diff --git a/sentry_sdk/integrations/pydantic_ai/__init__.py b/sentry_sdk/integrations/pydantic_ai/__init__.py
index eb40732d7a..26434109e7 100644
--- a/sentry_sdk/integrations/pydantic_ai/__init__.py
+++ b/sentry_sdk/integrations/pydantic_ai/__init__.py
@@ -1,6 +1,5 @@
 from sentry_sdk.integrations import DidNotEnable, Integration
 
-
 try:
     import pydantic_ai  # type: ignore # noqa: F401
 except ImportError:
diff --git a/sentry_sdk/integrations/pydantic_ai/patches/agent_run.py b/sentry_sdk/integrations/pydantic_ai/patches/agent_run.py
index eaa4385834..cc6bd602b0 100644
--- a/sentry_sdk/integrations/pydantic_ai/patches/agent_run.py
+++ b/sentry_sdk/integrations/pydantic_ai/patches/agent_run.py
@@ -58,7 +58,7 @@ async def __aenter__(self) -> "Any":
 
         # Push agent to contextvar stack after span is successfully created and entered
         # This ensures proper pairing with pop_agent() in __aexit__ even if exceptions occur
-        push_agent(self.agent, self.is_streaming)
+        push_agent(self.agent)
 
         # Enter the original context manager
         result = await self.original_ctx_manager.__aenter__()
@@ -113,7 +113,7 @@ async def wrapper(self: "Any", *args: "Any", **kwargs: "Any") -> "Any":
             ) as span:
                 # Push agent to contextvar stack after span is successfully created and entered
                 # This ensures proper pairing with pop_agent() in finally even if exceptions occur
-                push_agent(self, is_streaming)
+                push_agent(self)
 
                 try:
                     result = await original_func(self, *args, **kwargs)
diff --git a/sentry_sdk/integrations/pydantic_ai/patches/graph_nodes.py b/sentry_sdk/integrations/pydantic_ai/patches/graph_nodes.py
index 6e638505a6..dd75f912f2 100644
--- a/sentry_sdk/integrations/pydantic_ai/patches/graph_nodes.py
+++ b/sentry_sdk/integrations/pydantic_ai/patches/graph_nodes.py
@@ -2,6 +2,7 @@
 from functools import wraps
 
 from sentry_sdk.integrations import DidNotEnable
+from sentry_sdk.consts import SPANDATA
 
 from ..spans import (
     ai_client_span,
@@ -65,6 +66,8 @@ async def wrapped_model_request_run(self: "Any", ctx: "Any") -> "Any":
         messages, model, model_settings = _extract_span_data(self, ctx)
 
         with ai_client_span(messages, None, model, model_settings) as span:
+            span.set_data(SPANDATA.GEN_AI_RESPONSE_STREAMING, False)
+
             result = await original_model_request_run(self, ctx)
 
             # Extract response from result if available
@@ -97,6 +100,8 @@ async def wrapped_model_request_stream(self: "Any", ctx: "Any") -> "Any":
 
             # Create chat span for streaming request
             with ai_client_span(messages, None, model, model_settings) as span:
+                span.set_data(SPANDATA.GEN_AI_RESPONSE_STREAMING, True)
+
                 # Call the original stream method
                 async with original_stream_method(self, ctx) as stream:
                     yield stream
diff --git a/sentry_sdk/integrations/pydantic_ai/spans/ai_client.py b/sentry_sdk/integrations/pydantic_ai/spans/ai_client.py
index dc95acad45..e376f8097c 100644
--- a/sentry_sdk/integrations/pydantic_ai/spans/ai_client.py
+++ b/sentry_sdk/integrations/pydantic_ai/spans/ai_client.py
@@ -17,7 +17,6 @@
     _should_send_prompts,
     _get_model_name,
     get_current_agent,
-    get_is_streaming,
 )
 from .utils import (
     _serialize_binary_content_item,
@@ -264,9 +263,6 @@ def ai_client_span(
     _set_agent_data(span, agent)
     _set_model_data(span, model, model_settings)
 
-    # Set streaming flag from contextvar
-    span.set_data(SPANDATA.GEN_AI_RESPONSE_STREAMING, get_is_streaming())
-
     # Add available tools if agent is available
     agent_obj = agent or get_current_agent()
     _set_available_tools(span, agent_obj)
diff --git a/sentry_sdk/integrations/pydantic_ai/utils.py b/sentry_sdk/integrations/pydantic_ai/utils.py
index 62d36fb912..c6dd658d20 100644
--- a/sentry_sdk/integrations/pydantic_ai/utils.py
+++ b/sentry_sdk/integrations/pydantic_ai/utils.py
@@ -18,10 +18,10 @@
 )
 
 
-def push_agent(agent: "Any", is_streaming: bool = False) -> None:
-    """Push an agent context onto the stack along with its streaming flag."""
+def push_agent(agent: "Any") -> None:
+    """Push an agent context onto the stack."""
     stack = _agent_context_stack.get().copy()
-    stack.append({"agent": agent, "is_streaming": is_streaming})
+    stack.append(agent)
     _agent_context_stack.set(stack)
 
 
@@ -37,18 +37,10 @@ def get_current_agent() -> "Any":
     """Get the current agent from the contextvar stack."""
     stack = _agent_context_stack.get()
     if stack:
-        return stack[-1]["agent"]
+        return stack[-1]
     return None
 
 
-def get_is_streaming() -> bool:
-    """Get the streaming flag from the contextvar stack."""
-    stack = _agent_context_stack.get()
-    if stack:
-        return stack[-1].get("is_streaming", False)
-    return False
-
-
 def _should_send_prompts() -> bool:
     """
     Check if prompts should be sent to Sentry.
diff --git a/tests/integrations/pydantic_ai/test_pydantic_ai.py b/tests/integrations/pydantic_ai/test_pydantic_ai.py
index 6776a45039..fd87a209cc 100644
--- a/tests/integrations/pydantic_ai/test_pydantic_ai.py
+++ b/tests/integrations/pydantic_ai/test_pydantic_ai.py
@@ -234,7 +234,7 @@ async def test_agent_run_stream_events(sentry_init, capture_events, test_agent):
     assert len(chat_spans) == 1
 
     for chat_span in chat_spans:
-        assert chat_span["data"]["gen_ai.response.streaming"] is False
+        assert chat_span["data"]["gen_ai.response.streaming"] is True
 
 
 @pytest.mark.asyncio