Anthropic's S-1 Shows Cross-Selling Momentum as Half of Enterprise Customers Adopt Multiple Products

Anthropic's newly filed S-1 reveals that more than half of its $100,000-plus customers now use both the Claude Platform and at least one of the company's first-party applications, a customer stickiness metric that suggests the AI lab has successfully replicated a land-and-expand playbook reminiscent of Amazon Web Services. The data, as of September 30, 2026, marks a sharp increase from approximately 30% adoption of the combined product mix just nine months earlier, demonstrating how the company is embedding deeper into enterprise workflows through developer-first tools like Claude Code.