Stable Endpoint Doesn't Mean Stable Behavior: GPT-chat-latest Underlying Model Changes Require Regression Testing
WirelessLife · x · 2026-08-15
Developer WirelessLife points out that a stable API endpoint like GPT-chat-latest does not guarantee stable model behavior, as the underlying model can change. This makes evals a release requirement. He asks: what do you regression-test before shipping AI updates?
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