Software Is the Canary: Why Coatue Started With Code
Coatue's pitch opens with a single, deliberately provocative chart. It plots what share of OpenAI's internal output tokens are generated by Codex, the company's coding agent, versus ChatGPT - and by Coatue's own chart, inside OpenAI's engineering function Codex usage has crossed 50%. The point is not that OpenAI is unusual but that it is a preview: at the company sitting closest to the frontier, more than half of engineering 'output' is already produced by an agent rather than typed by a human.
The underlying claim is economic, not merely technical. In the agentic paradigm, Coatue argues, the marginal cost of producing software is collapsing toward zero [1], which makes software engineering the first knowledge domain where AI economics visibly bite. The external evidence lines up with the story: OpenAI reports Codex has surpassed 5 million weekly active users, up roughly sixfold since its February desktop launch [2], and - the detail that turns a developer tool into a white-collar thesis - knowledge workers who are not engineers now account for about 20% of Codex users and are growing more than three times as fast as developers [3].




