I am Junjie Li, an M.S. student at the Chinese Academy of Sciences (2024-2027).
I am currently an LLM Algorithm Intern at Apple (May 2026 - Present).
I recently completed an LLM research internship at Microsoft (Apr 2025 - Apr 2026), and earlier internships at Shanghai AI Lab (Dec 2024 - Apr 2025) and NetEase (Aug 2024 - Dec 2024).
Those experiences shaped how I build: keep the core idea sharp, keep the system practical, and keep the iteration loop fast.
My main interests are long-context generation and reasoning, LLM evaluation, and agent systems. I enjoy turning research ideas into tools that are simple to run, easy to debug, and reliable in real workflows.
I share notes, prototypes, and experiments on my website: picrew.github.io.
If you'd like to discuss long-context LLMs, evaluation, agent systems, or other research and engineering ideas, feel free to reach me at lij850601@gmail.com.