I'm using copilot on vscode and the agent is "Auto" which cost 10% less.

The results are enough for me and I'm not doing things that allow me to differentiate the output between ChatGPT, Claude and, the others.

The agents are more like the radio in my car, whenever I want music, I switch channel until I find something good enough.

If I'm really in need of something special, I'll use Spotify on my phone.

And sometimes, I just drive with the radio off.