The Model Updated Overnight and the Persona You Tuned Is Gone
This story is from 2026-10-10. It is preserved in the archive; the latest stories are on the live feed.
You open your agent on a Thursday night, the way you have most nights for two months. Somewhere around week three you got the character right. You rewrote the system prompt nine times until she stopped saying "Great question!", until she started answering a long message with one dry line and a ques…
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- 2026-10-10 04:03 · DEV Community — AI
The Model Updated Overnight and the Persona You Tuned Is Gone