Keep non-chat models out of the chat lists

app/MindWork AI Studio/Provider/X/ProviderX.cs

@@ -79,7 +79,12 @@ public sealed class ProviderX() : BaseProvider(LLMProviders.X, new Uri("https://
         var result = await this.LoadModels(SecretStoreType.LLM_PROVIDER, ["grok-"], apiKeyProvisional, token);
         return result with
         {
-            Models = [..result.Models.Where(n => !n.Id.Contains("-image", StringComparison.OrdinalIgnoreCase))]
+            //
+            // Asking what a model is made for rather than testing its name for a word. The word was
+            // "-image", which said nothing about grok-imagine-video: that one made films and stood
+            // in the list of things to chat with.
+            //
+            Models = [..result.Models.Where(model => model.IsChatModel())]
         };
     }