Anthropic's Leaked Code Reveals the Radical Strategy That Makes Claude Code a $2.5 Billion AI Tool

In what the company says was a simple packaging mistake, parts of the code behind Claude Code, its fast-growing AI coding product, were briefly made public early Tuesday morning. Within hours, developers had downloaded, shared, and begun dissecting the roughly 500,000 lines of code across GitHub, Fortune reported.

Claude Code is already generating an estimated $2.5 billion in annual recurring revenue, with enterprise customers making up the vast majority of that growth. Now, competitors may have an unusually detailed roadmap for how it works.

Anthropic confirmed the incident in a statement to Fortune, emphasizing that no customer data or credentials were exposed. The company described the issue as "human error," not a security breach, and said it is working to prevent similar mistakes.