Grok 4.5, based on our 1.5T V9 foundation model, with Cursor data added in supplemental training, is now in private beta at SpaceX & Tesla. Early evals show performance close to, perhaps exceeding Opus.
RL is continuing to significantly improve the model, and the Grok Build harness gets better every day.
Nice work by all those involved!
Completely trained from scratch new models will be released by @SpaceX every month this year.
Andrej Karpathy:
"The value of the system is in the edges, not the nodes."
In a short field note, he lays out 9 rules for a knowledge base that maintains itself. Claude keeps the notes.
Obsidian shows the graph.
3 layers, 3 owners. raw belongs to you and never gets edited. wiki belongs to the model. 1 schema file holds the rules for both.
This isn't RAG. RAG re-derives the answer every query and keeps nothing. Here your sources compile once into linked pages and compound.
You feed 1 source at a time. The model files it, links it, updates every neighbor it touches.
Start with 10 sources, not 10,000.
More useful than a $500 PKM course. Save this.
Claude + Obsidian stops being a folder. It becomes a second brain.