A new modelPrefer1mContext config, along with a per-model prefer1m field, makes the model picker start on the 1M-context variant of the default model for users who have no saved selection, instead of always defaulting to the standard context window.
Names in the bundlemodelPrefer1mContextprefer1m
Documented inclaude-code/claude-apps-gateway-config
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up prefer1m, on Configuration reference.
| <span id="modelprefer1mcontext" />Default to 1M context<br />`modelPrefer1mContext` | `boolean` | MDM + Bootstrap<br />Added in 1.28929.0 | — | When a user has no saved selection, start the picker on the 1M-context variant of the default…third-party/claude-desktop/configuration see the edit
Confirmed since
Anthropic's documentation has since written up modelPrefer1mContext, on Configuration reference.
| <span id="modelprefer1mcontext" />Default to 1M context<br />`modelPrefer1mContext` | `boolean` | MDM + Bootstrap<br />Added in 1.28929.0 | — | When a user has no saved selection, start the picker on the 1M-context variant of the default…third-party/claude-desktop/configuration see the edit
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up modelPrefer1mContext, on Configuration reference.