I run several AI coding accounts across several CLIs. The problem was never capability. It was that I could not see which one had capacity, or whether the model I pinned was still real.
I run more than one AI coding account, across more than one CLI, on more than one machine. The failure mode is not dramatic. It is that at the moment I need to start a piece of work, I cannot see which account has capacity left or when its window resets, so the choice is a guess.
Sweech puts the accounts, the quota, the workspaces and the live sessions behind one local console. Usage and reset windows are visible before I commit work to an account rather than after. Profiles stay isolated from each other, and it deliberately never touches the default CLI directories, so the plain installs I use by hand keep working exactly as they did.
The part I have come to rely on most is how it treats a model id. A pinned model id is a claim, not a fact: I have carried a pin in config after the provider stopped serving the model it named, and nothing anywhere told me. Sweech tags every id with its evidence, marking whether the provider itself listed that id and when, or whether nobody has checked. Asking for a specific model is binding, so a route that cannot serve it is rejected outright rather than quietly answered by something else.
That last behaviour is the whole reason it earns its place. A router that silently substitutes a model hands you output you cannot reason about, because you no longer know what produced it. I would rather be told no.