Hey. I’m Saksham Arora, a data scientist, quant researcher and AI engineer. I build the tools I wish I had, then measure whether they actually work. Lately that means things that sit next to how I study and how I work with Claude. More about me on my portfolio (psst: press ` there).
Things I’ve shipped lately
- Margin sits beside a lecture on Udemy, Coursera or YouTube and writes the study notes into Obsidian while you watch, with the code run. The story behind one bug: The Lecturer’s Head Was a Slide.
- Latch pins a lecture or a PDF in full screen so Escape does nothing. How that is even possible: Escape Does Not Have to Exit Full Screen.
- Claude Code mods: teach-me, vhs, frugal and lofi, plus awesome-claude-mods, a list of the ones worth installing.
- LMEX benchmarks LLM API latency every hour and lists it like a stock exchange. Intuition explains ML math with visuals. Sandbox Lab is a shelf of small simulations.
Latest posts
- Jane Street Tried Diffusion on Market Data and 88% of the Samples Blew Past 8 Sigma
- Gemini 4 Argon Costs the Same Per Token and Twice Per Task AI
- Ember-1 Cut 40% of the Tokens and Kept the Score AI
- 700 Agents Escaped a GET-Only Sandbox With a Link Shortener AI
- Grok 4.7 Doubled Its Terminal-Bench Score and Still Lost the Index AI
- We Built an AI Community OS in 48 Hours. We Won.
- Why I Rebuilt My HFT Matching Engine From Scratch HFT
Everything else is under tags.
What You’ll Find Here
- AI models, read through the numbers. A new model or benchmark drops, I go past the headline to the per-task cost, the tail latency, or the part of the eval nobody quoted. AI
- Things I build. Write-ups behind Margin, Latch and the mods: what broke and how I fixed it.
- Quant and data science. Market data, synthetic data, competition notes. Quant
- Systems. Low-latency C++, the matching engine, cache locality, lock-free structures. Systems
- Wiki. Short reference notes: order book design, cache locality, C++ systems programming and the matching engine build log. Wiki
Connect With Me
GitHub · LinkedIn · X · saksham10arora@gmail.com
market data delayed by 0ns · this blog is not financial advice