diff --git a/app/MindWork AI Studio/Components/Pages/Chat.razor.cs b/app/MindWork AI Studio/Components/Pages/Chat.razor.cs
index e4acea8..5b5b4c3 100644
--- a/app/MindWork AI Studio/Components/Pages/Chat.razor.cs	
+++ b/app/MindWork AI Studio/Components/Pages/Chat.razor.cs	
@@ -102,7 +102,7 @@ public partial class Chat : ComponentBase
         // Use the selected provider to get the AI response.
         // By awaiting this line, we wait for the entire
         // content to be streamed.
-        await aiText.CreateFromProviderAsync(this.selectedProvider.UsedProvider.CreateProvider(), this.JsRuntime, this.SettingsManager, new Model("gpt-4o"), this.chatThread);
+        await aiText.CreateFromProviderAsync(this.selectedProvider.UsedProvider.CreateProvider(this.selectedProvider.InstanceName), this.JsRuntime, this.SettingsManager, this.selectedProvider.Model, this.chatThread);
         
         // Disable the stream state:
         this.isStreaming = false;
diff --git a/app/MindWork AI Studio/Components/Pages/Settings.razor b/app/MindWork AI Studio/Components/Pages/Settings.razor
index a450312..2820b10 100644
--- a/app/MindWork AI Studio/Components/Pages/Settings.razor	
+++ b/app/MindWork AI Studio/Components/Pages/Settings.razor	
@@ -7,20 +7,23 @@
     <MudTable Items="@this.SettingsManager.ConfigurationData.Providers">
         <ColGroup>
             <col style="width: 3em;"/>
-            <col style="width: 6em;"/>
+            <col style="width: 12em;"/>
+            <col style="width: 12em;"/>
             <col/>
             <col style="width: 20em;"/>
         </ColGroup>
         <HeaderContent>
             <MudTh>#</MudTh>
+            <MudTh>Instance Name</MudTh>
             <MudTh>Provider</MudTh>
-            <MudTh>Name</MudTh>
+            <MudTh>Model</MudTh>
             <MudTh Style="text-align: left;">Actions</MudTh>
         </HeaderContent>
         <RowTemplate>
-            <MudTd></MudTd>
-            <MudTd>@context.UsedProvider</MudTd>
+            <MudTd>@context.Num</MudTd>
             <MudTd>@context.InstanceName</MudTd>
+            <MudTd>@context.UsedProvider</MudTd>
+            <MudTd>@context.Model</MudTd>
             <MudTd Style="text-align: left;">
                 <MudButton Variant="Variant.Filled" Color="Color.Info" StartIcon="@Icons.Material.Filled.Edit" Class="mr-2" OnClick="() => this.EditProvider(context)">
                     Edit
diff --git a/app/MindWork AI Studio/Components/Pages/Settings.razor.cs b/app/MindWork AI Studio/Components/Pages/Settings.razor.cs
index 94cc597..b287877 100644
--- a/app/MindWork AI Studio/Components/Pages/Settings.razor.cs	
+++ b/app/MindWork AI Studio/Components/Pages/Settings.razor.cs	
@@ -52,6 +52,8 @@ public partial class Settings : ComponentBase
             return;
 
         var addedProvider = (AIStudio.Settings.Provider)dialogResult.Data;
+        addedProvider = addedProvider with { Num = this.SettingsManager.ConfigurationData.NextProviderNum++ };
+        
         this.SettingsManager.ConfigurationData.Providers.Add(addedProvider);
         await this.SettingsManager.StoreSettings();
     }
@@ -60,9 +62,11 @@ public partial class Settings : ComponentBase
     {
         var dialogParameters = new DialogParameters<ProviderDialog>
         {
+            { x => x.DataNum, provider.Num },
             { x => x.DataId, provider.Id },
             { x => x.DataInstanceName, provider.InstanceName },
             { x => x.DataProvider, provider.UsedProvider },
+            { x => x.DataModel, provider.Model },
             { x => x.IsEditing, true },
         };
 
@@ -72,6 +76,12 @@ public partial class Settings : ComponentBase
             return;
 
         var editedProvider = (AIStudio.Settings.Provider)dialogResult.Data;
+        
+        // Set the provider number if it's not set. This is important for providers
+        // added before we started saving the provider number.
+        if(editedProvider.Num == 0)
+            editedProvider = editedProvider with { Num = this.SettingsManager.ConfigurationData.NextProviderNum++ };
+        
         this.SettingsManager.ConfigurationData.Providers[this.SettingsManager.ConfigurationData.Providers.IndexOf(provider)] = editedProvider;
         await this.SettingsManager.StoreSettings();
     }
@@ -88,9 +98,7 @@ public partial class Settings : ComponentBase
         if (dialogResult.Canceled)
             return;
         
-        var providerInstance = provider.UsedProvider.CreateProvider();
-        providerInstance.InstanceName = provider.InstanceName;
-        
+        var providerInstance = provider.UsedProvider.CreateProvider(provider.InstanceName);
         var deleteSecretResponse = await this.SettingsManager.DeleteAPIKey(this.JsRuntime, providerInstance);
         if(deleteSecretResponse.Success)
         {
diff --git a/app/MindWork AI Studio/MindWork AI Studio.csproj b/app/MindWork AI Studio/MindWork AI Studio.csproj
index 4dfe22b..aa0d895 100644
--- a/app/MindWork AI Studio/MindWork AI Studio.csproj	
+++ b/app/MindWork AI Studio/MindWork AI Studio.csproj	
@@ -20,12 +20,18 @@
         <EnableUnsafeUTF7Encoding>false</EnableUnsafeUTF7Encoding> <!-- Remove unsafe UTF7 encoding -->
         <JsonSerializerIsReflectionEnabledByDefault>true</JsonSerializerIsReflectionEnabledByDefault> <!-- Enable reflection for JSON serialization -->
         <SuppressTrimAnalysisWarnings>true</SuppressTrimAnalysisWarnings> <!-- Suppress trim analysis warnings -->
-        <NoWarn>IL2026</NoWarn> <!-- Suppress warning IL2026: Usage of methods marked as RequiresUnreferencedCode. None issue here, since we use trim mode partial, though. -->
+
+        <!--
+            IL2026: Usage of methods marked as RequiresUnreferencedCode. None issue here, since we use partial trim mode, though.
+            CS8974: Converting method group to non-delegate type; Did you intend to invoke the method? We have this issue with MudBlazor validation methods.
+        -->
+        <NoWarn>IL2026, CS8974</NoWarn>
     </PropertyGroup>
 
     <ItemGroup>
       <!-- Remove launchSettings.json from the project -->  
       <None Remove="Properties\launchSettings.json" />
+      <None Remove="build.nu" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/app/MindWork AI Studio/Program.cs b/app/MindWork AI Studio/Program.cs
index a64921c..72f6f22 100644
--- a/app/MindWork AI Studio/Program.cs	
+++ b/app/MindWork AI Studio/Program.cs	
@@ -1,15 +1,16 @@
-using System.Reflection;
-
 using AIStudio;
 using AIStudio.Components;
 using AIStudio.Settings;
 using AIStudio.Tools;
 
-using Microsoft.Extensions.FileProviders;
-
 using MudBlazor;
 using MudBlazor.Services;
 
+#if !DEBUG
+using System.Reflection;
+using Microsoft.Extensions.FileProviders;
+#endif
+
 var builder = WebApplication.CreateBuilder();
 builder.Services.AddMudServices(config =>
 {
diff --git a/app/MindWork AI Studio/Provider/IProvider.cs b/app/MindWork AI Studio/Provider/IProvider.cs
index 15403bf..7c5baeb 100644
--- a/app/MindWork AI Studio/Provider/IProvider.cs	
+++ b/app/MindWork AI Studio/Provider/IProvider.cs	
@@ -53,7 +53,7 @@ public interface IProvider
     /// <param name="settings">The settings manager to access the API key.</param>
     /// <param name="token">The cancellation token.</param>
     /// <returns>The list of text models.</returns>
-    public Task<IList<Model>> GetTextModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default);
+    public Task<IEnumerable<Model>> GetTextModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default);
     
     /// <summary>
     /// Load all possible image models that can be used with this provider.
@@ -62,5 +62,5 @@ public interface IProvider
     /// <param name="settings">The settings manager to access the API key.</param>
     /// <param name="token">The cancellation token.</param>
     /// <returns>The list of image models.</returns>
-    public Task<IList<Model>> GetImageModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default);
+    public Task<IEnumerable<Model>> GetImageModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default);
 }
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Provider/ImageURL.cs b/app/MindWork AI Studio/Provider/ImageURL.cs
index 8d86e3b..2faef58 100644
--- a/app/MindWork AI Studio/Provider/ImageURL.cs	
+++ b/app/MindWork AI Studio/Provider/ImageURL.cs	
@@ -3,5 +3,5 @@ namespace AIStudio.Provider;
 /// <summary>
 /// An image URL.
 /// </summary>
-/// <param name="url">The image URL.</param>
-public readonly record struct ImageURL(string url);
\ No newline at end of file
+/// <param name="URL">The image URL.</param>
+public readonly record struct ImageURL(string URL);
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Provider/Model.cs b/app/MindWork AI Studio/Provider/Model.cs
index d8f8d05..af39709 100644
--- a/app/MindWork AI Studio/Provider/Model.cs	
+++ b/app/MindWork AI Studio/Provider/Model.cs	
@@ -4,4 +4,11 @@ namespace AIStudio.Provider;
 /// The data model for the model to use.
 /// </summary>
 /// <param name="Id">The model's ID.</param>
-public readonly record struct Model(string Id);
\ No newline at end of file
+public readonly record struct Model(string Id)
+{
+    #region Overrides of ValueType
+
+    public override string ToString() => string.IsNullOrWhiteSpace(this.Id) ? "no model selected" : this.Id;
+
+    #endregion
+}
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Provider/NoProvider.cs b/app/MindWork AI Studio/Provider/NoProvider.cs
index e505395..d65ea57 100644
--- a/app/MindWork AI Studio/Provider/NoProvider.cs	
+++ b/app/MindWork AI Studio/Provider/NoProvider.cs	
@@ -17,9 +17,9 @@ public class NoProvider : IProvider
 
     public string InstanceName { get; set; } = "None";
 
-    public Task<IList<Model>> GetTextModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default) => Task.FromResult<IList<Model>>(new List<Model>());
+    public Task<IEnumerable<Model>> GetTextModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default) => Task.FromResult<IEnumerable<Model>>([]);
 
-    public Task<IList<Model>> GetImageModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default) => Task.FromResult<IList<Model>>(new List<Model>());
+    public Task<IEnumerable<Model>> GetImageModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default) => Task.FromResult<IEnumerable<Model>>([]);
 
     public async IAsyncEnumerable<string> StreamChatCompletion(IJSRuntime jsRuntime, SettingsManager settings, Model chatModel, ChatThread chatChatThread, [EnumeratorCancellation] CancellationToken token = default)
     {
diff --git a/app/MindWork AI Studio/Provider/OpenAI/ProviderOpenAI.cs b/app/MindWork AI Studio/Provider/OpenAI/ProviderOpenAI.cs
index ed5abfe..8abb5f3 100644
--- a/app/MindWork AI Studio/Provider/OpenAI/ProviderOpenAI.cs	
+++ b/app/MindWork AI Studio/Provider/OpenAI/ProviderOpenAI.cs	
@@ -155,34 +155,33 @@ public sealed class ProviderOpenAI() : BaseProvider("https://api.openai.com/v1/"
     #pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
 
     /// <inheritdoc />
-    public async Task<IList<Model>> GetTextModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default)
+    public Task<IEnumerable<Model>> GetTextModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default)
     {
-        return await this.LoadModels(jsRuntime, settings, "gpt-", token);
+        return this.LoadModels(jsRuntime, settings, "gpt-", token);
     }
 
     /// <inheritdoc />
-    public async Task<IList<Model>> GetImageModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default)
+    public Task<IEnumerable<Model>> GetImageModels(IJSRuntime jsRuntime, SettingsManager settings, CancellationToken token = default)
     {
-        return await this.LoadModels(jsRuntime, settings, "dall-e-", token);
+        return this.LoadModels(jsRuntime, settings, "dall-e-", token);
     }
 
     #endregion
 
-    private async Task<IList<Model>> LoadModels(IJSRuntime jsRuntime, SettingsManager settings, string prefix, CancellationToken token)
+    private async Task<IEnumerable<Model>> LoadModels(IJSRuntime jsRuntime, SettingsManager settings, string prefix, CancellationToken token)
     {
         var requestedSecret = await settings.GetAPIKey(jsRuntime, this);
-        if(!requestedSecret.Success)
-            return new List<Model>();
+        if (!requestedSecret.Success)
+            return [];
         
         var request = new HttpRequestMessage(HttpMethod.Get, "models");
         request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", requestedSecret.Secret);
-        
-        var emptyList = new List<Model>();
+
         var response = await this.httpClient.SendAsync(request, token);
         if(!response.IsSuccessStatusCode)
-            return emptyList;
+            return [];
 
         var modelResponse = await response.Content.ReadFromJsonAsync<ModelsResponse>(token);
-        return modelResponse.Data.Where(n => n.Id.StartsWith(prefix, StringComparison.InvariantCulture)).ToList();
+        return modelResponse.Data.Where(n => n.Id.StartsWith(prefix, StringComparison.InvariantCulture));
     }
 }
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Provider/Providers.cs b/app/MindWork AI Studio/Provider/Providers.cs
index 83d3ad9..0c93f42 100644
--- a/app/MindWork AI Studio/Provider/Providers.cs	
+++ b/app/MindWork AI Studio/Provider/Providers.cs	
@@ -25,17 +25,19 @@ public static class ExtensionsProvider
     {
         Providers.OPEN_AI => "OpenAI",
         
+        Providers.NONE => "No provider selected",
         _ => "Unknown",
     };
-    
+
     /// <summary>
     /// Creates a new provider instance based on the provider value.
     /// </summary>
     /// <param name="provider">The provider value.</param>
+    /// <param name="instanceName">The used instance name.</param>
     /// <returns>The provider instance.</returns>
-    public static IProvider CreateProvider(this Providers provider) => provider switch
+    public static IProvider CreateProvider(this Providers provider, string instanceName) => provider switch
     {
-        Providers.OPEN_AI => new ProviderOpenAI(),
+        Providers.OPEN_AI => new ProviderOpenAI { InstanceName = instanceName },
         
         _ => new NoProvider(),
     };
diff --git a/app/MindWork AI Studio/Settings/Data.cs b/app/MindWork AI Studio/Settings/Data.cs
index ff89a31..465ebe6 100644
--- a/app/MindWork AI Studio/Settings/Data.cs	
+++ b/app/MindWork AI Studio/Settings/Data.cs	
@@ -14,7 +14,12 @@ public sealed class Data
     /// <summary>
     /// List of configured providers.
     /// </summary>
-    public List<Provider> Providers { get; init; } = new();
+    public List<Provider> Providers { get; init; } = [];
+
+    /// <summary>
+    /// The next provider number to use.
+    /// </summary>
+    public uint NextProviderNum { get; set; } = 1;
 
     /// <summary>
     /// Should we save energy? When true, we will update content streamed
diff --git a/app/MindWork AI Studio/Settings/Provider.cs b/app/MindWork AI Studio/Settings/Provider.cs
index 4d32f01..d1f6194 100644
--- a/app/MindWork AI Studio/Settings/Provider.cs	
+++ b/app/MindWork AI Studio/Settings/Provider.cs	
@@ -5,10 +5,12 @@ namespace AIStudio.Settings;
 /// <summary>
 /// Data model for configured providers.
 /// </summary>
+/// <param name="Num">The provider's number.</param>
 /// <param name="Id">The provider's ID.</param>
 /// <param name="InstanceName">The provider's instance name. Useful for multiple instances of the same provider, e.g., to distinguish between different OpenAI API keys.</param>
 /// <param name="UsedProvider">The provider used.</param>
-public readonly record struct Provider(string Id, string InstanceName, Providers UsedProvider)
+/// <param name="Model">The LLM model to use for chat.</param>
+public readonly record struct Provider(uint Num, string Id, string InstanceName, Providers UsedProvider, Model Model)
 {
     #region Overrides of ValueType
 
@@ -19,7 +21,7 @@ public readonly record struct Provider(string Id, string InstanceName, Providers
     /// <returns>A string that represents the current provider in a human-readable format.</returns>
     public override string ToString()
     {
-        return $"{this.InstanceName} ({this.UsedProvider.ToName()})";
+        return $"{this.InstanceName} ({this.UsedProvider.ToName()}, {this.Model})";
     }
 
     #endregion
diff --git a/app/MindWork AI Studio/Settings/ProviderDialog.razor b/app/MindWork AI Studio/Settings/ProviderDialog.razor
index ed5a048..0fac746 100644
--- a/app/MindWork AI Studio/Settings/ProviderDialog.razor	
+++ b/app/MindWork AI Studio/Settings/ProviderDialog.razor	
@@ -9,6 +9,7 @@
                 T="string"
                 @bind-Text="@this.DataInstanceName"
                 Label="Instance Name"
+                Class="mb-3"
                 Adornment="Adornment.Start"
                 AdornmentIcon="@Icons.Material.Filled.Lightbulb"
                 AdornmentColor="Color.Info"
@@ -16,7 +17,7 @@
             />
             
             @* ReSharper disable once CSharpWarnings::CS8974 *@
-            <MudSelect @bind-Value="@this.DataProvider" Label="Provider" OpenIcon="@Icons.Material.Filled.AccountBalance" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.ValidatingProvider">
+            <MudSelect @bind-Value="@this.DataProvider" Label="Provider" Class="mb-3" OpenIcon="@Icons.Material.Filled.AccountBalance" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.ValidatingProvider">
                 @foreach (Providers provider in Enum.GetValues(typeof(Providers)))
                 {
                     <MudSelectItem Value="@provider">@provider</MudSelectItem>
@@ -28,12 +29,24 @@
                 T="string"
                 @bind-Text="@this.dataAPIKey"
                 Label="API Key"
+                Class="mb-3"
                 Adornment="Adornment.Start"
                 AdornmentIcon="@Icons.Material.Filled.VpnKey"
                 AdornmentColor="Color.Info"
                 InputType="InputType.Password"
                 Validation="@this.ValidatingAPIKey"
             />
+
+            <MudStack Row="@true" AlignItems="AlignItems.Center">
+                <MudButton Disabled="@(!this.CanLoadModels)" Variant="Variant.Filled" Size="Size.Small" StartIcon="@Icons.Material.Filled.Refresh" OnClick="this.ReloadModels">Reload</MudButton>
+                <MudSelect @bind-Value="@this.DataModel" Label="Model" Class="mb-3" OpenIcon="@Icons.Material.Filled.FaceRetouchingNatural" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.ValidatingModel">
+                    @foreach (var model in this.availableModels)
+                    {
+                        <MudSelectItem Value="@model">@model</MudSelectItem>
+                    }
+                </MudSelect>
+            </MudStack>
+            
         </MudForm>
 
         @if (this.dataIssues.Any())
diff --git a/app/MindWork AI Studio/Settings/ProviderDialog.razor.cs b/app/MindWork AI Studio/Settings/ProviderDialog.razor.cs
index 51e602f..1a267ca 100644
--- a/app/MindWork AI Studio/Settings/ProviderDialog.razor.cs	
+++ b/app/MindWork AI Studio/Settings/ProviderDialog.razor.cs	
@@ -16,6 +16,12 @@ public partial class ProviderDialog : ComponentBase
 {
     [CascadingParameter]
     private MudDialogInstance MudDialog { get; set; } = null!;
+
+    /// <summary>
+    /// The provider's number in the list.
+    /// </summary>
+    [Parameter]
+    public uint DataNum { get; set; }
     
     /// <summary>
     /// The provider's ID.
@@ -35,6 +41,12 @@ public partial class ProviderDialog : ComponentBase
     [Parameter]
     public Providers DataProvider { get; set; } = Providers.NONE;
     
+    /// <summary>
+    /// The LLM model to use, e.g., GPT-4o.
+    /// </summary>
+    [Parameter]
+    public Model DataModel { get; set; }
+    
     /// <summary>
     /// Should the dialog be in editing mode?
     /// </summary>
@@ -50,7 +62,7 @@ public partial class ProviderDialog : ComponentBase
     /// <summary>
     /// The list of used instance names. We need this to check for uniqueness.
     /// </summary>
-    private List<string> usedInstanceNames { get; set; } = [];
+    private List<string> UsedInstanceNames { get; set; } = [];
     
     private bool dataIsValid;
     private string[] dataIssues = [];
@@ -60,28 +72,33 @@ public partial class ProviderDialog : ComponentBase
     
     // We get the form reference from Blazor code to validate it manually:
     private MudForm form = null!;
+    
+    private readonly List<Model> availableModels = new();
 
     #region Overrides of ComponentBase
 
     protected override async Task OnInitializedAsync()
     {
         // Load the used instance names:
-        this.usedInstanceNames = this.SettingsManager.ConfigurationData.Providers.Select(x => x.InstanceName.ToLowerInvariant()).ToList();
+        this.UsedInstanceNames = this.SettingsManager.ConfigurationData.Providers.Select(x => x.InstanceName.ToLowerInvariant()).ToList();
         
         // When editing, we need to load the data:
         if(this.IsEditing)
         {
             this.dataEditingPreviousInstanceName = this.DataInstanceName.ToLowerInvariant();
-            var provider = this.DataProvider.CreateProvider();
+            var provider = this.DataProvider.CreateProvider(this.DataInstanceName);
             if(provider is NoProvider)
                 return;
             
-            provider.InstanceName = this.DataInstanceName;
-            
             // Load the API key:
             var requestedSecret = await this.SettingsManager.GetAPIKey(this.JsRuntime, provider);
             if(requestedSecret.Success)
+            {
                 this.dataAPIKey = requestedSecret.Secret;
+                
+                // Now, we try to load the list of available models:
+                await this.ReloadModels();
+            }
             else
             {
                 this.dataAPIKeyStorageIssue = $"Failed to load the API key from the operating system. The message was: {requestedSecret.Issue}. You might ignore this message and provide the API key again.";
@@ -118,14 +135,15 @@ public partial class ProviderDialog : ComponentBase
         // We just return this data to the parent component:
         var addedProvider = new Provider
         {
+            Num = this.DataNum,
             Id = this.DataId,
             InstanceName = this.DataInstanceName,
             UsedProvider = this.DataProvider,
+            Model = this.DataModel,
         };
         
         // We need to instantiate the provider to store the API key:
-        var provider = this.DataProvider.CreateProvider();
-        provider.InstanceName = this.DataInstanceName;
+        var provider = this.DataProvider.CreateProvider(this.DataInstanceName);
             
         // Store the API key in the OS secure storage:
         var storeResponse = await this.SettingsManager.SetAPIKey(this.JsRuntime, provider, this.dataAPIKey);
@@ -147,6 +165,14 @@ public partial class ProviderDialog : ComponentBase
         return null;
     }
     
+    private string? ValidatingModel(Model model)
+    {
+        if (model == default)
+            return "Please select a model.";
+        
+        return null;
+    }
+    
     [GeneratedRegex("^[a-zA-Z0-9 ]+$")]
     private static partial Regex InstanceNameRegex();
     
@@ -170,7 +196,7 @@ public partial class ProviderDialog : ComponentBase
         
         // The instance name must be unique:
         var lowerInstanceName = instanceName.ToLowerInvariant();
-        if (lowerInstanceName != this.dataEditingPreviousInstanceName && this.usedInstanceNames.Contains(lowerInstanceName))
+        if (lowerInstanceName != this.dataEditingPreviousInstanceName && this.UsedInstanceNames.Contains(lowerInstanceName))
             return "The instance name must be unique; the chosen name is already in use.";
         
         return null;
@@ -188,4 +214,21 @@ public partial class ProviderDialog : ComponentBase
     }
 
     private void Cancel() => this.MudDialog.Cancel();
+
+    private bool CanLoadModels => !string.IsNullOrWhiteSpace(this.dataAPIKey) && this.DataProvider != Providers.NONE && !string.IsNullOrWhiteSpace(this.DataInstanceName);
+    
+    private async Task ReloadModels()
+    {
+        var provider = this.DataProvider.CreateProvider(this.DataInstanceName);
+        if(provider is NoProvider)
+            return;
+
+        var models = await provider.GetTextModels(this.JsRuntime, this.SettingsManager);
+        
+        // Order descending by ID means that the newest models probably come first:
+        var orderedModels = models.OrderByDescending(n => n.Id);
+        
+        this.availableModels.Clear();
+        this.availableModels.AddRange(orderedModels);
+    }
 }
\ No newline at end of file