diff --git a/.github/workflows/scheduled_test.yml b/.github/workflows/scheduled_test.yml
index 1b6522385de..e67d3afff42 100644
--- a/.github/workflows/scheduled_test.yml
+++ b/.github/workflows/scheduled_test.yml
@@ -19,11 +19,11 @@ jobs:
         working-directory:
           - "libs/partners/openai"
           - "libs/partners/anthropic"
-          # - "libs/partners/ai21"  # standard-tests broken
+          - "libs/partners/ai21"
           - "libs/partners/fireworks"
-          # - "libs/partners/groq"  # rate-limited
+          - "libs/partners/groq"
           - "libs/partners/mistralai"
-          # - "libs/partners/together"  # rate-limited
+          - "libs/partners/together"
     name: Python ${{ matrix.python-version }} - ${{ matrix.working-directory }}
     steps:
       - uses: actions/checkout@v4
diff --git a/libs/partners/ai21/tests/integration_tests/test_standard.py b/libs/partners/ai21/tests/integration_tests/test_standard.py
index 5c62b025999..2070ba3a701 100644
--- a/libs/partners/ai21/tests/integration_tests/test_standard.py
+++ b/libs/partners/ai21/tests/integration_tests/test_standard.py
@@ -19,3 +19,25 @@ class TestAI21Standard(ChatModelIntegrationTests):
         return {
             "model": "j2-ultra",
         }
+
+    @pytest.mark.xfail(reason="Emits AIMessage instead of AIMessageChunk.")
+    def test_stream(
+        self,
+        chat_model_class: Type[BaseChatModel],
+        chat_model_params: dict,
+    ) -> None:
+        super().test_stream(
+            chat_model_class,
+            chat_model_params,
+        )
+
+    @pytest.mark.xfail(reason="Emits AIMessage instead of AIMessageChunk.")
+    async def test_astream(
+        self,
+        chat_model_class: Type[BaseChatModel],
+        chat_model_params: dict,
+    ) -> None:
+        await super().test_astream(
+            chat_model_class,
+            chat_model_params,
+        )
diff --git a/libs/partners/groq/tests/integration_tests/test_standard.py b/libs/partners/groq/tests/integration_tests/test_standard.py
index 83ca841caa2..4048f7e8f6a 100644
--- a/libs/partners/groq/tests/integration_tests/test_standard.py
+++ b/libs/partners/groq/tests/integration_tests/test_standard.py
@@ -13,3 +13,14 @@ class TestMistralStandard(ChatModelIntegrationTests):
     @pytest.fixture
     def chat_model_class(self) -> Type[BaseChatModel]:
         return ChatGroq
+
+    @pytest.mark.xfail(reason="Not yet implemented.")
+    def test_tool_message_histories_list_content(
+        self,
+        chat_model_class: Type[BaseChatModel],
+        chat_model_params: dict,
+        chat_model_has_tool_calling: bool,
+    ) -> None:
+        super().test_tool_message_histories_list_content(
+            chat_model_class, chat_model_params, chat_model_has_tool_calling
+        )