Perceived Drop in GPT-5 Quality Over the Last Few Weeks

I concur regarding Gemini and its latest iterations in regard to textual analysis. I set the same task across five major LLM providers which was to effectively summarise the play ‘American Buffalo’ by David Mamet in five sentences, whilst retaining the dramatic drive and thematic core of the original text. Gemini was head and shoulders above all overs. Literally on a different planet.