HomeWinBuzzer NewsMicrosoft Details Prometheus, Its Bing Chat in-House Technology

Microsoft Details Prometheus, Its Bing Chat in-House Technology

Microsoft explains how the new Prometheus technology is an in-house base for Bing Chat that combines ChatGPT with Bing search.


A couple of weeks ago, unveiled its new Bing Chat search engine, powered by -like technology from . While it is the ChatGPT that provides the AI heart of the new Bing, Microsoft and OpenAI made some changes and call the underlying technology Prometheus. This week, Microsoft is now offering more details about Prometheus.

Jordi Ribas, head of engineering for , has written a LinkedIn blog post explaining how Prometheus works.

Development on the technology started last summer when OpenAI gave Microsoft a demo of its ChatGPT chatbot AI. Of course, Microsoft was a major investor in OpenAI, which explains the early access. Since then, Microsoft has doubled down on OpenAI and invested billions more dollars into the group.

Ribas explains that Microsoft already though it could find a way to integrate ChatGPT into Bing to create a modern AI-driven search experience. From this belief, the company began to create Prometheus:

“Prometheus leverages the power of Bing and GPT to generate a set of internal queries iteratively through a component called Bing Orchestrator, and aims to provide an accurate and rich answer for the user query within the given conversation context. All within a matter of milliseconds. We refer to this Prometheus-generated answer as the Chat answer.”


So, essentially Prometheus is Bing search combined with ChatGPT natural language processing. Ribas points out that the combination allows the chatbot to be more accurate:

“Thanks to the Bing grounding technique, Prometheus is also able to integrate citations into sentences in the Chat answer so that users can easily click to access those sources and verify the information. Sending traffic to these sources is important for a healthy web ecosystem and remains one of our top Bing goals.”

Since its launch in limited preview, has had issues including arguing with users. Microsoft issued a limit on how many users can access the bot. However, the company has since made improvements to the search engine and is starting to ease usage limits.

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Luke Jones
Luke Jones
Luke has been writing about all things tech for more than five years. He is following Microsoft closely to bring you the latest news about Windows, Office, Azure, Skype, HoloLens and all the rest of their products.