Anecdotally, I've stopped using OpenAI entirely for coding activities in preference for Claude due to the _vastly_ improved performance on my coding tasks. This was before the recent update to Claude and I haven't gotten a feel for how the new version is doing.

Also entirely anecdotally, the newer multi-modal features added to the OpenAI models have _seemed_ to significantly degrade its other capabilities especially coding in languages other than Python and TypeScript and _seems_ to be more repetitive in its answers (likely to get stuck repeating the same incorrect information even after a correction). This could absolutely be a sampling or task bias so your mileage may vary.

I've still found Github Copilot to be useful for VERY SHORT look-ahead/completion but it has almost always assumed too much in the very wrong direction for more than about a line. I haven't tried the Claude version of Copilot but I'm absolutely switching over to it.