Try our new research platform with insights from 80,000+ expert users

Faiss vs MongoDB comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 23, 2025

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
Reviews Sentiment
8.8
Number of Reviews
2
Ranking in other categories
Vector Databases (3rd)
MongoDB
Ranking in Open Source Databases
5th
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
78
Ranking in other categories
NoSQL Databases (1st), Managed NoSQL Databases (9th)
 

Mindshare comparison

As of February 2025, in the Open Source Databases category, the mindshare of Faiss is 5.5%, up from 0.7% compared to the previous year. The mindshare of MongoDB is 4.3%, up from 3.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Open Source Databases
 

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

"The product has better performance and stability compared to one of its competitors."
"I used Faiss as a basic database."
"It is easy to use."
"I like that MongoDB has a free version. You can also buy the enterprise edition, which is cheaper than Oracle."
"The most valuable feature is the geometric information done with GeoJSON."
"The installation is very stable."
"The most valuable feature of MongoDB is the predefined functions available when using Node.js. These functions simplify the query process, making it user-friendly and straightforward."
"Scalability seems good. I've never been even close to finding the limits. I've run a couple of notes of redundancy but I've never had any problems with scalability."
"MongoDB stores the JSON data, and it's easy for me to understand because I'm a JavaScript Developer."
"The Dynamic Application is a valuable feature."
 

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."
"Data encryption is possible using third-party tools but they should have their own encryption capability built-in to this solution."
"MongoDB would be improved with more integration, particularly for cloud environments like Google BigQuery."
"More stable indexes would be helpful in a future release. That's been an issue for some time. I don't know if it's been fixed now but we transitioned to it because we needed a search index to be able to search for things and if that goes or starts disappearing, we have to move away from that solution. I don't know if they fixed it, last time I had this issue was three years ago so they might have solved it."
"There is a need for improvement in MongoDB's customer support."
"There are some problems with bugs appearing in sharding when the data is too high."
"The solution should have better integration."
"MongoDB should support TypeScript."
"Lacks sufficient scalability and elasticity."
 

Pricing and Cost Advice

"Faiss is an open-source solution."
"It is an open-source tool."
"The solution is open source so is free."
"The solution is open source, so it is free."
"MongoDB is an open-source solution."
"I believe that MongoDB is free."
"There is an annual subscription for the use of this solution."
"The pricing is normal. Price-wise, the product is not too much expensive."
"If you want support with the solution you will need to purchase a license and not use the open-source version. The license is a little expensive."
"I only used the open-source version."
report
Use our free recommendation engine to learn which Open Source Databases solutions are best for your needs.
838,640 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
13%
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

 

Overview

 

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.
838,640 professionals have used our research since 2012.