diff --git a/libs/core/langchain_core/load/load.py b/libs/core/langchain_core/load/load.py
index f7db2ff6f02..fb6e3ec2a1d 100644
--- a/libs/core/langchain_core/load/load.py
+++ b/libs/core/langchain_core/load/load.py
@@ -17,6 +17,7 @@ DEFAULT_NAMESPACES = [
     "langchain_core",
     "langchain_community",
     "langchain_anthropic",
+    "langchain_groq",
 ]
 
 ALL_SERIALIZABLE_MAPPINGS = {
diff --git a/libs/core/langchain_core/load/mapping.py b/libs/core/langchain_core/load/mapping.py
index 84c3878c5d8..c884d65ac55 100644
--- a/libs/core/langchain_core/load/mapping.py
+++ b/libs/core/langchain_core/load/mapping.py
@@ -271,6 +271,11 @@ SERIALIZABLE_MAPPING: Dict[Tuple[str, ...], Tuple[str, ...]] = {
         "chat_models",
         "ChatAnthropic",
     ),
+    ("langchain_groq", "chat_models", "ChatGroq"): (
+        "langchain_groq",
+        "chat_models",
+        "ChatGroq"
+    ),
     ("langchain", "chat_models", "fireworks", "ChatFireworks"): (
         "langchain_fireworks",
         "chat_models",
@@ -287,6 +292,11 @@ SERIALIZABLE_MAPPING: Dict[Tuple[str, ...], Tuple[str, ...]] = {
         "chat_models",
         "ChatVertexAI",
     ),
+    ("langchain", "chat_models", "mistralai", "ChatMistralAI"): (
+        "langchain_mistralai",
+        "chat_models",
+        "ChatMistralAI",
+    ),
     ("langchain", "schema", "output", "ChatGenerationChunk"): (
         "langchain_core",
         "outputs",
diff --git a/libs/partners/mistralai/langchain_mistralai/chat_models.py b/libs/partners/mistralai/langchain_mistralai/chat_models.py
index 06ee230d1f6..6a497bf91f0 100644
--- a/libs/partners/mistralai/langchain_mistralai/chat_models.py
+++ b/libs/partners/mistralai/langchain_mistralai/chat_models.py
@@ -359,8 +359,8 @@ def _convert_message_to_mistral_chat_message(
 class ChatMistralAI(BaseChatModel):
     """A chat model that uses the MistralAI API."""
 
-    client: httpx.Client = Field(default=None)  #: :meta private:
-    async_client: httpx.AsyncClient = Field(default=None)  #: :meta private:
+    client: httpx.Client = Field(default=None, exclude=True)  #: :meta private:
+    async_client: httpx.AsyncClient = Field(default=None, exclude=True)  #: :meta private:
     mistral_api_key: Optional[SecretStr] = Field(
         alias="api_key",
         default_factory=secret_from_env("MISTRAL_API_KEY", default=None),
diff --git a/libs/partners/mistralai/tests/unit_tests/__snapshots__/test_standard.ambr b/libs/partners/mistralai/tests/unit_tests/__snapshots__/test_standard.ambr
index 16389a8d9da..75bdad2decf 100644
--- a/libs/partners/mistralai/tests/unit_tests/__snapshots__/test_standard.ambr
+++ b/libs/partners/mistralai/tests/unit_tests/__snapshots__/test_standard.ambr
@@ -45,24 +45,6 @@
       'ChatMistralAI',
     ]),
     'kwargs': dict({
-      'async_client': dict({
-        'id': list([
-          'httpx',
-          'AsyncClient',
-        ]),
-        'lc': 1,
-        'repr': '<httpx.AsyncClient object at 0x1119d6990>',
-        'type': 'not_implemented',
-      }),
-      'client': dict({
-        'id': list([
-          'httpx',
-          'Client',
-        ]),
-        'lc': 1,
-        'repr': '<httpx.Client object at 0x1119d3b90>',
-        'type': 'not_implemented',
-      }),
       'endpoint': 'boo',
       'max_concurrent_requests': 64,
       'max_retries': 2,