Despite the close ties between the companies and similarities in their GPT Builders, OpenAI and Microsoft reportedly did not work together.

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Microsoft opens its Copilot GPT Builder to all Pro subscribers, allowing them to build and share customized versions of the chatbot. The GPT Builder can be accessed through the Copilot web app, and it enables users to create apps without technical or programming knowledge. The tool also supports retrieval augmented generation (RAG) and offers web browsing and image generation capabilities. OpenAI reportedly has no involvement in Microsoft's GPT Builder, indicating Microsoft's efforts to reduce reliance on OpenAI.