settings document.
The AI limits exist because model capabilities keep growing — instead of hardcoded caps scattered across the UI and server, each ceiling is one settings value that the client sliders and server clamps all honor. Effective values still resolve through the normal chains (request → model endpoint → app settings defaults); the limits only cap them. See the AI options resolution design in the platform repo for details.
To modify a hidden setting, edit the settings document directly in Cosmos DB Data Explorer:
POST /server/settings/refresh-appsettings (admin only), or restart the app service.