diff --git a/spring-ai-client-chat/src/main/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChain.java b/spring-ai-client-chat/src/main/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChain.java
index c86fa0b1b6..c16e24b0dc 100644
--- a/spring-ai-client-chat/src/main/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChain.java
+++ b/spring-ai-client-chat/src/main/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChain.java
@@ -175,6 +175,7 @@ private DefaultAroundAdvisorChain copyAdvisorsAfter(List<? extends Advisor> advi
 		var remainingStreamAdvisors = advisors.subList(afterAdvisorIndex + 1, advisors.size());
 
 		return DefaultAroundAdvisorChain.builder(this.getObservationRegistry())
+			.observationConvention(this.observationConvention)
 			.pushAll(remainingStreamAdvisors)
 			.build();
 	}
@@ -194,6 +195,10 @@ public ObservationRegistry getObservationRegistry() {
 		return this.observationRegistry;
 	}
 
+	public AdvisorObservationConvention getObservationConvention() {
+		return this.observationConvention;
+	}
+
 	public static final class Builder {
 
 		private final ObservationRegistry observationRegistry;
diff --git a/spring-ai-client-chat/src/test/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChainTests.java b/spring-ai-client-chat/src/test/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChainTests.java
index 7202cff7dc..3bfb62ed53 100644
--- a/spring-ai-client-chat/src/test/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChainTests.java
+++ b/spring-ai-client-chat/src/test/java/org/springframework/ai/chat/client/advisor/DefaultAroundAdvisorChainTests.java
@@ -31,6 +31,8 @@
 import org.springframework.ai.chat.client.advisor.api.CallAdvisorChain;
 import org.springframework.ai.chat.client.advisor.api.StreamAdvisor;
 import org.springframework.ai.chat.client.advisor.api.StreamAdvisorChain;
+import org.springframework.ai.chat.client.advisor.observation.AdvisorObservationConvention;
+import org.springframework.ai.chat.client.advisor.observation.DefaultAdvisorObservationConvention;
 import org.springframework.ai.chat.prompt.Prompt;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -245,6 +247,71 @@ void whenCopyingChainThenObservationRegistryIsPreserved() {
 		assertThat(newChain.getObservationRegistry()).isSameAs(customRegistry);
 	}
 
+	@Test
+	void whenCopyingChainWithCustomObservationConventionThenConventionIsPreserved() {
+		CallAdvisor advisor1 = createMockAdvisor("advisor1", 1);
+		CallAdvisor advisor2 = createMockAdvisor("advisor2", 2);
+		CallAdvisor advisor3 = createMockAdvisor("advisor3", 3);
+
+		ObservationRegistry observationRegistry = ObservationRegistry.create();
+		AdvisorObservationConvention customConvention = new DefaultAdvisorObservationConvention("custom-convention") {
+		};
+
+		CallAdvisorChain chain = DefaultAroundAdvisorChain.builder(observationRegistry)
+			.observationConvention(customConvention)
+			.pushAll(List.of(advisor1, advisor2, advisor3))
+			.build();
+
+		CallAdvisorChain newChain = chain.copy(advisor1);
+
+		assertThat(newChain).isInstanceOf(DefaultAroundAdvisorChain.class);
+		assertThat(((DefaultAroundAdvisorChain) newChain).getObservationConvention().getName())
+			.isEqualTo("custom-convention");
+	}
+
+	@Test
+	void whenCopyingChainWithDefaultObservationConventionThenDefaultIsPreserved() {
+		CallAdvisor advisor1 = createMockAdvisor("advisor1", 1);
+		CallAdvisor advisor2 = createMockAdvisor("advisor2", 2);
+
+		ObservationRegistry observationRegistry = ObservationRegistry.create();
+		CallAdvisorChain chain = DefaultAroundAdvisorChain.builder(observationRegistry)
+			.pushAll(List.of(advisor1, advisor2))
+			.build();
+
+		CallAdvisorChain newChain = chain.copy(advisor1);
+
+		assertThat(newChain).isInstanceOf(DefaultAroundAdvisorChain.class);
+		assertThat(((DefaultAroundAdvisorChain) newChain).getObservationConvention().getName())
+			.isEqualTo("spring.ai.advisor");
+	}
+
+	@Test
+	void whenCopyingStreamChainThenObservationConventionIsPreserved() {
+		StreamAdvisor streamAdvisor1 = mock(StreamAdvisor.class);
+		when(streamAdvisor1.getName()).thenReturn("streamAdvisor1");
+		when(streamAdvisor1.adviseStream(any(), any())).thenReturn(Flux.just(ChatClientResponse.builder().build()));
+		StreamAdvisor streamAdvisor2 = mock(StreamAdvisor.class);
+		when(streamAdvisor2.getName()).thenReturn("streamAdvisor2");
+		when(streamAdvisor2.adviseStream(any(), any())).thenReturn(Flux.just(ChatClientResponse.builder().build()));
+
+		ObservationRegistry observationRegistry = ObservationRegistry.create();
+		AdvisorObservationConvention customConvention = new DefaultAdvisorObservationConvention(
+				"stream-custom-convention") {
+		};
+
+		StreamAdvisorChain chain = DefaultAroundAdvisorChain.builder(observationRegistry)
+			.observationConvention(customConvention)
+			.pushAll(List.of(streamAdvisor1, streamAdvisor2))
+			.build();
+
+		StreamAdvisorChain newChain = chain.copy(streamAdvisor1);
+
+		assertThat(newChain).isInstanceOf(DefaultAroundAdvisorChain.class);
+		assertThat(((DefaultAroundAdvisorChain) newChain).getObservationConvention().getName())
+			.isEqualTo("stream-custom-convention");
+	}
+
 	private CallAdvisor createMockAdvisor(String name, int order) {
 		return new CallAdvisor() {
 			@Override