You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
InsightsArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
A subagent is a helper Claude starts to work on part of a task. Claude Code's suggestion about a subagent's cost used to say to give it a cheaper model. It now says to check which model that subagent uses. The guidance behind it now says to change the model only if a cheaper one fits the work.
Why
The suggestion no longer pushes you toward a cheaper model by default, so you are less likely to swap to one that cannot do the job.