Leon Chen


I’m co-founder and CEO of MD.ai, where we are building tools for medical AI annotation, training, validation, and deployment. We’re a small (but growing!) team of doctors and engineers committed to helping enable people and organizations around the world build meaningful medical AI applications.


I love all things related to machine learning/deep learning/data science. You can find me on Kaggle. I also love to build stuff for the web. Check out Keras.js, a library I built for running trained Keras models in the browser with GPU acceleration through WebGL, before Google released their excellent Tensorflow.js library.

I have co-authored academic peer-reviewed articles on mathematical modelling of cancer and brain-computer interfaces.

I have an MD from Harvard Medical School, and studied engineering at the University of Washington and MIT.

I also occasionally write and produce electronic music.

Contact Me

If you want to chat, get in touch!