What Agentic AI “Vibe Coding” In The Hands Of Actual Programmers / Engineers
February 12 2026 in Julia, Programming | Tags: agentic ai, Claude, codex, llm, sciml | Author: Christopher Rackauckas
I often have people ask how I’m using Claude code so much, given that I have a bot account storming the SciML Open Source Software repositories with tens to hundreds of PRs a day, with many of them successful. Then GSoC students come in with Claude/Codex and spit out things that are clearly just bot spam, and many people ask, what is different? The difference is actually knowing the codebase and the domains. It turns out that if you know how to actually program, you can use the LLM-based interfaces as just an accelerator for some of the tedious work that you have to do. I tend to think about it the same as working with a grad student: you need to give sufficient information for it to work, and if you don’t get good stuff back it’s … READ MORE
Claude Code sucks but is still useful: experiences maintaining Julia’s SciML scientific computing infrastructure
October 6 2025 in Differential Equations, Julia, Mathematics, Programming, Science, Scientific ML | Tags: agentic ai, Claude, differential equations, julia, llm, numerical analysis, physics, scientific computing, vibecoding | Author: Christopher Rackauckas
Claude Code sucks but is still useful: experiences maintaining Julia’s SciML scientific computing infrastructure
So it’s pretty public that for about a month now I’ve had 32 processes setup on one of the 64 core 128gb RAM servers to just ssh in, tmux to a window, and tell it to slam on some things non-stop. And it has been really successful!… with the right definition of success. Let me explain.
This is a repost of the long post in the Julia Discourse.
* How is Claude being used, and how useful has it been?
j-bowhay, post:1, topic:131009
I think the first will answer the others. Basically, Claude is really not smart at all. There is no extensive algorithm implementation that has come from AI. I know some GSoCers and SciML Small Grants applicants have used AI (many without disclosure) but no wholesale usage has … READ MORE
A Guide to Gen AI / LLM Vibecoding for Expert Programmers
August 22 2025 in Programming, Science | Tags: chatgpt, Claude, Generative AI, llm | Author: Christopher Rackauckas
I get it, you’re too good to vibe code. You’re a senior developer who has been doing this for 20 years and knows the system like the back of your hand. Or maybe you’re the star individual contributor who is the only person who can ever figure out how to solve the hard problems. Or maybe you’re the professor who created the entire subject of the algorithms you’re implementing. I don’t know you, but I do know that you think you’re too good to vibe code. And guess what, you’re absolutely and totally wrong.
Facetious? Maybe… but I will go even further.
No, you’re not too good to vibe code. In fact, you’re the only person who should be vibe coding.
I would have thought this statement was crazy just a month ago because this label of “expert” coder also applies to me. … READ MORE
ChatGPT performs better on Julia than Python (and R) for Large Language Model (LLM) Code Generation. Why?
November 19 2023 in Julia, Programming | Tags: ai, artificial intelligence, chatgpt, julia, large language models, llm, machine learning, MATLAB, python, r | Author: Christopher Rackauckas
Machine learning is all about examples. The more data you have, the better it should perform, right? With the rise of ChatGPT and Large Language Models (LLMs) as a code helping tool, it was thus just an assumption that the most popular languages like Python would likely be the best for LLMs. But because of the increased productivity, I tend to use a lot of Julia, a language with an estimated user-base of around a million programmers. For this reason, people have often asked me how it fairs with ChatGPT, Github Copilot, etc., and so I checked out those pieces and… was stunned. It’s really good. It seemed better than Python actually?
The data is in: Julia does well with ChatGPT
This question was recently put to the test by a researcher named Alessio Buscemi in A Comparative Study … READ MORE