RL by Subtraction: Everything We Stopped Needing
Four generations of RL, each one deleting a piece of the pipeline. The last one deleted the text, and stopped publishing.
Writing
Newest firstThe Math Remembers: How to Catch a Model Lying About Being Original
A city shipped a 'homegrown' AI; subtraction proved most of it was someone else's. The toolkit for catching model fraud, and its honest limits.
Your Coding Agent Has Amnesia: It's the Harness, Not the Model
The same model behaves like a genius on small tasks and a goldfish on big ones. The bottleneck isn't intelligence. It's memory, and memory lives in the harness.