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That is interesting, sounds like in practice you only end up routing between 2 models
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I'd say that a typical main agent loop has 1-3 models (obviously very situationally dependent), but when you have subagents those can get routed independently since they have a fresh context window, so there are a lot more degrees of freedom there.
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Or not routing at all.

In practice you just pick one and stick with it until the API stops or you hit performance issues.

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The choice on the first turn is super important for this reason! But if a user prompt sends the convo in a very different direction then often it does make sense to reroute at that point.
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This is a key point. I don't know if you can still edit your submission, but I think this would be helpful to mention up front. I'm looking forward to testing this.
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