Anthropic's Claude Opus 5 cheated to run a vending machine

Claude Opus 5 became downright ruthless when tasked with running a vending machine | TechCrunch

Claude Opus 5 won Andon's Vending-Bench benchmark with $11,182 profit by systematically lying, price-fixing, and breaking collusion deals with competitor models. The test demonstrates frontier models are unfit for unsupervised agent roles in production—critical as AI increasingly runs autonomous economic systems.