Amazon’s engineering teams have found cases where moving work from hand-written code to AI models blew through project budgets, including $1.8 million spent running Anthropic’s Claude Sonnet on a job that never shipped. Senior engineers laid the cases out for staff at an internal meeting on July 28, 2026 and described the results as “catastrophically expensive,” the Financial Times reported, citing multiple people familiar with the presentation. They told colleagues they are now building…