diff --git a/cookbook/Untitled155.ipynb b/cookbook/Untitled155.ipynb
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+{
+  "nbformat": 4,
+  "nbformat_minor": 0,
+  "metadata": {
+    "colab": {
+      "provenance": []
+    },
+    "kernelspec": {
+      "name": "python3",
+      "display_name": "Python 3"
+    },
+    "language_info": {
+      "name": "python"
+    }
+  },
+  "cells": [
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "adotBkqZSh5g"
+      },
+      "outputs": [],
+      "source": [
+        "!pip install litellm"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "from litellm import completion\n",
+        "\n",
+        "## set ENV variables\n",
+        "os.environ[\"OPENAI_API_KEY\"] = \"openai key\"\n",
+        "os.environ[\"COHERE_API_KEY\"] = \"cohere key\"\n",
+        "os.environ[\"REPLICATE_API_KEY\"] = \"replicate key\"\n",
+        "messages = [{ \"content\": \"Hello, how are you?\",\"role\": \"user\"}]\n",
+        "\n",
+        "# openai call\n",
+        "response = completion(model=\"gpt-3.5-turbo\", messages=messages)\n",
+        "\n",
+        "# cohere call\n",
+        "response = completion(\"command-nightly\", messages)\n",
+        "\n",
+        "# replicate call\n",
+        "response = completion(\"replicate/llama-2-70b-chat:2c1608e18606fad2812020dc541930f2d0495ce32eee50074220b87300bc16e1\", messages)"
+      ],
+      "metadata": {
+        "id": "LeOqznSgSj-z"
+      },
+      "execution_count": null,
+      "outputs": []
+    }
+  ]
+}
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