diff --git a/sentry_sdk/integrations/anthropic.py b/sentry_sdk/integrations/anthropic.py
index 553e703b62..208a4706f5 100644
--- a/sentry_sdk/integrations/anthropic.py
+++ b/sentry_sdk/integrations/anthropic.py
@@ -124,6 +124,7 @@ def _set_input_data(span, kwargs, integration):
     """
     Set input data for the span based on the provided keyword arguments for the anthropic message creation.
     """
+    set_data_normalized(span, SPANDATA.GEN_AI_OPERATION_NAME, "chat")
     system_prompt = kwargs.get("system")
     messages = kwargs.get("messages")
     if (
diff --git a/tests/integrations/anthropic/test_anthropic.py b/tests/integrations/anthropic/test_anthropic.py
index c1d449f892..2204505d47 100644
--- a/tests/integrations/anthropic/test_anthropic.py
+++ b/tests/integrations/anthropic/test_anthropic.py
@@ -118,6 +118,7 @@ def test_nonstreaming_create_message(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -187,6 +188,7 @@ async def test_nonstreaming_create_message_async(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -287,6 +289,7 @@ def test_streaming_create_message(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -391,6 +394,7 @@ async def test_streaming_create_message_async(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -522,6 +526,7 @@ def test_streaming_create_message_with_input_json_delta(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -662,6 +667,7 @@ async def test_streaming_create_message_with_input_json_delta_async(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -725,6 +731,7 @@ def test_span_status_error(sentry_init, capture_events):
     assert transaction["spans"][0]["status"] == "internal_error"
     assert transaction["spans"][0]["tags"]["status"] == "internal_error"
     assert transaction["contexts"]["trace"]["status"] == "internal_error"
+    assert transaction["spans"][0]["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
 
 
 @pytest.mark.asyncio
@@ -749,6 +756,7 @@ async def test_span_status_error_async(sentry_init, capture_events):
     assert transaction["spans"][0]["status"] == "internal_error"
     assert transaction["spans"][0]["tags"]["status"] == "internal_error"
     assert transaction["contexts"]["trace"]["status"] == "internal_error"
+    assert transaction["spans"][0]["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
 
 
 @pytest.mark.asyncio
@@ -796,6 +804,7 @@ def test_span_origin(sentry_init, capture_events):
 
     assert event["contexts"]["trace"]["origin"] == "manual"
     assert event["spans"][0]["origin"] == "auto.ai.anthropic"
+    assert event["spans"][0]["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
 
 
 @pytest.mark.asyncio
@@ -823,6 +832,7 @@ async def test_span_origin_async(sentry_init, capture_events):
 
     assert event["contexts"]["trace"]["origin"] == "manual"
     assert event["spans"][0]["origin"] == "auto.ai.anthropic"
+    assert event["spans"][0]["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
 
 
 @pytest.mark.skipif(
@@ -926,6 +936,7 @@ def mock_messages_create(*args, **kwargs):
 
     # Verify that the span was created correctly
     assert span["op"] == "gen_ai.chat"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert SPANDATA.GEN_AI_REQUEST_MESSAGES in span["data"]
 
     # Parse the stored messages
@@ -985,6 +996,7 @@ def test_anthropic_message_truncation(sentry_init, capture_events):
     assert len(chat_spans) > 0
 
     chat_span = chat_spans[0]
+    assert chat_span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert SPANDATA.GEN_AI_REQUEST_MESSAGES in chat_span["data"]
 
     messages_data = chat_span["data"][SPANDATA.GEN_AI_REQUEST_MESSAGES]
@@ -1052,6 +1064,7 @@ def test_nonstreaming_create_message_with_system_prompt(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -1130,6 +1143,7 @@ async def test_nonstreaming_create_message_with_system_prompt_async(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -1240,6 +1254,7 @@ def test_streaming_create_message_with_system_prompt(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -1354,6 +1369,7 @@ async def test_streaming_create_message_with_system_prompt_async(
 
     assert span["op"] == OP.GEN_AI_CHAT
     assert span["description"] == "chat model"
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert span["data"][SPANDATA.GEN_AI_REQUEST_MODEL] == "model"
 
     if send_default_pii and include_prompts:
@@ -1414,6 +1430,7 @@ def test_system_prompt_with_complex_structure(sentry_init, capture_events):
     assert len(event["spans"]) == 1
     (span,) = event["spans"]
 
+    assert span["data"][SPANDATA.GEN_AI_OPERATION_NAME] == "chat"
     assert SPANDATA.GEN_AI_REQUEST_MESSAGES in span["data"]
     stored_messages = json.loads(span["data"][SPANDATA.GEN_AI_REQUEST_MESSAGES])