diff --git a/docs/examples/openai/openai_async_chat.py b/docs/examples/openai/openai_async_chat.py
index 82f84d7..50d81de 100644
--- a/docs/examples/openai/openai_async_chat.py
+++ b/docs/examples/openai/openai_async_chat.py
@@ -17,8 +17,10 @@ async def callback(contents: str, user: str, instance: pn.chat.ChatInterface):
     )
     message = ""
     async for chunk in response:
-        message += chunk["choices"][0]["delta"].get("content", "")
-        yield message
+        part = chunk.choices[0].delta.content
+        if part is not None:
+            message += part
+            yield message
 
 
 aclient = AsyncOpenAI()
diff --git a/docs/examples/openai/openai_authentication.py b/docs/examples/openai/openai_authentication.py
index b37293f..39bb2fd 100644
--- a/docs/examples/openai/openai_authentication.py
+++ b/docs/examples/openai/openai_authentication.py
@@ -49,8 +49,10 @@ async def callback(
     )
     message = ""
     async for chunk in response:
-        message += chunk["choices"][0]["delta"].get("content", "")
-        yield message
+        part = chunk.choices[0].delta.content
+        if part is not None:
+            message += part
+            yield message
 
 
 aclient = AsyncOpenAI()
diff --git a/docs/examples/openai/openai_chat.py b/docs/examples/openai/openai_chat.py
index 79392e4..75357dd 100644
--- a/docs/examples/openai/openai_chat.py
+++ b/docs/examples/openai/openai_chat.py
@@ -17,8 +17,10 @@ async def callback(contents: str, user: str, instance: pn.chat.ChatInterface):
     )
     message = ""
     for chunk in response:
-        message += chunk["choices"][0]["delta"].get("content", "")
-        yield message
+        part = chunk.choices[0].delta.content
+        if part is not None:
+            message += part
+            yield message
 
 
 client = OpenAI()
diff --git a/docs/examples/openai/openai_hvplot.py b/docs/examples/openai/openai_hvplot.py
index 4169bb9..08a5e43 100644
--- a/docs/examples/openai/openai_hvplot.py
+++ b/docs/examples/openai/openai_hvplot.py
@@ -45,8 +45,10 @@ async def respond_with_openai(contents: Union[pd.DataFrame, str]):
     )
     message = ""
     async for chunk in response:
-        message += chunk["choices"][0]["delta"].get("content", "")
-        yield {"user": "ChatGPT", "object": message}
+        part = chunk.choices[0].delta.content
+        if part is not None:
+            message += part
+            yield {"user": "ChatGPT", "object": message}
 
 
 async def respond_with_executor(code: str):
diff --git a/docs/examples/openai/openai_image_generation.py b/docs/examples/openai/openai_image_generation.py
index 278bc2c..3ac943a 100644
--- a/docs/examples/openai/openai_image_generation.py
+++ b/docs/examples/openai/openai_image_generation.py
@@ -11,7 +11,7 @@
 
 def callback(contents: str, user: str, instance: pn.chat.ChatInterface):
     response = client.images.generate(prompt=contents, n=1, size="256x256")
-    image_url = response["data"][0]["url"]
+    image_url = response.data[0].url
     return pn.pane.Image(image_url, width=256, height=256)
 
 
diff --git a/docs/examples/openai/openai_two_bots.py b/docs/examples/openai/openai_two_bots.py
index 50723a5..f839194 100644
--- a/docs/examples/openai/openai_two_bots.py
+++ b/docs/examples/openai/openai_two_bots.py
@@ -31,8 +31,10 @@ async def callback(
     )
     message = ""
     async for chunk in response:
-        message += chunk["choices"][0]["delta"].get("content", "")
-        yield {"user": callback_user, "avatar": callback_avatar, "object": message}
+        part = chunk.choices[0].delta.content
+        if part is not None:
+            message += part
+            yield {"user": callback_user, "avatar": callback_avatar, "object": message}
 
     if len(instance.objects) % 6 == 0:  # stop at every 6 messages
         instance.send(