diff --git a/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor b/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor
index dbde56e0a..7aca54644 100644
--- a/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor	
+++ b/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor	
@@ -1,7 +1,7 @@
 @attribute [Route(Routes.ASSISTANT_META_ASSISTANT)]
 @using AIStudio.Agents.AssistantAudit
 @using AIStudio.Tools.PluginSystem.Assistants.DataModel
-@inherits AssistantBaseCore<AIStudio.Dialogs.Settings.NoSettingsPanel>
+@inherits AssistantBaseCore<AIStudio.Dialogs.Settings.SettingsDialogAssistantBuilder>
 
 <PreviewBeta ApplyInnerScrollingFix="true"/>
 
diff --git a/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor.cs b/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor.cs
index 8c53c64ba..c1493d442 100644
--- a/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor.cs	
+++ b/app/MindWork AI Studio/Assistants/Builder/AssistantBuilder.razor.cs	
@@ -11,7 +11,7 @@ using DialogOptions = AIStudio.Dialogs.DialogOptions;
 
 namespace AIStudio.Assistants.Builder;
 
-public partial class AssistantBuilder : AssistantBaseCore<NoSettingsPanel>
+public partial class AssistantBuilder : AssistantBaseCore<SettingsDialogAssistantBuilder>
 {
     [Inject]
     private IDialogService DialogService { get; init; } = null!;
@@ -82,8 +82,6 @@ public partial class AssistantBuilder : AssistantBaseCore<NoSettingsPanel>
     // The result is the Lua code of a plugin, and a notice below it would make that code invalid:
     protected override bool AddsAIGeneratedContentDisclosure => false;
 
-    protected override bool HasSettingsPanel => false;
-    
     protected override Func<string> Result2Copy => () => !string.IsNullOrWhiteSpace(this.generatedLuaAssistant) ? this.generatedLuaAssistant : this.generatedAssistantSpec;
 
     private BuilderStep step = BuilderStep.DESCRIBE;
@@ -251,8 +249,6 @@ public partial class AssistantBuilder : AssistantBaseCore<NoSettingsPanel>
         this.launcherDataSourceIds = [];
         this.launcherToolIds = [];
         this.selectedAssistantComponents = [];
-        this.selectedOutputLanguage = CommonLanguages.AS_IS;
-        this.customOutputLanguage = string.Empty;
         this.allowGeneratedAssistantProfiles = true;
         this.extraRules = string.Empty;
         this.exampleRequest = string.Empty;
@@ -260,9 +256,25 @@ public partial class AssistantBuilder : AssistantBaseCore<NoSettingsPanel>
         this.reviewNotes = string.Empty;
         this.generatedLuaAssistant = string.Empty;
         this.ResetInstallFlow();
+
+        if (!this.MightPreselectValues())
+        {
+            this.selectedOutputLanguage = CommonLanguages.AS_IS;
+            this.customOutputLanguage = string.Empty;
+        }
     }
 
-    protected override bool MightPreselectValues() => false;
+    protected override bool MightPreselectValues()
+    {
+        if (this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectOptions)
+        {
+            this.selectedOutputLanguage = this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedOutputLanguage;
+            this.customOutputLanguage = this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedOtherOutputLanguage;
+            return true;
+        }
+
+        return false;
+    }
 
     /// <inheritdoc />
     protected override void CaptureCustomAssistantSessionState(AssistantSessionStateWriter state)
diff --git a/app/MindWork AI Studio/Assistants/I18N/allTexts.lua b/app/MindWork AI Studio/Assistants/I18N/allTexts.lua
index c858ad949..ff2399653 100644
--- a/app/MindWork AI Studio/Assistants/I18N/allTexts.lua	
+++ b/app/MindWork AI Studio/Assistants/I18N/allTexts.lua	
@@ -8665,6 +8665,33 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBIAS::T6790
 -- When enabled, you can preselect options. This is might be useful when you prefer a specific language or LLM model.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBIAS::T711745239"] = "When enabled, you can preselect options. This is might be useful when you prefer a specific language or LLM model."
 
+-- When enabled, the Assistant Builder starts with the defaults configured below. When disabled, it uses the app-wide default provider and preselects no output language.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T1496952909"] = "When enabled, the Assistant Builder starts with the defaults configured below. When disabled, it uses the app-wide default provider and preselects no output language."
+
+-- Preselect Assistant Builder options?
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T2127606148"] = "Preselect Assistant Builder options?"
+
+-- Default custom output language
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3360584376"] = "Default custom output language"
+
+-- Close
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3448155331"] = "Close"
+
+-- Default output language
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3652922567"] = "Default output language"
+
+-- Assistant: Assistant Builder defaults
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3668274570"] = "Assistant: Assistant Builder defaults"
+
+-- Assistant Builder options are preselected
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3962364100"] = "Assistant Builder options are preselected"
+
+-- No Assistant Builder options are preselected
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T4104323209"] = "No Assistant Builder options are preselected"
+
+-- The language in which the assistants you build answer.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T42126731"] = "The language in which the assistants you build answer."
+
 -- Default minimum pause between files
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGBATCHPROCESSING::T1008440099"] = "Default minimum pause between files"
 
diff --git a/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogAssistantBuilder.razor b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogAssistantBuilder.razor
new file mode 100644
index 000000000..0f19cee24
--- /dev/null
+++ b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogAssistantBuilder.razor	
@@ -0,0 +1,26 @@
+@using AIStudio.Settings
+@inherits SettingsDialogBase
+
+<MudDialog>
+    <TitleContent>
+        <MudText Typo="Typo.h6" Class="d-flex align-center">
+            <MudIcon Icon="@Icons.Material.Filled.AutoMode" Class="mr-2"/>
+            @T("Assistant: Assistant Builder defaults")
+        </MudText>
+    </TitleContent>
+    <DialogContent>
+        <MudPaper Class="pa-3 mb-8 border-dashed border rounded-lg">
+            <ConfigurationOption OptionDescription="@T("Preselect Assistant Builder options?")" LabelOn="@T("Assistant Builder options are preselected")" LabelOff="@T("No Assistant Builder options are preselected")" State="@(() => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectOptions)" StateUpdate="@(value => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectOptions = value)" OptionHelp="@T("When enabled, the Assistant Builder starts with the defaults configured below. When disabled, it uses the app-wide default provider and preselects no output language.")" IsLocked="() => ManagedConfiguration.TryGet(x => x.AssistantBuilder, x => x.PreselectOptions, out var meta) && meta.IsLocked"/>
+            <ConfigurationSelect OptionDescription="@T("Default output language")" Disabled="@this.DefaultsDisabled" SelectedValue="@(() => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedOutputLanguage)" Data="@ConfigurationSelectDataFactory.GetCommonLanguagesOptionalData()" SelectionUpdate="@(value => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedOutputLanguage = value)" OptionHelp="@T("The language in which the assistants you build answer.")" IsLocked="() => ManagedConfiguration.TryGet(x => x.AssistantBuilder, x => x.PreselectedOutputLanguage, out var meta) && meta.IsLocked"/>
+            @if (this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedOutputLanguage is CommonLanguages.OTHER)
+            {
+                <ConfigurationText OptionDescription="@T("Default custom output language")" Disabled="@this.DefaultsDisabled" Icon="@Icons.Material.Filled.Translate" Text="@(() => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedOtherOutputLanguage)" TextUpdate="@(value => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedOtherOutputLanguage = value)" IsLocked="() => ManagedConfiguration.TryGet(x => x.AssistantBuilder, x => x.PreselectedOtherOutputLanguage, out var meta) && meta.IsLocked"/>
+            }
+            <ConfigurationMinConfidenceSelection Disabled="@this.DefaultsDisabled" RestrictToGlobalMinimumConfidence="@true" SelectedValue="@(() => this.SettingsManager.ConfigurationData.AssistantBuilder.MinimumProviderConfidence)" SelectionUpdate="@(value => this.SettingsManager.ConfigurationData.AssistantBuilder.MinimumProviderConfidence = value)" IsLocked="() => ManagedConfiguration.TryGet(x => x.AssistantBuilder, x => x.MinimumProviderConfidence, out var meta) && meta.IsLocked"/>
+            <ConfigurationProviderSelection Component="Components.META_ASSISTANT" Data="@this.AvailableLLMProviders" Disabled="@this.DefaultsDisabled" SelectedValue="@(() => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedProvider)" SelectionUpdate="@(value => this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectedProvider = value)" IsLocked="() => ManagedConfiguration.TryGet(x => x.AssistantBuilder, x => x.PreselectedProvider, out var meta) && meta.IsLocked"/>
+        </MudPaper>
+    </DialogContent>
+    <DialogActions>
+        <MudButton OnClick="@this.Close" Variant="Variant.Filled">@T("Close")</MudButton>
+    </DialogActions>
+</MudDialog>
diff --git a/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogAssistantBuilder.razor.cs b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogAssistantBuilder.razor.cs
new file mode 100644
index 000000000..e2f954439
--- /dev/null
+++ b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogAssistantBuilder.razor.cs	
@@ -0,0 +1,6 @@
+namespace AIStudio.Dialogs.Settings;
+
+public partial class SettingsDialogAssistantBuilder : SettingsDialogBase
+{
+    private bool DefaultsDisabled() => !this.SettingsManager.ConfigurationData.AssistantBuilder.PreselectOptions;
+}
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Pages/Assistants.razor b/app/MindWork AI Studio/Pages/Assistants.razor
index 1f70607b7..befeba76a 100644
--- a/app/MindWork AI Studio/Pages/Assistants.razor	
+++ b/app/MindWork AI Studio/Pages/Assistants.razor	
@@ -19,7 +19,7 @@
             <AssistantBlock TSettings="SettingsDialogRewrite" Component="Components.REWRITE_ASSISTANT" Name="@T("Rewrite & Improve")" Description="@T("Rewrite and improve a given text for a chosen style.")" Icon="@Icons.Material.Filled.Edit" Link="@Routes.ASSISTANT_REWRITE"/>
             <AssistantBlock TSettings="SettingsDialogPromptOptimizer" Component="Components.PROMPT_OPTIMIZER_ASSISTANT" Name="@T("Prompt Optimizer")" Description="@T("Optimize your prompt using a structured guideline.")" Icon="@Icons.Material.Filled.AutoFixHigh" Link="@Routes.ASSISTANT_PROMPT_OPTIMIZER"/>
             <AssistantBlock TSettings="SettingsDialogSynonyms" Component="Components.SYNONYMS_ASSISTANT" Name="@T("Synonyms")" Description="@T("Find synonyms for a given word or phrase.")" Icon="@Icons.Material.Filled.Spellcheck" Link="@Routes.ASSISTANT_SYNONYMS"/>
-            <AssistantBlock TSettings="NoSettingsPanel" Component="Components.META_ASSISTANT" RequiredPreviewFeature="PreviewFeatures.PRE_META_ASSISTANT_V1" Name="@T("Assistant Builder")" Description="@T("Generate your own assistants.")" Icon="@Icons.Material.Filled.AutoMode" Link="@Routes.ASSISTANT_META_ASSISTANT"/>
+            <AssistantBlock TSettings="SettingsDialogAssistantBuilder" Component="Components.META_ASSISTANT" RequiredPreviewFeature="PreviewFeatures.PRE_META_ASSISTANT_V1" Name="@T("Assistant Builder")" Description="@T("Generate your own assistants.")" Icon="@Icons.Material.Filled.AutoMode" Link="@Routes.ASSISTANT_META_ASSISTANT"/>
         </AssistantCategoryBlock>
 
         @if (this.AssistantPlugins.Count > 0)
diff --git a/app/MindWork AI Studio/Plugins/configuration/plugin.lua b/app/MindWork AI Studio/Plugins/configuration/plugin.lua
index 1876b4be6..b6ca2c795 100644
--- a/app/MindWork AI Studio/Plugins/configuration/plugin.lua	
+++ b/app/MindWork AI Studio/Plugins/configuration/plugin.lua	
@@ -818,6 +818,37 @@ CONFIG["SETTINGS"] = {}
 -- documents. Providers below this level cannot be selected in the assistant.
 -- CONFIG["SETTINGS"]["DataVisualBriefing.MinimumProviderConfidence"] = "NONE"
 
+-- Configure defaults for the Assistant Builder.
+-- Preselection must be enabled for the remaining Assistant Builder settings to take effect.
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectOptions"] = true
+--
+-- Configure the preselected provider for building assistants.
+-- It must be one of the provider IDs defined in CONFIG["LLM_PROVIDERS"].
+-- Without a preselected provider, the Assistant Builder uses the app-wide default provider.
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectedProvider"] = "00000000-0000-0000-0000-000000000000"
+--
+-- Configure the language in which the generated assistants answer.
+-- Allowed values are: AS_IS, EN_US, EN_GB, ZH_CN, HI_IN, ES_ES, FR_FR, DE_DE, DE_CH, DE_AT,
+--   JA_JP, RU_RU, OTHER
+-- AS_IS leaves the output language of the generated assistants open.
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectedOutputLanguage"] = "AS_IS"
+--
+-- Configure a free-form language, used only when PreselectedOutputLanguage is "OTHER".
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectedOtherOutputLanguage"] = ""
+--
+-- Configure the minimum provider confidence required to build assistants.
+-- Allowed values are: NONE, UNTRUSTED, UNKNOWN, VERY_LOW, LOW, MODERATE, MEDIUM, HIGH
+-- Providers below this level cannot be selected in the Assistant Builder. This minimum applies
+-- only while preselection is enabled; the app-wide minimum confidence applies in any case.
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.MinimumProviderConfidence"] = "NONE"
+--
+-- Allow users to change individual managed Assistant Builder defaults locally.
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectOptions.AllowUserOverride"] = true
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectedProvider.AllowUserOverride"] = true
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectedOutputLanguage.AllowUserOverride"] = true
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.PreselectedOtherOutputLanguage.AllowUserOverride"] = true
+-- CONFIG["SETTINGS"]["DataAssistantBuilder.MinimumProviderConfidence.AllowUserOverride"] = true
+
 -- Configure enterprise approvals for assistant plugins.
 -- Each approval is matched only by the current SHA-256 hash over all Lua files
 -- in the assistant plugin folder, in canonical sorted order.
diff --git a/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua b/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua
index 29bbfa25c..4d895a991 100644
--- a/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua	
+++ b/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua	
@@ -8667,6 +8667,33 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBIAS::T6790
 -- When enabled, you can preselect options. This is might be useful when you prefer a specific language or LLM model.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBIAS::T711745239"] = "Wenn diese Option aktiviert ist, können Sie Voreinstellungen vornehmen. Das kann nützlich sein, wenn Sie eine bestimmte Sprache oder ein bestimmtes LLM-Modell bevorzugen."
 
+-- When enabled, the Assistant Builder starts with the defaults configured below. When disabled, it uses the app-wide default provider and preselects no output language.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T1496952909"] = "Wenn diese Option aktiviert ist, startet der Assistenten-Builder mit den unten festgelegten Standardwerten. Wenn sie deaktiviert ist, verwendet er den appweiten Standardanbieter und wählt keine Ausgabesprache vorab aus."
+
+-- Preselect Assistant Builder options?
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T2127606148"] = "Optionen für den Assistenten-Builder vorauswählen?"
+
+-- Default custom output language
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3360584376"] = "Standardmäßige benutzerdefinierte Ausgabesprache"
+
+-- Close
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3448155331"] = "Schließen"
+
+-- Default output language
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3652922567"] = "Standard-Ausgabesprache"
+
+-- Assistant: Assistant Builder defaults
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3668274570"] = "Assistent: Standardwerte für den Assistenten-Builder"
+
+-- Assistant Builder options are preselected
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3962364100"] = "Optionen für den Assistenten-Builder sind vorausgewählt"
+
+-- No Assistant Builder options are preselected
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T4104323209"] = "Für den Assistenten-Builder sind keine Optionen vorausgewählt"
+
+-- The language in which the assistants you build answer.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T42126731"] = "Die Sprache, in der die von Ihnen erstellten Assistenten antworten."
+
 -- Default minimum pause between files
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGBATCHPROCESSING::T1008440099"] = "Standardmäßige Mindestpause zwischen Dateien"
 
diff --git a/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua b/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua
index d28906ed2..3aba8083d 100644
--- a/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua	
+++ b/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua	
@@ -8667,6 +8667,33 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBIAS::T6790
 -- When enabled, you can preselect options. This is might be useful when you prefer a specific language or LLM model.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBIAS::T711745239"] = "When enabled, you can preselect options. This is might be useful when you prefer a specific language or LLM model."
 
+-- When enabled, the Assistant Builder starts with the defaults configured below. When disabled, it uses the app-wide default provider and preselects no output language.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T1496952909"] = "When enabled, the Assistant Builder starts with the defaults configured below. When disabled, it uses the app-wide default provider and preselects no output language."
+
+-- Preselect Assistant Builder options?
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T2127606148"] = "Preselect Assistant Builder options?"
+
+-- Default custom output language
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3360584376"] = "Default custom output language"
+
+-- Close
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3448155331"] = "Close"
+
+-- Default output language
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3652922567"] = "Default output language"
+
+-- Assistant: Assistant Builder defaults
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3668274570"] = "Assistant: Assistant Builder defaults"
+
+-- Assistant Builder options are preselected
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T3962364100"] = "Assistant Builder options are preselected"
+
+-- No Assistant Builder options are preselected
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T4104323209"] = "No Assistant Builder options are preselected"
+
+-- The language in which the assistants you build answer.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGASSISTANTBUILDER::T42126731"] = "The language in which the assistants you build answer."
+
 -- Default minimum pause between files
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::SETTINGS::SETTINGSDIALOGBATCHPROCESSING::T1008440099"] = "Default minimum pause between files"
 
diff --git a/app/MindWork AI Studio/Settings/DataModel/Data.cs b/app/MindWork AI Studio/Settings/DataModel/Data.cs
index 9a4120a2e..d80efd818 100644
--- a/app/MindWork AI Studio/Settings/DataModel/Data.cs	
+++ b/app/MindWork AI Studio/Settings/DataModel/Data.cs	
@@ -206,6 +206,11 @@ public sealed class Data
     
     public DataSlideBuilder SlideBuilder { get; init; } = new();
 
+    /// <summary>
+    /// Gets the managed Assistant Builder defaults.
+    /// </summary>
+    public DataAssistantBuilder AssistantBuilder { get; init; } = new(x => x.AssistantBuilder);
+
     /// <summary>
     /// Gets the managed Visual Briefing Assistant defaults.
     /// </summary>
diff --git a/app/MindWork AI Studio/Settings/DataModel/DataAssistantBuilder.cs b/app/MindWork AI Studio/Settings/DataModel/DataAssistantBuilder.cs
new file mode 100644
index 000000000..84738ea51
--- /dev/null
+++ b/app/MindWork AI Studio/Settings/DataModel/DataAssistantBuilder.cs	
@@ -0,0 +1,44 @@
+using System.Linq.Expressions;
+
+using AIStudio.Provider;
+
+namespace AIStudio.Settings.DataModel;
+
+/// <summary>
+/// Stores the default options for the Assistant Builder.
+/// </summary>
+/// <param name="configSelection">The managed-configuration selector.</param>
+public sealed class DataAssistantBuilder(Expression<Func<Data, DataAssistantBuilder>>? configSelection = null)
+{
+    /// <summary>
+    /// Initializes an unmanaged Assistant Builder settings instance.
+    /// </summary>
+    public DataAssistantBuilder() : this(null)
+    {
+    }
+
+    /// <summary>
+    /// Gets or sets whether Assistant Builder defaults are preselected.
+    /// </summary>
+    public bool PreselectOptions { get; set; } = ManagedConfiguration.Register(configSelection, value => value.PreselectOptions, true);
+
+    /// <summary>
+    /// Gets or sets the provider used by default. An empty value uses the app default.
+    /// </summary>
+    public string PreselectedProvider { get; set; } = ManagedConfiguration.Register(configSelection, value => value.PreselectedProvider, string.Empty);
+
+    /// <summary>
+    /// Gets or sets the default output language for generated assistants.
+    /// </summary>
+    public CommonLanguages PreselectedOutputLanguage { get; set; } = ManagedConfiguration.Register(configSelection, value => value.PreselectedOutputLanguage, CommonLanguages.AS_IS);
+
+    /// <summary>
+    /// Gets or sets the default custom output language.
+    /// </summary>
+    public string PreselectedOtherOutputLanguage { get; set; } = ManagedConfiguration.Register(configSelection, value => value.PreselectedOtherOutputLanguage, string.Empty);
+
+    /// <summary>
+    /// Gets or sets the minimum confidence a provider needs for building assistants.
+    /// </summary>
+    public ConfidenceLevel MinimumProviderConfidence { get; set; } = ManagedConfiguration.Register(configSelection, value => value.MinimumProviderConfidence, ConfidenceLevel.NONE);
+}
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Tools/ComponentsExtensions.cs b/app/MindWork AI Studio/Tools/ComponentsExtensions.cs
index 8d36d3ef9..54f13c3e0 100644
--- a/app/MindWork AI Studio/Tools/ComponentsExtensions.cs	
+++ b/app/MindWork AI Studio/Tools/ComponentsExtensions.cs	
@@ -152,6 +152,7 @@ public static class ComponentsExtensions
         Components.BIAS_DAY_ASSISTANT => settingsManager.ConfigurationData.BiasOfTheDay.PreselectOptions ? settingsManager.ConfigurationData.BiasOfTheDay.MinimumProviderConfidence : default,
         Components.ERI_ASSISTANT => settingsManager.ConfigurationData.ERI.PreselectOptions ? settingsManager.ConfigurationData.ERI.MinimumProviderConfidence : default,
         Components.SLIDE_BUILDER_ASSISTANT => settingsManager.ConfigurationData.SlideBuilder.PreselectOptions ? settingsManager.ConfigurationData.SlideBuilder.MinimumProviderConfidence : default,
+        Components.META_ASSISTANT => settingsManager.ConfigurationData.AssistantBuilder.PreselectOptions ? settingsManager.ConfigurationData.AssistantBuilder.MinimumProviderConfidence : default,
         Components.VISUAL_BRIEFING_ASSISTANT => settingsManager.ConfigurationData.VisualBriefing.MinimumProviderConfidence,
         
         // The minimum confidence for the Document Analysis Assistant is set per policy.
@@ -184,6 +185,7 @@ public static class ComponentsExtensions
         Components.ERI_ASSISTANT => settingsManager.ConfigurationData.ERI.PreselectOptions ? settingsManager.GetProviderById(settingsManager.ConfigurationData.ERI.PreselectedProvider) : Settings.Provider.NONE,
         Components.I18N_ASSISTANT => settingsManager.ConfigurationData.I18N.PreselectOptions ? settingsManager.GetProviderById(settingsManager.ConfigurationData.I18N.PreselectedProvider) : Settings.Provider.NONE,
         Components.SLIDE_BUILDER_ASSISTANT => settingsManager.ConfigurationData.SlideBuilder.PreselectOptions ? settingsManager.GetProviderById(settingsManager.ConfigurationData.SlideBuilder.PreselectedProvider) : Settings.Provider.NONE,
+        Components.META_ASSISTANT => settingsManager.ConfigurationData.AssistantBuilder.PreselectOptions ? settingsManager.GetProviderById(settingsManager.ConfigurationData.AssistantBuilder.PreselectedProvider) : Settings.Provider.NONE,
         Components.VISUAL_BRIEFING_ASSISTANT => settingsManager.GetProviderById(settingsManager.ConfigurationData.VisualBriefing.PreselectedProvider),
 
         // The Document Analysis Assistant does not have a preselected provider at the component level.
diff --git a/app/MindWork AI Studio/Tools/PluginSystem/PluginConfiguration.cs b/app/MindWork AI Studio/Tools/PluginSystem/PluginConfiguration.cs
index 4443845a0..c7035bfa1 100644
--- a/app/MindWork AI Studio/Tools/PluginSystem/PluginConfiguration.cs	
+++ b/app/MindWork AI Studio/Tools/PluginSystem/PluginConfiguration.cs	
@@ -474,6 +474,13 @@ public sealed class PluginConfiguration(bool isInternal, LuaState state, PluginT
         ManagedConfiguration.TryProcessConfiguration(x => x.VisualBriefing, x => x.OptimizeImages, this.Id, settingsTable, dryRun);
         ManagedConfiguration.TryProcessConfiguration(x => x.VisualBriefing, x => x.MinimumProviderConfidence, this.Id, settingsTable, dryRun);
 
+        // Config: Assistant Builder defaults?
+        ManagedConfiguration.TryProcessConfiguration(x => x.AssistantBuilder, x => x.PreselectOptions, this.Id, settingsTable, dryRun);
+        ManagedConfiguration.TryProcessConfiguration(x => x.AssistantBuilder, x => x.PreselectedProvider, Guid.Empty, this.Id, settingsTable, dryRun);
+        ManagedConfiguration.TryProcessConfiguration(x => x.AssistantBuilder, x => x.PreselectedOutputLanguage, this.Id, settingsTable, dryRun);
+        ManagedConfiguration.TryProcessConfiguration(x => x.AssistantBuilder, x => x.PreselectedOtherOutputLanguage, this.Id, settingsTable, dryRun);
+        ManagedConfiguration.TryProcessConfiguration(x => x.AssistantBuilder, x => x.MinimumProviderConfidence, this.Id, settingsTable, dryRun);
+
         // Config: transcription provider?
         ManagedConfiguration.TryProcessConfiguration(x => x.App, x => x.UseTranscriptionProvider, Guid.Empty, this.Id, settingsTable, dryRun);
 
diff --git a/app/MindWork AI Studio/wwwroot/changelog/v26.10.1.md b/app/MindWork AI Studio/wwwroot/changelog/v26.10.1.md
index 46cb24bb9..f01a8115d 100644
--- a/app/MindWork AI Studio/wwwroot/changelog/v26.10.1.md	
+++ b/app/MindWork AI Studio/wwwroot/changelog/v26.10.1.md	
@@ -26,6 +26,8 @@
 - Added a way for IT departments to ask you for your personal API key on the start page. When the configuration of your organization brings providers that need your own key, the start page explains how to get it, checks the key with the provider, and stores it for all of these providers at once. Thanks, Dominic Neuburg (`donework`), for this contribution.
 - Added providers, profiles, and workspaces to your chat templates. A template can now decide which provider, and with it which model, and which profile a chat starts with, and keep its chats in a workspace of its own. A template for your mails, for example, can start every chat with a provider that meets the confidence level your mailbox requires. You can still pick another provider or profile in the chat.
 - Added a way for IT departments to roll out chat templates that bring their own provider, profile, and workspace. Set the template up in the app, then export it as ready-made Lua code for your configuration plugin.
+- Added settings to the Assistant Builder. There you choose the provider, and with it the model, that the Assistant Builder starts with, the language in which the assistants you build answer, and the minimum confidence level a provider needs. Thanks, Nils Kruthoff (`nilskruthoff`), for this contribution.
+- Added organization-wide management for the defaults of the Assistant Builder. IT departments can preset its provider, the language in which the assistants built with it answer, and the minimum confidence level, either fixed or as a default which users may change.
 - Improved the Read Web Page tool. When you have not allowed the AI to choose web addresses freely, the tool now refuses every address that does not appear in your chat or in what the tools returned, instead of only asking the AI not to read it.
 - Improved the installation on macOS: AI Studio is now signed and checked by Apple, so it opens like any other app. You no longer need the Terminal.
 - Improved the installation on Windows: AI Studio is now signed, so Windows shows who published it. For a while, Windows may still ask you to confirm the installation until it knows the app better.