Thursday, April 09, 2026

AI: LLM Wiki & tools, by Andrej Karpathy

llm-wiki
"A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you."



"Something I'm finding very useful recently: using LLMs to build personal knowledge bases for various topics of research interest. In this way, a large fraction of my recent token throughput is going less into manipulating code, and more into manipulating knowledge (stored as markdown and images). The latest LLMs are quite good at it."



Post by Andreas Horn @ | LinkedIn

𝟮𝟬 𝗺𝗶𝗹𝗹𝗶𝗼𝗻 𝘃𝗶𝗲𝘄𝘀 𝗶𝗻 𝟯 𝗱𝗮𝘆𝘀 - 𝗮𝗻𝗱 𝘀𝘁𝗶𝗹𝗹 𝗻𝗼𝘁 𝗲𝗻𝗼𝘂𝗴𝗵 𝗽𝗲𝗼𝗽𝗹𝗲 𝗮𝗿𝗲 𝘁𝗮𝗹𝗸𝗶𝗻𝗴 𝗮𝗯𝗼𝘂𝘁 𝘄𝗵𝗮𝘁 𝗔𝗻𝗱𝗿𝗲𝗷 𝗞𝗮𝗿𝗽𝗮𝘁𝗵𝘆 𝗷𝘂𝘀𝘁 𝗿𝗲𝘃𝗲𝗮𝗹𝗲𝗱: 𝗺𝗼𝘀𝘁 𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗥𝗔𝗚 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀 𝗮𝗿𝗲 𝘀𝗼𝗹𝘃𝗶𝗻𝗴 𝘁𝗵𝗲 𝘄𝗿𝗼𝗻𝗴 𝗽𝗿𝗼𝗯𝗹𝗲𝗺. ⇣

Andrej Karpathy shared how he's been using LLMs lately. He's writing less code with AI and spending most of his tokens building and maintaining a personal knowledge base on whatever he's actively researching.
  • Stage 1: Data Ingest – Dumps raw research into a bucket using a Browser Clipper and Hotkeys.
  • tage 2: LLM Compilation – LLMs (like ChatGPT or Claude) read and summarize every incoming source for automated bookkeeping.
  • Stage 3: The Wiki – Manages interrelated Markdown files and visualizations through Obsidian.
  • Stage 4: Q&A / Querying – Queries a compounded synthesis via Auto-maintained Index Files.
  • Stage 5: Output Formats – Generates Marp slide decks, Matplotlib charts, and new pages.
  • Stage 6: Linting – Performs health checks and fills gaps using LLM Agents and Web Search.
  • Stage 7: Extra Tools – Builds custom search engines using Vibe-coding (coding by natural language interaction with AI).
  • Stage 8: Future Direction – Removes context window reliance through Model Fine-tuning.





Marp: Markdown Presentation Ecosystem

Create beautiful slide decks using an intuitive Markdown experience


Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Matplotlib makes easy things easy and hard things possible.

MIT AI model: GenCAD: 2D => 3D (image => CAD)

Guri Singh on X: "🚨BREAKING: MIT just dropped an AI model that converts photos into fully editable CAD programs and it quietly kills the $150/hour CAD modeling industry. It's called GenCAD. You give it an image. It gives you the complete parametric command sequence lines, arcs, extrusions ready https://t.co/RyufCrWLeY" / X

You give it an image. It gives you the complete parametric command sequence lines, arcs, extrusions ready for manufacturing. Not meshes. Not point clouds. Actual editable CAD. - Autoregressive transformers + diffusion models for image-to-CAD translation - Outperforms every existing method on unconditional and 
conditional CAD generation - Retrieves matching designs from 7K+ CAD databases using just a photo - Trained on 840K+ images - Generates multiple valid designs from a single input




Vectorizing images for OpenSCAD is best achieved by converting raster images (PNG/JPG) into vector SVG files using tools like Inkscape, then importing them with import() and linear_extrude(). The most common workflow involves tracing bitmaps in Inkscape to create paths, saving as SVG, and importing the vector data to produce 3D objects.
 
Recommended Workflow (Inkscape to OpenSCAD) Trace Bitmap: 

Open your image in Inkscape. Select the image and go to Path > Trace Bitmap to create a vector outline.
Clean Up: Delete the original raster image, leaving only the vector paths. Ensure the image is black and white for the best result.
Save as SVG: Save the file as a plain SVG or use a specialized extension to save as a DXF or SCAD file.
Import in OpenSCAD: Use the following command in OpenSCAD:

Watch a detailed tutorial on YouTube about the Bitmap2Vector process.

Read an Instructables guide on converting 2D images to 3D objects.

Lucid Robotaxi

one more 2-seat no driving wheel robotaxi design...

As usual, Tesla is trailblazing the future of transportation... 

 Lucid Motors Robotaxi: Ultra-Efficient Urban Transport - IEEE Spectrum