diff --git a/llm-apps-course/notebooks/01. Using_APIs.ipynb b/llm-apps-course/notebooks/01. Using_APIs.ipynb
index f564d452..1da8aea7 100644
--- a/llm-apps-course/notebooks/01. Using_APIs.ipynb	
+++ b/llm-apps-course/notebooks/01. Using_APIs.ipynb	
@@ -103,7 +103,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "encoding = tiktoken.encoding_for_model(\"text-davinci-003\")\n",
+    "encoding = tiktoken.encoding_for_model(\"gpt-3.5-turbo-instruct\")\n",
     "enc = encoding.encode(\"Weights & Biases is awesome!\")\n",
     "print(enc)\n",
     "print(encoding.decode(enc))"
@@ -157,7 +157,7 @@
     "def generate_with_temperature(temp):\n",
     "  \"Generate text with a given temperature, higher temperature means more randomness\"\n",
     "  response = openai.Completion.create(\n",
-    "    model=\"text-davinci-003\",\n",
+    "    model=\"gpt-3.5-turbo-instruct\",\n",
     "    prompt=\"Say something about Weights & Biases\",\n",
     "    max_tokens=50,\n",
     "    temperature=temp,\n",
@@ -191,7 +191,7 @@
     "def generate_with_topp(topp):\n",
     "  \"Generate text with a given top-p, higher top-p means more randomness\"\n",
     "  response = openai.Completion.create(\n",
-    "    model=\"text-davinci-003\",\n",
+    "    model=\"gpt-3.5-turbo-instruct\",\n",
     "    prompt=\"Say something about Weights & Biases\",\n",
     "    max_tokens=50,\n",
     "    top_p=topp,\n",