diff --git a/docs/docs/integrations/chat/perplexity.ipynb b/docs/docs/integrations/chat/perplexity.ipynb
index f8f66c8d0c7..f74a410115f 100644
--- a/docs/docs/integrations/chat/perplexity.ipynb
+++ b/docs/docs/integrations/chat/perplexity.ipynb
@@ -45,7 +45,7 @@
     "The code provided assumes that your PPLX_API_KEY is set in your environment variables. If you would like to manually specify your API key and also choose a different model, you can use the following code:\n",
     "\n",
     "```python\n",
-    "chat = ChatPerplexity(temperature=0, pplx_api_key=\"YOUR_API_KEY\", model=\"pplx-70b-online\")\n",
+    "chat = ChatPerplexity(temperature=0, pplx_api_key=\"YOUR_API_KEY\", model=\"llama-3-sonar-small-32k-online\")\n",
     "```\n",
     "\n",
     "You can check a list of available models [here](https://docs.perplexity.ai/docs/model-cards). For reproducibility, we can set the API key dynamically by taking it as an input in this notebook."
@@ -78,7 +78,7 @@
    },
    "outputs": [],
    "source": [
-    "chat = ChatPerplexity(temperature=0, model=\"pplx-70b-online\")"
+    "chat = ChatPerplexity(temperature=0, model=\"llama-3-sonar-small-32k-online\")"
    ]
   },
   {
@@ -146,7 +146,7 @@
     }
    ],
    "source": [
-    "chat = ChatPerplexity(temperature=0, model=\"pplx-70b-online\")\n",
+    "chat = ChatPerplexity(temperature=0, model=\"llama-3-sonar-small-32k-online\")\n",
     "prompt = ChatPromptTemplate.from_messages([(\"human\", \"Tell me a joke about {topic}\")])\n",
     "chain = prompt | chat\n",
     "response = chain.invoke({\"topic\": \"cats\"})\n",
@@ -195,7 +195,7 @@
     }
    ],
    "source": [
-    "chat = ChatPerplexity(temperature=0.7, model=\"pplx-70b-online\")\n",
+    "chat = ChatPerplexity(temperature=0.7, model=\"llama-3-sonar-small-32k-online\")\n",
     "prompt = ChatPromptTemplate.from_messages(\n",
     "    [(\"human\", \"Give me a list of famous tourist attractions in Pakistan\")]\n",
     ")\n",
diff --git a/libs/community/langchain_community/chat_models/perplexity.py b/libs/community/langchain_community/chat_models/perplexity.py
index e03f820cddf..6295ba63c6f 100644
--- a/libs/community/langchain_community/chat_models/perplexity.py
+++ b/libs/community/langchain_community/chat_models/perplexity.py
@@ -54,11 +54,14 @@ class ChatPerplexity(BaseChatModel):
 
             from langchain_community.chat_models import ChatPerplexity
 
-            chat = ChatPerplexity(model="pplx-70b-online", temperature=0.7)
+            chat = ChatPerplexity(
+                model="llama-3-sonar-small-32k-online",
+                temperature=0.7,
+            )
     """
 
     client: Any  #: :meta private:
-    model: str = "pplx-70b-online"
+    model: str = "llama-3-sonar-small-32k-online"
     """Model name."""
     temperature: float = 0.7
     """What sampling temperature to use."""