diff --git a/src/openrouter_agent/__init__.py b/src/openrouter_agent/__init__.py
index 5df8a08..5036ce4 100644
--- a/src/openrouter_agent/__init__.py
+++ b/src/openrouter_agent/__init__.py
@@ -39,7 +39,6 @@
     OpenResponsesResult,
     OutputFileSearchCallItem,
     OutputFunctionCallItem,
-    OutputImage,
     OutputImageGenerationCallItem,
     OutputItems,
     OutputMessage,
@@ -235,6 +234,21 @@ class BeforeCreateRequestHook(Protocol):
     def before_create_request(self, hook_ctx: BeforeCreateRequestContext, request: Any) -> Any: ...
 
 
+# openrouter 1.1.40 renamed OutputImage to CodeInterpreterImageOutput with no
+# back-compat alias, and this package's constraint (openrouter>=1.1,<2) spans
+# both. The two models are structurally identical (type, url) and this package
+# only re-exports the type, so bind whichever name the installed SDK provides
+# to keep OutputImage / OutputInputImage stable for consumers.
+# Both ignores are load-bearing across the range, not just today: mypy resolves
+# against the locked SDK, so exactly one of these two imports is unresolvable at
+# any given pin, and which one flips when the lock crosses 1.1.40.
+try:
+    from openrouter.components import OutputImage  # type: ignore[attr-defined]
+except ImportError:  # openrouter >= 1.1.40
+    from openrouter.components import (  # type: ignore[assignment, no-redef]
+        CodeInterpreterImageOutput as OutputImage,
+    )
+
 OutputInputImage = OutputImage
 
 __all__ = [
diff --git a/tests/unit/test_sdk_compat_exports.py b/tests/unit/test_sdk_compat_exports.py
new file mode 100644
index 0000000..5631743
--- /dev/null
+++ b/tests/unit/test_sdk_compat_exports.py
@@ -0,0 +1,28 @@
+"""Guards the public re-exports that the generated SDK has renamed under us.
+
+The package constraint is ``openrouter>=1.1,<2``, so a plain install resolves
+whatever 1.1.x is newest. A symbol this package re-exports by name can vanish
+inside that range -- openrouter 1.1.40 renamed ``OutputImage`` -- and the
+failure mode is an ImportError at ``import openrouter_agent``, i.e. the whole
+package, not just the renamed type.
+"""
+
+from __future__ import annotations
+
+import openrouter_agent
+
+
+def test_output_image_is_exported_under_both_names() -> None:
+    assert openrouter_agent.OutputImage is openrouter_agent.OutputInputImage
+
+
+def test_output_image_has_the_code_interpreter_image_shape() -> None:
+    fields = openrouter_agent.OutputImage.model_fields
+
+    assert set(fields) == {"type", "url"}
+
+
+def test_declared_public_api_is_fully_importable() -> None:
+    missing = [name for name in openrouter_agent.__all__ if not hasattr(openrouter_agent, name)]
+
+    assert missing == []