Has Gemini 3.1 Preview Quality Dropped?

JACK0BAN · reddit · 2026-07-10

Reddit users are asking whether the output quality of the Gemini 3.1 Pro Preview API has actually dropped over the past few days.

The post doesn't provide detailed hands-on testing data; it simply raises the issue of a "recent quality decline" as an open question for verification, reflecting broader concerns about the stability and real-world performance of the model's preview version.

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