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create-openai-resource.md

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author cephalin
ms.service azure-app-service
ms.topic include
ms.date 03/03/2026
ms.author cephalin
ms.custom
build-2025

In this section, you use Azure CLI in GitHub Codespaces to create an Azure OpenAI resource.

  1. Sign in to GitHub Codespaces with your GitHub account.

  2. Select Use this template in the Blank tile to create a new blank codespace.

  3. In the Codespace terminal, install the Azure CLI.

    curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash

  4. Sign in to your Azure account.

    az login

    Follow the instructions in the terminal to authenticate.

  5. Set environment variables by providing names for your resource group and Azure OpenAI service and setting an appropriate Azure region as your location.

    export RESOURCE_GROUP="<group-name>"
export OPENAI_SERVICE_NAME="<azure-openai-name>"
export APPSERVICE_NAME="<app-name>"
export LOCATION="<azure-region>"

    [!IMPORTANT] The location is tied to the regional availability of the chosen model. Model and deployment type availability vary among Azure regions and billing tiers. This tutorial uses gpt-4o-mini, which is available in several regions under the Standard deployment type.

    Before selecting a location, consult the Model summary and region availability table to verify model support in your preferred region.

  6. Create a resource group and an Azure OpenAI resource with a custom domain, and then add a gpt-4o-mini model:

    # Resource group
az group create --name $RESOURCE_GROUP --location $LOCATION
# Azure OpenAI resource
az cognitiveservices account create \
  --name $OPENAI_SERVICE_NAME \
  --resource-group $RESOURCE_GROUP \
  --location $LOCATION \
  --custom-domain $OPENAI_SERVICE_NAME \
  --kind OpenAI \
  --sku s0
# gpt-4o-mini model
az cognitiveservices account deployment create \
  --name $OPENAI_SERVICE_NAME \
  --resource-group $RESOURCE_GROUP \
  --deployment-name gpt-4o-mini \
  --model-name gpt-4o-mini \
  --model-version 2024-07-18 \
  --model-format OpenAI \
  --sku-name Standard \
  --sku-capacity 1
# Cognitive Services OpenAI User role that lets the signed in Azure user read models from Azure OpenAI
az role assignment create \
  --assignee $(az ad signed-in-user show --query id -o tsv) \
  --role "Cognitive Services OpenAI User" \
  --scope /subscriptions/$(az account show --query id -o tsv)/resourceGroups/$RESOURCE_GROUP/providers/Microsoft.CognitiveServices/accounts/$OPENAI_SERVICE_NAME

Now that you have an Azure OpenAI resource, you can create a web application to interact with it.