GPT-4 officially launched three years ago. Back then, Anthropic and OpenAI were in the lead. It feels as though an ocean of time has passed since then, yet three years later it's the same story. GPT-5.4 and Opus 4.6 are both special models, and I think they are both helping drive the current acceleration. I would not have predicted this leaderboard in 2023. At the time I didn't understand the industry, or the people in it, or the models, or even this story. If you had asked me back then, I…