A new teammateDefaultModel setting allows users to configure the default model used when spawning teammate agents. Accessible through the /config settings UI under "Default teammate model".
Evidence
Teammate model config (search for "TeammateModel", "Default teammate model", "teammateDefaultModel")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed /config menu showing both the search cursor and list selection at the same time
