diff --git a/integrations/google_ai/src/haystack_integrations/components/generators/google_ai/gemini.py b/integrations/google_ai/src/haystack_integrations/components/generators/google_ai/gemini.py
index b032169df..fd3ddd7bf 100644
--- a/integrations/google_ai/src/haystack_integrations/components/generators/google_ai/gemini.py
+++ b/integrations/google_ai/src/haystack_integrations/components/generators/google_ai/gemini.py
@@ -101,11 +101,11 @@ def __init__(
         genai.configure(api_key=api_key.resolve_value())
 
         self._api_key = api_key
-        self._model_name = model
-        self._generation_config = generation_config
-        self._safety_settings = safety_settings
-        self._model = GenerativeModel(self._model_name)
-        self._streaming_callback = streaming_callback
+        self.model_name = model
+        self.generation_config = generation_config
+        self.safety_settings = safety_settings
+        self._model = GenerativeModel(self.model_name)
+        self.streaming_callback = streaming_callback
 
     def _generation_config_to_dict(self, config: Union[GenerationConfig, Dict[str, Any]]) -> Dict[str, Any]:
         if isinstance(config, dict):
@@ -126,13 +126,13 @@ def to_dict(self) -> Dict[str, Any]:
         :returns:
             Dictionary with serialized data.
         """
-        callback_name = serialize_callable(self._streaming_callback) if self._streaming_callback else None
+        callback_name = serialize_callable(self.streaming_callback) if self.streaming_callback else None
         data = default_to_dict(
             self,
             api_key=self._api_key.to_dict(),
-            model=self._model_name,
-            generation_config=self._generation_config,
-            safety_settings=self._safety_settings,
+            model=self.model_name,
+            generation_config=self.generation_config,
+            safety_settings=self.safety_settings,
             streaming_callback=callback_name,
         )
         if (generation_config := data["init_parameters"].get("generation_config")) is not None:
@@ -198,13 +198,13 @@ def run(
         """
 
         # check if streaming_callback is passed
-        streaming_callback = streaming_callback or self._streaming_callback
+        streaming_callback = streaming_callback or self.streaming_callback
         converted_parts = [self._convert_part(p) for p in parts]
         contents = [Content(parts=converted_parts, role="user")]
         res = self._model.generate_content(
             contents=contents,
-            generation_config=self._generation_config,
-            safety_settings=self._safety_settings,
+            generation_config=self.generation_config,
+            safety_settings=self.safety_settings,
             stream=streaming_callback is not None,
         )
         self._model.start_chat()
diff --git a/integrations/google_ai/tests/generators/test_gemini.py b/integrations/google_ai/tests/generators/test_gemini.py
index 07d194a59..eb09514eb 100644
--- a/integrations/google_ai/tests/generators/test_gemini.py
+++ b/integrations/google_ai/tests/generators/test_gemini.py
@@ -18,7 +18,7 @@ def test_init(monkeypatch):
         max_output_tokens=10,
         temperature=0.5,
         top_p=0.5,
-        top_k=0.5,
+        top_k=1,
     )
     safety_settings = {HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT: HarmBlockThreshold.BLOCK_ONLY_HIGH}
 
@@ -28,9 +28,9 @@ def test_init(monkeypatch):
             safety_settings=safety_settings,
         )
     mock_genai_configure.assert_called_once_with(api_key="test")
-    assert gemini._model_name == "gemini-1.5-flash"
-    assert gemini._generation_config == generation_config
-    assert gemini._safety_settings == safety_settings
+    assert gemini.model_name == "gemini-1.5-flash"
+    assert gemini.generation_config == generation_config
+    assert gemini.safety_settings == safety_settings
     assert isinstance(gemini._model, GenerativeModel)
 
 
@@ -105,7 +105,7 @@ def test_from_dict_with_param(monkeypatch):
                     "generation_config": {
                         "temperature": 0.5,
                         "top_p": 0.5,
-                        "top_k": 0.5,
+                        "top_k": 1,
                         "candidate_count": 1,
                         "max_output_tokens": 10,
                         "stop_sequences": ["stop"],
@@ -116,16 +116,16 @@ def test_from_dict_with_param(monkeypatch):
             }
         )
 
-    assert gemini._model_name == "gemini-1.5-flash"
-    assert gemini._generation_config == GenerationConfig(
+    assert gemini.model_name == "gemini-1.5-flash"
+    assert gemini.generation_config == GenerationConfig(
         candidate_count=1,
         stop_sequences=["stop"],
         max_output_tokens=10,
         temperature=0.5,
         top_p=0.5,
-        top_k=0.5,
+        top_k=1,
     )
-    assert gemini._safety_settings == {HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT: HarmBlockThreshold.BLOCK_ONLY_HIGH}
+    assert gemini.safety_settings == {HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT: HarmBlockThreshold.BLOCK_ONLY_HIGH}
     assert isinstance(gemini._model, GenerativeModel)
 
 
@@ -141,7 +141,7 @@ def test_from_dict(monkeypatch):
                     "generation_config": {
                         "temperature": 0.5,
                         "top_p": 0.5,
-                        "top_k": 0.5,
+                        "top_k": 1,
                         "candidate_count": 1,
                         "max_output_tokens": 10,
                         "stop_sequences": ["stop"],
@@ -152,16 +152,16 @@ def test_from_dict(monkeypatch):
             }
         )
 
-    assert gemini._model_name == "gemini-1.5-flash"
-    assert gemini._generation_config == GenerationConfig(
+    assert gemini.model_name == "gemini-1.5-flash"
+    assert gemini.generation_config == GenerationConfig(
         candidate_count=1,
         stop_sequences=["stop"],
         max_output_tokens=10,
         temperature=0.5,
         top_p=0.5,
-        top_k=0.5,
+        top_k=1,
     )
-    assert gemini._safety_settings == {HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT: HarmBlockThreshold.BLOCK_ONLY_HIGH}
+    assert gemini.safety_settings == {HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT: HarmBlockThreshold.BLOCK_ONLY_HIGH}
     assert isinstance(gemini._model, GenerativeModel)