Sign in to the Azure portal: Go to https://portal.azure.com and sign in with your Azure account credentials.
Navigate to the Cognitive Services resource: Locate and select the resource group that contains your existing Cognitive Services instances.
Select the existing Cognitive Services instance: Choose the specific Cognitive Services instance that you want to upgrade.
Go to the Pricing tier settings: In the left-hand navigation pane, under Settings, select "Pricing tier" or "Scale up".
Select the desired tier: In the pricing tier settings, you'll see the current tier of your Cognitive Services instance. Choose the desired higher tier, such as S1, S2, or higher, based on your requirements and the available options for your subscription.
Apply the tier upgrade: Click on the "Apply" or "Save" button to initiate the tier upgrade process for your Cognitive Services instance.
Wait for the upgrade to complete: The tier upgrade process may take a few moments to complete. During this time, your Cognitive Services instance may experience a brief interruption in service. Once the upgrade is finished, your instance will be running on the new tier.
It's important to note that the availability of subscription tiers and the specific upgrade options may vary based on your Azure subscription type and region. The above steps outline the general process, but it's recommended to review the Azure documentation or contact Azure support for detailed instructions specific to your situation.
Here is the link to the Azure documentation for upgrading the Cognitive Services pricing tier: Upgrade the pricing tier for Azure Cognitive Services
Please refer to the documentation for the most up-to-date and accurate information on upgrading the pricing tier for Azure Cognitive Services.