Azure OpenAI Service offers industry-leading language models that you can fine-tune to your specific needs for a variety of use cases. Azure announced GPT-4 is available in preview in Azure OpenAI Service. With this milestone, they bring the world’s most advanced AI models—including GPT-3.5, ChatGPT, and DALL•E 2—to Azure customers, backed by Azure AI-optimized infrastructure, enterprise-readiness, compliance, data security, and privacy controls, along with many integrations with other Azure services.

Customers can begin applying for access to GPT-4 today.

Source: https://azure.microsoft.com/en-us/blog/introducing-gpt4-in-azure-openai-service/