Just use codex. A company that has not released any open weights models and goes after banning accounts and suing companies is not really the kind of company I want to give my money too. And gpt5.4 is the best model out there. Some people overthink on personality but I just want good code.
Just use opus. A company that has not rejected agreements with a “Department of War” and sanctions reasoning models to enable mass citizen surveillance and autonomous weapons deployment with no human intervention is not really the kind of company I want to give my money too. And opus4.6 is the best model out there. Some people overthink on personality but I just want good code.
ignoring gpt 5.4! I feel bad for people who have not even tried it. for the same 20$ I pay to openai and anthropic, I get significantly more from openai
GPT 5, 5.1 were bad which affected its reputation and most people went with Claude because it actually worked. There is no reason to switch if you are happy with Claude.
they dont change the model weights (no frontier lab does). if you have evals and all prompts, tool calls the same, I'm curious how you are saying performance decreased..
reply