OpenAI is losing three senior executives: Kevin Weil (who led science research), Bill Peebles (Sora architect), and Srinivas Narayanan (enterprise applications CTO), all announcing departures Friday as the company refocuses on enterprise AI. Sora, which cost roughly $1 million per day in compute costs, was shut down last month, and OpenAI for Science is being folded into other research teams. The exits reflect Anthropic's competitive gains in enterprise, where Anthropic now holds 40% market share versus OpenAI's 27% after improvements to Claude Code.