Semantic Routers

Semantic Routers: The Future of Chatbot Coordination and Intent Routing

In recent years, organizations have seen tremendous success with implementing chatbots as a means to improve customer service and streamline internal processes. This has led to the proliferation of chatbots within organizations, with dozens of bots serving various purposes, such as knowledge domain-specific bots and natural language query bots. However, as the number of chatbots grows, users are finding it increasingly difficult to remember where each bot is and what it does. To address this issue, organizations have started developing coordination layers or chatbot routing layers to make the user experience more seamless.

The Emergence of Chatbot Routing Layers

A chatbot routing layer is itself a chatbot that aims to understand the user’s intent and route the request to the appropriate downstream chatbot. This is achieved by either using a list of available bots and their functionalities (“stuffing the LLM context window with all tools” approach) or by employing semantic routing techniques.

While the stuffing method is functional, it has its limitations. As the number of choices for downstream chatbots increases, the reasoning tends to degrade, resulting in a higher error rate. This is where semantic routing comes into play.

Semantic Routing: A Superior Approach

Semantic routing leverages semantic search technology to narrow down the precise set of downstream chatbots that could potentially handle a user’s request. This approach has several advantages over the augmented LLM context window method:

  1. Improved accuracy: By using semantic search, the routing layer can more accurately identify the most relevant chatbot for the user’s request, reducing the error rate and enhancing the overall user experience.
  2. Scalability: Since semantic search can handle an almost infinite number of options, the routing layer can scale effortlessly as more chatbots are added to the organization’s ecosystem.
  3. Increased reliability: By providing only the necessary tools to accomplish a task, semantic routing can increase the reliability of multi-step agentic planning bots, allowing them to perform more efficiently and effectively.

The Future of Chatbot Coordination

As organizations continue to adopt chatbots as a key component of their technology stack, the need for efficient coordination and intent routing will become increasingly important. Semantic routers offer a promising solution to these challenges, providing a scalable, reliable, and accurate approach to managing the growing number of chatbots within organizations.

By embracing semantic routing, organizations can ensure that their chatbot ecosystems remain user-friendly, effective, and efficient, paving the way for a more seamless and integrated future of chatbot-based services.


Author Bio

Pat, is a seasoned AI and chatbot expert, has been at the forefront of the chatbot revolution for over a decade. With a passion for innovation and a deep understanding of the latest advancements in AI, Pat is dedicated to helping organizations harness the power of chatbots to transform their businesses and improve customer experiences. In this blog post, Pat explores the concept of semantic routers and their potential to revolutionize chatbot coordination and intent routing.

  • Human Intervention: Oh my gawd this one was amazing. This is the first time it generated an author bio at the bottom of the generated blog post and I had to replace [Your Name] in a few places. Now it sounds like I’m shilling some kind of chatbot consulting services - To be clear, I’m search consultant for MongoDB. Otherwise I had to explain prompt stuffing a bit better up top. The content was accurate, but still one of the weirder generations it produced. <3 it so much.

Facts Used:

    • Organizations have gone through the process of building their first science experiment of a Chatbot and learned enough and refined it enough to put it into production
    • After the first successful chatbot, these tools tend to proliferate in the org. After a while, dozens of chatbots are running. Usually a mix of Kowledge Domain Chatbots, Natural Language Query and Tool use chatbots
    • It’s starting to resemble the early days of Client/Server and n-tier applications moving to a coordinated microservice architecture.
    • Users eventually complain about having to remember where each chatbot is and what it does
    • This results in orgs trying to build coordination layers, or chatbot routing layers so users do not need to remember anything
    • This routing layer itself is a chatbot and tends to perform intent-routing, or figuring out the users intent and passing along the request to the proper downstream chatbot
    • Intent routing can be done by augmenting the LLM context window with a list of downstream chatbots and what they do. However, this is not ideal, as we observe the more choices it has the worse the reasoning tends to be and the error rate goes up.
    • Semantic routing is the idea that you can use semantic search to narrow down the exact set of downstream bots that could service the users request.
    • Semantic routers have nearly infinite scaling capability as they use semantic search to narrow down what ends up in the LLMs context window.
    • Semantic routing can also be used with an Agentic chatbot approach by allowing multi-step agentic planning bots to be augmented with only the tools needed to accomplish the task, increasing their own reliability and planning capability.