This is the result of the winner-take-all (most) economy. If the very best LLM is 1.5x as good as good as the next-best, then pretty much everyone in the world will want to use the best one. That means billions of dollars of profit hang in the balance, so companies want to make sure they get the very best people (even if they have to pay hundreds of millions to get it). It's the same reason that sports stars, musicia…
> If the very best LLM is 1.5x as good as good as the next-best, then pretty much everyone in the world will want to use the best one
Is it? Gemini is arguably better than OAI in most cases but I'm not sure it's as popular among general public