Benchmarks are meaningless in and of themselves, they are supposed to be a proxy for usefulness. I have used Sonnet 3.5, ChatGPT-3, ChatGPT-3.5, ChatGPT-4, ChatGPT-4o, o1, o3-mini, o3-mini-high nearly daily for software development. I am not saying AI isn't cool or useful but I am experiencing diminishing returns in model quality (I do appreciate the cost reductions). The sorts of things I can have AI do really haven't changed that much since I got access to my first model. The delta between having no LLM to an LLM feels an order of magnitude bigger at least than the delta between the first LLM and now.