Continue GC code review: Pydantic

tests/providers/test_openrouter.py

@@ -122,7 +122,7 @@ class TestOpenRouterProviderTranscribe:
         assert result.provider == "openrouter"
         assert result.prompt_name is None
         assert result.model == "vendor/model-b"
-        assert result.ai_metadata == {
+        assert result.metadata_payload() == {
             "finish_reason": "stop",
             "usage": {"input_tokens": 10, "output_tokens": 25, "total_tokens": 35},
         }
@@ -178,3 +178,25 @@ class TestOpenRouterProviderTranscribe:
                 image_bytes=b"img-bytes",
                 mime_type="image/png",
             )
+
+    @pytest.mark.asyncio
+    async def test_ignores_invalid_token_metadata_without_discarding_transcript(self):
+        response = {
+            "model": "vendor/model-a",
+            "choices": [{"message": {"content": "Transcript text"}}],
+            "usage": {"prompt_tokens": -1},
+        }
+        provider = OpenRouterTranscriptionProvider(
+            settings=Settings(openrouter_api_key="test-key"),
+            client=_FakeClient(response=response),
+        )
+
+        result = await provider.transcribe(
+            prompt_text="Prompt body",
+            image_bytes=b"img-bytes",
+            mime_type="image/png",
+        )
+
+        assert result.text == "Transcript text"
+        assert result.metadata_payload() is None
+        assert result.raw_api_response == response