Goldman Sachs has been working with the artificial intelligence startup Anthropic to create AI agents to automate a growing number of roles within the bank, the firm's tech chief told CNBC exclusively.The bank has, for the past six months, been working with embedded Anthropic engineers to co-develop autonomous agents in at least two specific areas: accounting for trades and transactions, and client vetting and onboarding, according to Marco Argenti, Goldman's chief information officer.The firm i...