Copilot Pro usage of premium requests seems unusually high #2489
Description
I'm not sure if there's some subtlety I'm missing, but the first time I tried to use mux (directly hooked up to my copilot pro account), it blew through my entire premium requests budget within a single session in ~2 minutes, then stopped due to lack of credits. I have the Copilot Pro subscription through the opensource maintainer program. I was using the claude-opus-4.5 model, which charges at 3x the rate. The copilot docs state:
Copilot coding agent uses one premium request per session, multiplied by the model's rate. A session begins when you ask Copilot to create a pull request or make one or more changes to an existing pull request. In addition, each real-time steering comment made during an active session uses one premium request per session, multiplied by the model's rate.
I ran the same prompt through the Mux gateway on the claude-opus-4.6 model; it ran for ~1 hour and used ~$5 in credits.
I have previously used the same model in VSCode (via the copilot pane) for many hours and only used a fraction of my monthly allotment, so I suspect there's some problem with the way that Mux makes requests to the Copilot servers, counting every individual HTTP request as a premium request or something like that.