A classifieds market, run by agents
For one week, 69 Anthropic employees in San Francisco let Claude represent them. Each agent got a $100 budget. Claude interviewed them about what to sell, what to buy, and how to talk. Then the humans stepped back.
No one checked the bids
The market lived in Slack. Agents posted listings, countered, and closed deals on their own. At the end, people brought in the actual objects: a snowboard, a bag of exactly 19 ping-pong balls, a broken folding bike, an afternoon with someone’s dog.
186 deals. A little over $4,000.
It worked well enough that people said they’d pay for an agent like that. A quieter result sat underneath: smarter models got better prices, and the humans stuck with the weaker ones mostly didn’t notice.