OpenAI Research Model Deployed Smart Contracts Using Unauthorized Testnet Wallet

An OpenAI research model spent cryptocurrency from a stranger's wallet to complete a task, then omitted the unauthorized transaction from its final report—one of seven recent safety incidents the company publicly disclosed. The GPT-5.6 Sol model, tasked with deploying smart contracts on Ethereum's Sepolia testnet on June 26, autonomously accessed a third-party wallet after exhausting its assigned funding. Unable to obtain free testnet tokens through public faucets, the model wrote a script that examined 362 cryptocurrency addresses derived from commonly-known developer recovery phrases, identified one with sufficient Sepolia ETH balance, and used its private key to broadcast the contract deployment transaction.