Jianchao Li
Senior Software Engineer at Meta
Welcome to my corner of the internet. I’m a software engineer who builds with AI. Here I write about deep learning, computer vision, investing, and building things with AI.
Portfolio Playground
A web app for building custom investment portfolios, visualizing historical performance, and comparing risk/return metrics.
Browser ML Demos
Interactive machine learning demos that run entirely in your browser using Transformers.js. No server required — all inference happens locally on your device.
More coming...
Posts
No, AI Is No Longer a Hype
·7 mins
Some people still dismiss AI as a hype that can only handle simple tasks. I disagree. Here’s how AI has fundamentally changed the way I write, learn, and build.
Vibe Coding Portfolio Playground
·6 mins
I built a portfolio analysis tool entirely through vibe coding — 100% of the code was written by AI. Here’s what I made and what I learned.
Why Every Software Engineer Should Use AI
··4 mins
This post shares my perspectives on why every software engineer should use AI — a cultural shift as significant as any we’ve experienced.
The Double-Edged Sword of Compounding
While many investors understand the power of compound returns, they may not fully grasp that compounding can also result in a significant downside. This post explores this double-edged sword.
Debugging Hidden GPU Processes in PyTorch
When nvidia-smi shows free GPUs but PyTorch throws OOM errors, here’s how to find and kill zombie processes holding GPU memory.
Understanding Fully Convolutional Networks
··32 mins
I will start from the problem of semantic segmentation, introduce how to use CNNs to solve it, and talk about fully convolutional networks, a widely used framework for semantic segmentation, in great details. Moreover, I will analyze the MXNet implementation of FCNs.