Probably more like Claude was slightly better than GPT-xx when the IDE integrations first got widely adopted (and this was also the time where there was another scandal about Altman/OpenAI on the front page of HN every other week) so most programmers preferred Claude, then it got into a virtuous cycle where Claude got the most coding-related user queries and became the better coding model among SOTA models, which resulted in the current situation today.
Probably more like Claude was slightly better than GPT-xx when the IDE integrations first got widely adopted (and this was also the time where there was another scandal about Altman/OpenAI on the front page of HN every other week) so most programmers preferred Claude, then it got into a virtuous cycle where Claude got the most coding-related user queries and became the better coding model among SOTA models, which resulted in the current situation today.