diff --git a/models/spring-ai-anthropic/src/main/java/org/springframework/ai/anthropic/AnthropicChatModel.java b/models/spring-ai-anthropic/src/main/java/org/springframework/ai/anthropic/AnthropicChatModel.java
index dfa402674..c79b611dc 100644
--- a/models/spring-ai-anthropic/src/main/java/org/springframework/ai/anthropic/AnthropicChatModel.java
+++ b/models/spring-ai-anthropic/src/main/java/org/springframework/ai/anthropic/AnthropicChatModel.java
@@ -70,6 +70,7 @@ import reactor.core.publisher.Mono;
  * @author luocongqiu
  * @author Mariusz Bernacki
  * @author Thomas Vitale
+ * @author Claudio Silva Junior
  * @since 1.0.0
  */
 public class AnthropicChatModel extends AbstractToolCallSupport implements ChatModel {
@@ -293,6 +294,12 @@ public class AnthropicChatModel extends AbstractToolCallSupport implements ChatM
 
 		List<Generation> allGenerations = new ArrayList<>(generations);
 
+		if (chatCompletion.stopReason() != null && generations.isEmpty()) {
+			Generation generation = new Generation(new AssistantMessage(null, Map.of()),
+					ChatGenerationMetadata.from(chatCompletion.stopReason(), null));
+			allGenerations.add(generation);
+		}
+
 		List<ContentBlock> toolToUseList = chatCompletion.content()
 			.stream()
 			.filter(c -> c.type() == ContentBlock.Type.TOOL_USE)
diff --git a/models/spring-ai-anthropic/src/test/java/org/springframework/ai/anthropic/AnthropicChatModelObservationIT.java b/models/spring-ai-anthropic/src/test/java/org/springframework/ai/anthropic/AnthropicChatModelObservationIT.java
index d01de8ee0..e257d8a4f 100644
--- a/models/spring-ai-anthropic/src/test/java/org/springframework/ai/anthropic/AnthropicChatModelObservationIT.java
+++ b/models/spring-ai-anthropic/src/test/java/org/springframework/ai/anthropic/AnthropicChatModelObservationIT.java
@@ -118,7 +118,7 @@ public class AnthropicChatModelObservationIT {
 		ChatResponseMetadata responseMetadata = lastChatResponse.getMetadata();
 		assertThat(responseMetadata).isNotNull();
 
-		validate(responseMetadata, KeyValue.NONE_VALUE);
+		validate(responseMetadata, "[\"end_turn\"]");
 	}
 
 	private void validate(ChatResponseMetadata responseMetadata, String finishReasons) {