Users report GPT-4.1 Sol model suddenly became dumb with irrelevant answers

M-M103 · reddit · 2026-08-21

Multiple users reported that the Sol (GPT-4.1) model on their GPT Plus accounts has started producing random, irrelevant, and low-quality answers in the last few hours. It is unclear if this is a widespread outage or an A/B test.

Related event: Users Report Sudden Quality Degradation in ChatGPT and Sol Models, Suspecting Routing to Smaller Model(9 posts)→

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