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Faiss vs MongoDB comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Faiss
Ranking in Open Source Databases
13th
Average Rating
8.0
Number of Reviews
2
Ranking in other categories
Vector Databases (3rd)
MongoDB
Ranking in Open Source Databases
5th
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
78
Ranking in other categories
NoSQL Databases (1st), Managed NoSQL Databases (9th)
 

Featured Reviews

Vasu Bansal - PeerSpot reviewer
Provides quick query search and has a big database
I did not face any issues integrating Faiss with other tools. I would recommend the solution to other users. Faiss has facilitated my AI-driven project very well. I recommend that other users use it for their AI projects because it provides quick query search and has a big database. Overall, I rate the solution nine and a half out of ten.
Hamidul Islam - PeerSpot reviewer
Lightweight with good flexibility and very fast performance for searching data
I used the solution in the production level to search data and create education-based tutorials for a project. We had 30 managers, senior architects, tech leads, and software engineers working on the project.  Currently, I use the solution for my personal work.  The solution has good flexibility…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I used Faiss as a basic database."
"The product has better performance and stability compared to one of its competitors."
"The aggregation framework is very powerful when elaborating on data."
"The clustering is very good. It allows us to have high availability."
"MongoDB is relatively fast compared to relational databases."
"The reports are useful for controlling the load of our whole architecture."
"MongoDB has a simple data-loading interface."
"MongoDB is simpler to learn and implement than traditional SQL solutions like MySQL."
"It's easy to add and remove things in MongoDB. You can alter the tables. MongoDB is faster at reading, slower at writings."
"MongoDB has many good replication features and good performance."
 

Cons

"It would be beneficial if I could set a parameter and see different query mechanisms being run."
"It could be more accessible for handling larger data sets."
"A normal Oracle or database tester will take some time to gear up to MongoDB because the way of writing queries is different in MongoDB. There should be some kind of midway where a person who is coming from an Oracle background can write a query and get a response by using something like a select * statement or other such things. There should be some way for MongoDB to interpret these commands rather than making a person learn MongoDB commands and writing them. I struggled while writing these MongoDB commands. I had not seen such queries before. It was pretty difficult to get them. This is one of the areas where it would help from the improvement standpoint."
"The performance could be faster."
"We'd like information about client onboarding experience and success stories. It would help to have something to show to internal stakeholders."
"From my point of view, they need a totally free IDE to work at high levels."
"Enhancing the documentation to make it more beginner-friendly is crucial."
"There was a need for integrating relational database capabilities, however, MongoDB has introduced a relational converter that allows conversion between SQL and NoSQL."
"I have found the solution difficult to operate as an administrator."
"At the start, connecting to the database via Compass or through a direct ID was a challenge."
 

Pricing and Cost Advice

"Faiss is an open-source solution."
"It is an open-source tool."
"MongoDB has a free version. You can also buy the enterprise edition, which is cheaper than Oracle."
"I chose MongoDB because it is cost-effective compared to Oracle, which can be expensive. In addition, MongoDB has good performance and has not caused any issues while working with it. It has been a good choice for me."
"We are using the Community Edition of MongoDB."
"I'm using the free version of MongoDB."
"MongoDB's pricing is reasonable."
"There is an annual subscription for the use of this solution."
"The solution is open source so is free."
"We use the open-source version, which is available to use free of charge."
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Top Industries

By visitors reading reviews
Computer Software Company
19%
Financial Services Firm
14%
Manufacturing Company
9%
Educational Organization
8%
Financial Services Firm
18%
Computer Software Company
14%
University
6%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about Faiss?
I used Faiss as a basic database.
What needs improvement with Faiss?
I didn't know what algorithm was being learned to fetch my query. It would be beneficial if I could set a parameter and see different query mechanisms being run. I can then compare the results to s...
What do you like most about MongoDB?
MongoDB's approach to handling data in documents rather than traditional tables has been particularly beneficial.
What is your experience regarding pricing and costs for MongoDB?
MongoDB is free of charge. that said, there is also a paid version. We use both free and paid versions.
What needs improvement with MongoDB?
If something is wrong on the cluster, then you need to contact the support team. The stability could be better.
 

Comparisons

 

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Sample Customers

1. Facebook 2. Airbnb 3. Pinterest 4. Twitter 5. Microsoft 6. Uber 7. LinkedIn 8. Netflix 9. Spotify 10. Adobe 11. eBay 12. Dropbox 13. Yelp 14. Salesforce 15. IBM 16. Intel 17. Nvidia 18. Qualcomm 19. Samsung 20. Sony 21. Tencent 22. Alibaba 23. Baidu 24. JD.com 25. Rakuten 26. Zillow 27. Booking.com 28. Expedia 29. TripAdvisor 30. Rakuten 31. Rakuten Viber 32. Rakuten Ichiba
Facebook, MetLife, City of Chicago, Expedia, eBay, Google
Find out what your peers are saying about Faiss vs. MongoDB and other solutions. Updated: January 2025.
831,158 professionals have used our research since 2012.