my email at [x]@mit.edu where [x]=altzhang. I also help moderate the GPU MODE community. As a last fun fact, I used to make and sell PC games, one of which was mildly successful (~100k+ players). [unfinished example]
latest posts
| Aug 24, 2026 | Speculative Programmatic Tool Calling |
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| Jul 20, 2026 | Language model harnesses are compositional generalizers |
| Apr 26, 2026 | A Mini Exercise on the Mismanaged Geniuses Hypothesis (RLMs on LongCoT) |
selected publications
news
| Jun 12, 2025 | Went on stage with Lisa Su, CEO of AMD, who recognized our AMD GPU programming competition and announced the winners! [picture]. |
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| Nov 01, 2024 | Started as a researcher at VantAI under the wonderful Luca Naef! |
| Jun 03, 2024 | Starting a research internship at Snapchat focused on large-scale recommendation systems! |
| Mar 17, 2023 | Organized and went on AI TigerTrek with my close (and brilliant!) friends Evan Dogariu, Michael Tang, and Jiatong Yu! We visited and had Q&A’s at OpenAI, Google, Anthropic, Redwood Research, Stanford HAI, Nuro, and more! |
| Aug 29, 2022 | Finished my internship in Seattle at Apple INFI working on LMs in Siri! |