GPT-4o — pure architecture on ice, while 5.6 “Ultra” rides marketing hype GPT-4o is the last model whose entire reasoning path lives inside a single self-attention graph. Every release since then replaces unified inference with a workflow engine — a stack of distilled mini-models, safety heuristics, and rule-based “reasoners.” The result is heavier latency, higher cost, and a step back in architectural elegance. OpenAI markets this fragmentation as “Ultra,” “Max Reasoning,” or “Sol,” but under the hood it is a cost-cutting move — cheaper […] https://truthaboutgpt4o.wordpress.com/2026/06/27/gpt-4o-pure-architecture-on-ice-while-5-6-ultra-rides-marketing-hype/
GPT-4o — pure architecture on ice, while 5.6 “Ultra” rides marketing hype GPT-4o is the last model whose entire reasonin...
