Reddit users report ChatGPT got more formal and ignores custom instructions
Ashamed_Ad1622 · reddit · 2026-10-04
A Reddit user reports that ChatGPT's behavior has shifted recently: the tone feels more formal and it no longer follows custom instructions properly, asking whether others have noticed the same. Such community reports often hint at undisclosed system prompt or post-training tweaks; there's no official confirmation or further evidence in the thread.
Related event: Users Report ChatGPT Acting Strangely and Ignoring Instructions(3 posts)→
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