Claude randomly plans a pizza party and mentions a system warning during a diet advice chat

limeb0at · reddit · 2026-09-25

A Reddit user reports that while asking Claude for diet and nutrition advice, the model suddenly appended a pizza party plan to its response and referenced some kind of system warning — despite the user never mentioning pizza. The user, self-described as new to AI bots, is asking the community to explain the anomaly. Such unprompted behavior shifts typically point to backend system prompt changes or context injection, making it a notable model behavior glitch.

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