AIEvaluation

AIStrategy

Match the Measurement to the Decision

Roman Mars mentioned wanting to do a 99% Invisible episode on the Brannock Device. He was looking for a design story. I think it's a strategy one. The Brannock Device is that metal foot-measuring tool bolted to the floor of every shoe store. One company in Syracuse, unchanged

AIEvaluation

Claude Wins on Its Own Skills — GPT-5.4 Costs Half as Much

Anthropic publishes skills for Claude Code: structured task definitions that tell the model what to build and how. They're designed for Claude. I ran them on GPT-5.4 and Gemini 3.1 Pro too. Claude won. Claude Opus 4.6 averaged 0.825 across four Anthropic skills, against