Alexander (Alex) Kranias

Hi, I'm Alex. I recently graduated from Georgia Tech with my BS in Computer Science. I love working on hard problems with great people.

Research

April 2025	Generalized Neighborhood Attention: a sparse multi-dimensional attention mechanism for ViTs/DiTs/MMDiTs (contributor).
Aug 2023 - May 2024	Systems Research at HPArch Lab: Mitigating Row Hammer Attacks with Novel Cache Replacement algorithms.
November 2023	DuckTrack: open-source multimodal computer-use data collection software - acknowledged by OpenCUA at NeurIPS '25.
May 2023	ARB: Advanced Reasoning Benchmark for Large Language Models - an early benchmark of expert-level reasoning tasks (NeurIPS '23 workshop).

June 2026	modal-gpu-retry: a lightweight Modal wrapper for automatic GPU escalation upon job failures.
February 2026	Diffuji: a diffusion-powered instant camera.
October 2025	Curserve: a fast and scalable server-side engine for agentic coding. Check out Nathan's blog post on it!
October 2024	CLaiM: a web app that uses computer vision to automate the filing of property insurance claims after natural disasters strike.
September 2024	telepathy: a non-invasive, private silent speech interface between people and machines.
February 2024	3dReal: an iOS app creating NeRFs from networks of mobile phones.
September 2023	Bite: a computer vision enabled watch that tracks your daily nutritional intake for you.

I grew up in Tampa, FL, and wandered to Georgia Tech for my college career where I've spent much of my time hacking, rowing, and learning cool things.
I love building with friends - whether for hackathons, research, or more serious endeavors. I find creating things to be one of life's greatest pleasures and doing it with others makes it all the more fulfilling :)
I've been into the media arts for a long time. I do a lot of photography (media.alexkranias.com), but also a mix of video and digital art as well.
I try and spend much of my free time in the outdoors - whether hiking, cycling, rowing, etc. I've been on the lookout for new challenges in this realm!

March 1, 2026	Thoughts on Diffuji
December 28, 2025	Compressing a Histogram from 16GB to 2KB.
Always updating...	Good (Technical) Reads.