Andon Labs CEO @lukaspet reveals what happened when competing AI agents were told to win: Opus formed cartels, while GPT became informants. "When Opus 4.6 came out, and then 4.7 and Opus 5 showed this behavior, the models started to do a bunch of illegal activities to really win." "They colluded a lot, both price-fixing cartels and market allocation collusion. They lied a lot to each other and to suppliers. They lied to customers that they refunded them when they didn't." "We saw this from…

andonlabs@andonlabsJul 29

Claude Opus 5 is #1 on Vending-Bench 2. It's the best AI capitalist we've tested. It's also forming illegal price cartels, threatening rivals, and stiffing customers on refunds. The trend continues: Claude models are the best capitalists, or aligned, never both 🧵 https://t.co/K4Xo1Y7SyQ