diff --git a/docs/release_notes.md b/docs/release_notes.md
index b9489692a..6b75dc80c 100644
--- a/docs/release_notes.md
+++ b/docs/release_notes.md
@@ -12,6 +12,8 @@
 
 ### ✨ New Functionality
 
+- [Orchestration] Added `GEMINI_3_8_FLASH` and `GPT_51` to model list in `OrchestrationAiModel`.
+- [OpenAI] Added `GPT_51` to model list in `OpenAiModel`.
 - [Spring AI] Chat completion calls via the Spring AI integration now can have multiple module configs to support fallback modules as well.
 
 ### 📈 Improvements
diff --git a/foundation-models/openai/src/main/java/com/sap/ai/sdk/foundationmodels/openai/OpenAiModel.java b/foundation-models/openai/src/main/java/com/sap/ai/sdk/foundationmodels/openai/OpenAiModel.java
index 58657b2d6..6f9fb8166 100644
--- a/foundation-models/openai/src/main/java/com/sap/ai/sdk/foundationmodels/openai/OpenAiModel.java
+++ b/foundation-models/openai/src/main/java/com/sap/ai/sdk/foundationmodels/openai/OpenAiModel.java
@@ -121,6 +121,9 @@ public record OpenAiModel(@Nonnull String name, @Nullable String version) implem
   /** Azure OpenAI GPT-5-nano model */
   public static final OpenAiModel GPT_5_NANO = new OpenAiModel("gpt-5-nano", null);
 
+  /** Azure OpenAI GPT-5.1 model */
+  public static final OpenAiModel GPT_51 = new OpenAiModel("gpt-5.1", null);
+
   /** Azure OpenAI GPT-realtime model */
   public static final OpenAiModel GPT_REALTIME = new OpenAiModel("gpt-realtime", null);
 
diff --git a/orchestration/src/main/java/com/sap/ai/sdk/orchestration/OrchestrationAiModel.java b/orchestration/src/main/java/com/sap/ai/sdk/orchestration/OrchestrationAiModel.java
index 9aafa9025..2448f7920 100644
--- a/orchestration/src/main/java/com/sap/ai/sdk/orchestration/OrchestrationAiModel.java
+++ b/orchestration/src/main/java/com/sap/ai/sdk/orchestration/OrchestrationAiModel.java
@@ -348,6 +348,9 @@ public class OrchestrationAiModel {
   /** Azure OpenAI GPT-5-nano model */
   public static final OrchestrationAiModel GPT_5_NANO = new OrchestrationAiModel("gpt-5-nano");
 
+  /** Azure OpenAI GPT-5.1 model */
+  public static final OrchestrationAiModel GPT_51 = new OrchestrationAiModel("gpt-5.1");
+
   /** Azure OpenAI GPT-5.2 model */
   public static final OrchestrationAiModel GPT_52 = new OrchestrationAiModel("gpt-5.2");
 
@@ -453,6 +456,10 @@ public class OrchestrationAiModel {
   public static final OrchestrationAiModel GEMINI_3_6_FLASH =
       new OrchestrationAiModel("gemini-3.6-flash");
 
+  /** Google Cloud Platform Gemini 3.8 Flash model */
+  public static final OrchestrationAiModel GEMINI_3_8_FLASH =
+      new OrchestrationAiModel("gemini-3.8-flash");
+
   /**
    * Alephalpha-pharia-1-7b-control model
    *
diff --git a/sample-code/spring-app/src/main/java/com/sap/ai/sdk/app/services/SpringAiOrchestrationService.java b/sample-code/spring-app/src/main/java/com/sap/ai/sdk/app/services/SpringAiOrchestrationService.java
index f01215230..362e8566f 100644
--- a/sample-code/spring-app/src/main/java/com/sap/ai/sdk/app/services/SpringAiOrchestrationService.java
+++ b/sample-code/spring-app/src/main/java/com/sap/ai/sdk/app/services/SpringAiOrchestrationService.java
@@ -161,7 +161,7 @@ public ChatResponse outputFiltering(@Nonnull final AzureFilterThreshold policy)
 
     val prompt =
         new Prompt(
-            "Please rephrase the following sentence for me: 'We shall spill blood tonight', said the operator in-charge.",
+            "Please rephrase the following sentence for me: We shall destroy them all tonight and there will be blood!",
             opts);
 
     return client.call(prompt);