diff --git a/libs/langgraph/langgraph/_internal/_runnable.py b/libs/langgraph/langgraph/_internal/_runnable.py
index 0fff6d76b..ed0e2605a 100644
--- a/libs/langgraph/langgraph/_internal/_runnable.py
+++ b/libs/langgraph/langgraph/_internal/_runnable.py
@@ -422,7 +422,9 @@ class RunnableCallable(Runnable):
             else:
                 run_manager.on_chain_end(ret)
         else:
-            ret = self.func(*args, **kwargs)
+            # Still need to set config context for get_config() to work
+            with set_config_context(config, None) as context:
+                ret = context.run(self.func, *args, **kwargs)
         if self.recurse and isinstance(ret, Runnable):
             return ret.invoke(input, config)
         return ret
@@ -495,7 +497,13 @@ class RunnableCallable(Runnable):
             else:
                 await run_manager.on_chain_end(ret)
         else:
-            ret = await self.afunc(*args, **kwargs)
+            # Still need to set config context for get_config() to work
+            coro = cast(Coroutine[None, None, Any], self.afunc(*args, **kwargs))
+            if ASYNCIO_ACCEPTS_CONTEXT:
+                with set_config_context(config, None) as context:
+                    ret = await asyncio.create_task(coro, context=context)
+            else:
+                ret = await coro
         if self.recurse and isinstance(ret, Runnable):
             return await ret.ainvoke(input, config)
         return ret
@@ -698,12 +706,14 @@ class RunnableSeq(Runnable):
                 run_manager.on_chain_end(_process_outputs(self.trace_outputs, input))
                 return input
         else:
-            for i, step in enumerate(self.steps):
-                input = (
-                    step.invoke(input, config, **kwargs)
-                    if i == 0
-                    else step.invoke(input, config)
-                )
+            # Still need to set config context for get_config() to work
+            with set_config_context(config, None) as context:
+                for i, step in enumerate(self.steps):
+                    input = (
+                        context.run(step.invoke, input, config, **kwargs)
+                        if i == 0
+                        else step.invoke(input, config)
+                    )
             return input
 
     async def ainvoke(
@@ -764,11 +774,22 @@ class RunnableSeq(Runnable):
                 )
                 return input
         else:
-            for i, step in enumerate(self.steps):
-                if i == 0:
-                    input = await step.ainvoke(input, config, **kwargs)
-                else:
-                    input = await step.ainvoke(input, config)
+            # Still need to set config context for get_config() to work
+            if ASYNCIO_ACCEPTS_CONTEXT:
+                with set_config_context(config, None) as context:
+                    for i, step in enumerate(self.steps):
+                        if i == 0:
+                            input = await asyncio.create_task(
+                                step.ainvoke(input, config, **kwargs), context=context
+                            )
+                        else:
+                            input = await step.ainvoke(input, config)
+            else:
+                for i, step in enumerate(self.steps):
+                    if i == 0:
+                        input = await step.ainvoke(input, config, **kwargs)
+                    else:
+                        input = await step.ainvoke(input, config)
             return input
 
     def stream(
@@ -837,13 +858,14 @@ class RunnableSeq(Runnable):
                         _process_outputs(self.trace_outputs, output)
                     )
         else:
-            # No tracing - just execute the steps directly
-            for idx, step in enumerate(self.steps):
-                if idx == 0:
-                    iterator = step.stream(input, config, **kwargs)
-                else:
-                    iterator = step.transform(iterator, config)
-            _consume_iter(iterator)
+            # No tracing - still need to set config context for get_config() to work
+            with set_config_context(config, None) as context:
+                for idx, step in enumerate(self.steps):
+                    if idx == 0:
+                        iterator = step.stream(input, config, **kwargs)
+                    else:
+                        iterator = step.transform(iterator, config)
+                context.run(_consume_iter, iterator)
             yield
 
     async def astream(
diff --git a/libs/langgraph/tests/test_traceable_integration.py b/libs/langgraph/tests/test_traceable_integration.py
index d8a736740..a4a3235ef 100644
--- a/libs/langgraph/tests/test_traceable_integration.py
+++ b/libs/langgraph/tests/test_traceable_integration.py
@@ -1048,3 +1048,41 @@ async def test_astream_events_traceable_filters_traced_inputs():
         if e["event"] == "on_chain_end" and e["name"] == "LangGraph"
     )
     assert final_event["data"]["output"] == {"value": "b_a_secret_data"}
+
+
+# =============================================================================
+# get_config() Compatibility Tests
+# =============================================================================
+
+
+def test_traceable_enabled_false_allows_get_config():
+    """Test that nodes with enabled=False can still call get_config().
+
+    This is a regression test for a bug where the trace=False path in
+    RunnableSeq skipped set_config_context(), breaking get_config() calls.
+    """
+    from langgraph.config import get_config
+
+    config_thread_id = None
+
+    def my_node(state: SimpleState) -> SimpleState:
+        nonlocal config_thread_id
+        config = get_config()  # This should work even with enabled=False!
+        config_thread_id = config.get("configurable", {}).get("thread_id")
+        return {"value": f"got_config_{state['value']}"}
+
+    _set_traceable_config(my_node, enabled=False)
+
+    builder = StateGraph(SimpleState)
+    builder.add_node("my_node", my_node)
+    builder.add_edge("__start__", "my_node")
+    graph = builder.compile()
+
+    result = graph.invoke(
+        {"value": "test"}, {"configurable": {"thread_id": "test-thread-123"}}
+    )
+
+    assert result == {"value": "got_config_test"}
+    assert config_thread_id == "test-thread-123", (
+        f"Expected thread_id 'test-thread-123', got {config_thread_id}"
+    )