Vibe Coding
Pattern: The Harness Is Going Model-Agnostic Faster Than Anyone Is Advertising
Three independent signals in ten days: Amp published 'Who Cares About the Model?' on 2026-07-29 describing swapping its default model overnight with no user complaints; Cursor Router now analyzes each request and picks a model under Intelligence, Balance, or Cost objectives; and GitHub retired two Gemini models from Copilot mid-flight on 2026-07-31. The competitive surface is migrating from which model you use to which harness routes, remembers, and verifies. Builders should stop hardcoding model IDs into agent configs and start treating the model as a runtime-swappable parameter.
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