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Comment by kingkongjaffa

2 days ago

How does it change model mid conversation?

Does it spawn sub agents with different models or is it the same single conversation dynamically switching models?

Subagents indeed. This [0] was the post I was referencing, and here's the original suggested prompt:

> For all coding tasks use your judgement to decide an appropriate lower power model and run that in a subagent

As said, I tweaked it a little bit to my preference (mostly because it started delegating a bit too much) and had it placed in my global claude.md but that's the gist.

[0] https://simonwillison.net/2026/Jul/3/judgement/

Yes, sub-agents I believe. You need to pay to reload context if you switch the main conversation model effort.