Google commoditized its complements : free maps, free email, free browsers, a free mobile OS. They removed every toll booth between the user & search.
| Category | The Castle | The Complement | The Play |
|---|---|---|---|
| Search | Ad Revenue | Original Search Engine | The technical leap that started the feedback loop |
| User Data | Gmail (2004) | Turned paid storage into a free utility; killed Hotmail | |
| Maps | Local Ad Intent | Google Maps (2005) | Made GPS hardware & licensing free to own local search data |
| Mobile OS | Search Access | Android (2007) | Gave away an OS to prevent Apple/Microsoft from blocking search |
| Browsers | Search Speed | Chrome (2008) | Built a free, fast browser to increase total web usage |
Anthropic’s strategy parallels Google’s, a natural extension of the strength of the core product, the model.
| Product | Launch | Category Attacked | The Play |
|---|---|---|---|
| MCP1 | Nov 2024 | Data Integration | Open standard for AI-to-data connections; destroys walled garden lock-in |
| Claude Code Security2 | Feb 2026 | AppSec | AI-powered vulnerability scanning; found 500+ bugs in production OSS |
| Claude Cowork3 | Jan 2026 | File/Task Orchestration | Agentic file management without dedicated UI |
| Claude Design4 | Apr 2026 | UI/UX Design | Prompt-to-prototype; reads codebases & auto-generates design systems |
| Interactive Apps5 | Jan 2026 | Productivity Suite | Embeds Slack, Figma, Asana inside Claude |
For Anthropic, more usage across diverse tasks means more data, which produces a smarter model—just as more queries improved Google search.
The commoditization flywheel : both companies give away complements to drive usage of the core.
The risk of this strategy to the ecosystem is that it makes previously attractive categories no longer viable. Commoditizing the complement does not demand a best-in-class replacement. A free, good-enough product is enough to change market dynamics.
Some categories never developed a competitive response to this strategy : email, advertising infrastructure, user-generated video.
But plenty of categories survived through specialization or direct competition : cloud, travel, domain registration, social networking. Commoditizing complements doesn’t always work because focus is scarce even for the largest, fastest growing businesses.
A startup’s greatest advantage is that it can outfocus the giant. But it needs to pick the right place to pressure.