Anthropic is _unquestionably_ ahead product wise because of their agentic coding tools, but they are not _years_ ahead. In particular, their advantage is in the harness, which is not hard to replicate!
It's not just the CC harness. The models are fundamentally better.
Lol if CC is the advantage that's the larges indictment of AI coding there is. Don't get me wrong CC gives me good results, but I very much doubt their tooling is great, they just spew tokens at the model and the model is quite good at making sense of it and following through.
I suspect they have better RL setup for coding that makes their models better at coding than GPT/Gemini in practice.