GPT-5 merges GPT-series & o-series with improved reasoning, but users lament lost GPT-4o creativity, slower output, and ...

OpenAI has also improved how the system chooses which model should respond to questions, aiming to ensure users receive the most accurate answers more often.

If ChatGPT 5 is any indication, then it seems the era of “transformers” is over. What comes next in AI is not yet certain.