I have been using GPT 4 daily for coding for probably six months, immediately started using Claude Opus when it came out. Opus is ahead of GPT4. There are times when I test both, but I am almost always solely using Opus. GPT4 laziness is still a huge issue, it seems like Anthropic specifically trained Opus not to be lazy.

The UX of GPT4 is better, you can cancel chats/edit old chats, etc. But the raw model is behind. You have to expect that OpenAI is working on something big, and is not afraid of lagging behind Anthropic for a while.