diff --git a/app/MindWork AI Studio/Settings/ProviderExtensions.Alibaba.cs b/app/MindWork AI Studio/Settings/ProviderExtensions.Alibaba.cs
index 2a38c9fb..0b2ce380 100644
--- a/app/MindWork AI Studio/Settings/ProviderExtensions.Alibaba.cs	
+++ b/app/MindWork AI Studio/Settings/ProviderExtensions.Alibaba.cs	
@@ -35,17 +35,19 @@ private static List<Capability> GetModelCapabilitiesAlibaba(Model model)
                     Capability.CHAT_COMPLETION_API,
                 ];
             
-            // Check for Qwen 3:
-            if(modelName.StartsWith("qwen3"))
+            // Check for Qwen 3.6 plus:
+            if(modelName.StartsWith("qwen3.6-plus"))
                 return
                 [
-                    Capability.TEXT_INPUT,
+                    Capability.TEXT_INPUT, Capability.VIDEO_INPUT,
+                    Capability.MULTIPLE_IMAGE_INPUT,
                     Capability.TEXT_OUTPUT,
                     
-                    Capability.OPTIONAL_REASONING, Capability.FUNCTION_CALLING,
+                    Capability.ALWAYS_REASONING, Capability.FUNCTION_CALLING,
                     Capability.CHAT_COMPLETION_API,
                 ];
             
+            // Check for the 3.0 VL models:
             if(modelName.IndexOf("-vl-") is not -1)
                 return
                 [
@@ -54,6 +56,17 @@ private static List<Capability> GetModelCapabilitiesAlibaba(Model model)
                     
                     Capability.CHAT_COMPLETION_API,
                 ];
+            
+            // Check for Qwen 3:
+            if(modelName.StartsWith("qwen3"))
+                return
+                [
+                    Capability.TEXT_INPUT,
+                    Capability.TEXT_OUTPUT,
+                    
+                    Capability.OPTIONAL_REASONING, Capability.FUNCTION_CALLING,
+                    Capability.CHAT_COMPLETION_API,
+                ];
         }
         
         // QwQ models:
diff --git a/app/MindWork AI Studio/Settings/ProviderExtensions.Mistral.cs b/app/MindWork AI Studio/Settings/ProviderExtensions.Mistral.cs
index 3d0150c9..931e67bb 100644
--- a/app/MindWork AI Studio/Settings/ProviderExtensions.Mistral.cs	
+++ b/app/MindWork AI Studio/Settings/ProviderExtensions.Mistral.cs	
@@ -19,13 +19,41 @@ private static List<Capability> GetModelCapabilitiesMistral(Model model)
                 Capability.CHAT_COMPLETION_API,
             ];
         
+        // Mistral large latest:
+        if (modelName.IndexOf("mistral-large-latest") is not -1)                 
+            return
+            [
+                Capability.TEXT_INPUT, 
+                Capability.MULTIPLE_IMAGE_INPUT,
+                Capability.TEXT_OUTPUT,
+                
+                Capability.OPTIONAL_REASONING,
+                
+                Capability.FUNCTION_CALLING,
+                Capability.CHAT_COMPLETION_API,
+            ];
+        
         // Mistral large:
         if (modelName.IndexOf("mistral-large-") is not -1)
             return
             [
-                Capability.TEXT_INPUT, Capability.MULTIPLE_IMAGE_INPUT,
+                Capability.TEXT_INPUT, 
+                Capability.TEXT_OUTPUT,
+                
+                Capability.FUNCTION_CALLING,
+                Capability.CHAT_COMPLETION_API,
+            ];
+        
+        // Mistral medium latest:
+        if (modelName.IndexOf("mistral-medium-latest") is not -1)           
+            return
+            [
+                Capability.TEXT_INPUT, 
+                Capability.MULTIPLE_IMAGE_INPUT,
                 Capability.TEXT_OUTPUT,
                 
+                Capability.OPTIONAL_REASONING,
+                
                 Capability.FUNCTION_CALLING,
                 Capability.CHAT_COMPLETION_API,
             ];
@@ -34,8 +62,24 @@ private static List<Capability> GetModelCapabilitiesMistral(Model model)
         if (modelName.IndexOf("mistral-medium-") is not -1)
             return
             [
-                Capability.TEXT_INPUT, Capability.MULTIPLE_IMAGE_INPUT,
+                Capability.TEXT_INPUT, 
+                Capability.TEXT_OUTPUT,
+                
+                Capability.OPTIONAL_REASONING,
+                
+                Capability.FUNCTION_CALLING,
+                Capability.CHAT_COMPLETION_API,
+            ];
+        
+        // Mistral small latest:
+        if (modelName.IndexOf("mistral-small-latest") is not -1)        
+            return
+            [
+                Capability.TEXT_INPUT, 
+                Capability.MULTIPLE_IMAGE_INPUT,
                 Capability.TEXT_OUTPUT,
+
+                Capability.OPTIONAL_REASONING,
                 
                 Capability.FUNCTION_CALLING,
                 Capability.CHAT_COMPLETION_API,
@@ -45,8 +89,10 @@ private static List<Capability> GetModelCapabilitiesMistral(Model model)
         if (modelName.IndexOf("mistral-small-") is not -1)
             return
             [
-                Capability.TEXT_INPUT, Capability.MULTIPLE_IMAGE_INPUT,
+                Capability.TEXT_INPUT, 
                 Capability.TEXT_OUTPUT,
+
+                Capability.OPTIONAL_REASONING,
                 
                 Capability.FUNCTION_CALLING,
                 Capability.CHAT_COMPLETION_API,
diff --git a/app/MindWork AI Studio/Settings/ProviderExtensions.OpenSource.cs b/app/MindWork AI Studio/Settings/ProviderExtensions.OpenSource.cs
index dc30e53b..1f1854b8 100644
--- a/app/MindWork AI Studio/Settings/ProviderExtensions.OpenSource.cs	
+++ b/app/MindWork AI Studio/Settings/ProviderExtensions.OpenSource.cs	
@@ -113,6 +113,18 @@ private static List<Capability> GetModelCapabilitiesOpenSource(Model model)
                     Capability.CHAT_COMPLETION_API,
                 ];
             
+            // Check for Qwen 3.6:
+            if(modelName.IndexOf("qwen3.6-plus") is not -1)
+                return
+                [
+                    Capability.TEXT_INPUT, Capability.VIDEO_INPUT,
+                    Capability.MULTIPLE_IMAGE_INPUT,
+                    Capability.TEXT_OUTPUT,
+                    
+                    Capability.ALWAYS_REASONING, Capability.FUNCTION_CALLING,
+                    Capability.CHAT_COMPLETION_API,
+                ];
+            
             if(modelName.IndexOf("-vl-") is not -1)
                 return [
                     Capability.TEXT_INPUT, Capability.MULTIPLE_IMAGE_INPUT,
@@ -150,9 +162,49 @@ private static List<Capability> GetModelCapabilitiesOpenSource(Model model)
                 modelName.IndexOf("mistral-large-3") is not -1)
                 return
                 [
-                    Capability.TEXT_INPUT, Capability.MULTIPLE_IMAGE_INPUT,
+                    Capability.TEXT_INPUT, 
+                    Capability.MULTIPLE_IMAGE_INPUT,
                     Capability.TEXT_OUTPUT,
-                    
+                
+                    Capability.OPTIONAL_REASONING,
+                
+                    Capability.FUNCTION_CALLING,
+                    Capability.CHAT_COMPLETION_API,
+                ];
+            
+            if (modelName.IndexOf("mistral-small-4") is not -1)
+                return
+                [
+                    Capability.TEXT_INPUT, 
+                    Capability.MULTIPLE_IMAGE_INPUT,
+                    Capability.TEXT_OUTPUT,
+
+                    Capability.OPTIONAL_REASONING,
+                
+                    Capability.FUNCTION_CALLING,
+                    Capability.CHAT_COMPLETION_API,
+                ];
+            
+            if (modelName.IndexOf("mistral-small-3") is not -1 ||
+                modelName.IndexOf("mistral-small-4") is not -1)
+                return
+                [
+                    Capability.TEXT_INPUT, 
+                    Capability.MULTIPLE_IMAGE_INPUT,
+                    Capability.TEXT_OUTPUT,
+
+                    Capability.OPTIONAL_REASONING,
+                
+                    Capability.FUNCTION_CALLING,
+                    Capability.CHAT_COMPLETION_API,
+                ];
+            
+            if (modelName.IndexOf("mistral-small-") is not -1)
+                return
+                [
+                    Capability.TEXT_INPUT, 
+                    Capability.TEXT_OUTPUT,
+                
                     Capability.FUNCTION_CALLING,
                     Capability.CHAT_COMPLETION_API,
                 ];
@@ -305,4 +357,4 @@ private static List<Capability> GetModelCapabilitiesOpenSource(Model model)
             Capability.CHAT_COMPLETION_API,
         ];
     }
-}
\ No newline at end of file
+}
diff --git a/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md b/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md
index 7e20d451..5cb7a786 100644
--- a/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md	
+++ b/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md	
@@ -1,5 +1,5 @@
 # v26.3.1, build 235 (2026-03-xx xx:xx UTC)
-- Added support for the new Qwen 3.5 model family.
+- Added support for the latest AI models, e.g., Qwen 3.5 & 3.6 Plus, Mistral Large 3 & Small 4, OpenAI GPT 5.4, etc.
 - Added assistant plugins, making it possible to extend AI Studio with custom assistants. Many thanks to Nils Kruthof `nilskruthoff` for this contribution.
 - Added a slide planner assistant, which helps you turn longer texts or documents into clear, structured presentation slides. Many thanks to Sabrina `Sabrina-devops` for her wonderful work on this assistant.
 - Added a reminder in chats and assistants that LLMs can make mistakes, helping you double-check important information more easily.
@@ -8,7 +8,6 @@
 - Added a start-page setting, so AI Studio can now open directly on your preferred page when the app starts. Configuration plugins can also provide and optionally lock this default for organizations.
 - Added pre-call validation to check if the selected model exists for the provider before making the request.
 - Added math rendering in chats for LaTeX display formulas, including block formats such as `$$ ... $$` and `\[ ... \]`.
-- Added the latest OpenAI models.
 - Added support for mandatory information notices in configuration plugins. Organizations can now require users to read and confirm important information before continuing in AI Studio.
 - Released the document analysis assistant after an intense testing phase.
 - Improved enterprise deployment for organizations: administrators can now provide up to 10 centrally managed enterprise configuration slots, use policy files on Linux and macOS, and continue using older configuration formats as a fallback during migration.