Fans lined up for "thinking" caps from Anthropic, and OpenAI handed out specialty token plaques. AI merchandise is in a boom period, as fans flock to show their allegiance to different companies.

"Thinking" caps are dotting the West Village — and no, it's not the merchandise for a new René Descartes fan club. The baseball caps come from Anthropic, which hosted a buzzy pop-up with the Air Mail ...