On May 20, 2021, Google held its developer conference, I/O, and announced a new algorithm for its search engine: MUM, or Multitask Unified Model.

BERT has been the fundamental model for their search engine for the previous two years. BERT was a spectacular release that was cutting-edge until MUM arrived.

What exactly is Google’s MUM update?

The Google Multitask Unified Model (MUM) update attempts to meet current search expectations by improving online search capacity using an AI-powered algorithm. 

Users are confronted with multiple searches and geographical and linguistic obstacles while searching the internet, contrary to expectations, owing to a lack of intuition on the part of the search engine.

Google’s MUM will make it easier for people to compare things and get more information. It can understand and give answers based not only on written information but also on photos, videos, and podcasts in ways that were never thought of before.

It knows 75 languages, which means it can pool and serve results to provide users with the most holistic and complete search experience, answering even the most complicated queries.

Google MUM will redefine search relevancy, altering how people access and utilize information on the internet. The MUM upgrade means that search results will show content that is useful and related to what people are looking for. 

The benefits of MUM

As a result of its capacity to think beyond the query or statement, MUM will be able to tap into numerous aspects of the SERP and SEO. Users, companies, and content providers are being pushed to say goodbye to the “precise response days” and instead tap into the rich, complicated, and sometimes more generic user intent and journey. 

Consider planning to visit a nation and the questions you’d have to ask to learn everything you need to know. To begin with, you may be thinking about the best way to get there. 

Then you may browse for a place to stay, what’s nearby, if any visas or vaccinations are necessary, and even some information about the weather and activities available. The list grows longer, as does the time required to look for and sort through results.

In essence, people now want more, and we want it fast, and Google MUM is the first step in meeting those needs. According to Google, MUM is not only 1000 times more powerful than BERT and has greater efficiency scores, but it also excels in three important categories:• MUM is multimodal and supports a wide range of media formats• MUM is capable of handling more complicated search queries• MUM overcomes language boundaries


MUM is a multimodal system. That is, it can comprehend data in a variety of formats. Text, photos, webpages, and, ultimately, videos and audio are included. It may imply that searches like “would this green sneaker be okay for work?” together with an image of a green sneaker may provide relevant results. MUM would recognize that the green sneaker was a “nice alternative,” and then suggest blogs on “excellent sneakers for your work.”

Complicated search queries

“Will I discover a nice breakfast restaurant in London as easily as I did in Tbilisi?” Such queries will provide results all at once. Previously, we would have to search for information for each city and compare it ourselves. 

Not only will a single query serve to recommend fantastic breakfast spots for each city, but it will also provide additional valuable information on each city that it knows other people may have searched for.


Language, much like it may be a huge barrier in in-person conversations, can be a significant obstacle in an online search. This might make it difficult to find the proper or relevant information. 

The same holds for Google. Language, on the other hand, does not have to be a barrier with MUM, as it knows 75 languages. That is, it can gather information from sources in several languages to aid a better understanding of subjects and ideas.


Because MUM aims to influence search behavior, it will have an impact on your internet visibility. Committing to an SEO strategy aimed at engaging users with high-quality content is a critical first step in ensuring MUM has a positive impact on your presence.It will be easier for people to find what they want if your content is relevant to them. The search results will get better as time goes on.