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8.2The Headline Number First
Microsoft's published benchmark for a typical browser automation task:
| Transport | Tokens per task |
|---|---|
| Playwright MCP | ~114,000 |
| Playwright CLI | ~27,000 |
| Savings | ~4x (up to ~10x reported on long sessions) |
The rest of this chapter explains where those tokens go — because in an architecture interview, quoting a benchmark is table stakes; explaining the mechanism is what gets you hired.