I find the naming confusing. Haven't I already been using Gemini 2.5 Pro Preview for the past month? Or was that Experimental? Also how do i understand the Ope

I find the naming confusing. Haven't I already been using Gemini 2.5 Pro Preview for the past month? Or was that Experimental? Also how do i understand the OpenAI model names? I don't use OpenAI anymore since Ilya left but when looking at the benchmarks I'm constantly confused by their model names. We have semantic versioning - why do I need an AI or web search to understand your model name?