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Your Model Swapped Underneath You: A Zero-Budget Tripwire for Silent LLM Regressions

This story is from 2026-08-31. It is preserved in the archive; the latest stories are on the live feed.

The model you call today is not the model you called last week. Providers update weights, tweak sampling logic, and adjust default system prompts without ever sending you a changelog. Your integration tests stay green because they assert on happy paths, so the edge cases drift silently into product…

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  1. 2026-08-31 11:57 · DEV Community — AI
    Your Model Swapped Underneath You: A Zero-Budget Tripwire for Silent LLM Regressions

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