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Faiss vs MySQL 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
12th
Average Rating
8.0
Reviews Sentiment
3.3
Number of Reviews
3
Ranking in other categories
Vector Databases (13th)
MySQL
Ranking in Open Source Databases
2nd
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
152
Ranking in other categories
Relational Databases Tools (4th)
 

Mindshare comparison

As of May 2026, in the Open Source Databases category, the mindshare of Faiss is 3.5%, down from 4.1% compared to the previous year. The mindshare of MySQL is 10.5%, down from 10.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Open Source Databases Mindshare Distribution
ProductMindshare (%)
MySQL10.5%
Faiss3.5%
Other86.0%
Open Source Databases
 

Featured Reviews

Kalindu Sekarage - PeerSpot reviewer
Senior Software Engineer
Integration improves accuracy and supports token-level embedding
The best features FAISS offers for my team include seamless integration with Colbert and the ability to use FAISS via the Ragatouille framework, which is tailor-made for using the Colbert model. Feature-wise, FAISS allows for more accurate result retrieval, and retrieval speed is also good when comparing the index size. Regarding features, I also emphasize that the usability of FAISS is very seamless, particularly its integration with Colbert and Ragatouille. FAISS has positively impacted my organization by helping us increase the accuracy of retrieval documents; when we store documents in token-level embedding, the accuracy will be high. Additionally, we do not need any external server to host FAISS, allowing us to integrate it with our backend framework, making it a very flexible framework.
Prabir Kumar Kundu - PeerSpot reviewer
SR AVP–Presales Cloud & Platform Management Services at Path Infotech ltd
Offers robust security and availability with impressive replication capabilities
Regarding their documentation and interface, there is room for improvement. Documentation is definitely required when running multiple databases on a cluster system. The load balancer, MySQL LB, which is used to connect to the application, lacks clear documentation. When there are multiple application servers connecting to the MySQL cluster and going through the MySQL load balancer, the documentation is not user-friendly. It's there, but only technical persons with deep knowledge of the MySQL database can implement it. Most of the community users or ISVs who use MySQL don't have many technical persons or DBA experts, so they face some challenges for the high availability of connecting high available databases from high available applications. That documentation should be simplified.

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."
"We plan to continue using this product; it's good, and I can recommend it to others."
"Apart from the features that are in the enterprise part, we find the database to be valuable. The connectors and the backup features are valuable as well. We use the basic database. We don't really use the extra features. Our clients like the security features in the database."
"MySQL gives us all of the critical features that we need in a database, but without the costs."
"MySQL is a very useful database which is used by a lot of companies, so it should be really good."
"Fully scalable and stable SQL-based RDBMS, with a straightforward and easy setup."
"My main reason for using MySQL for this small customer database company and for some kinds of scientific projects was that I had to do the installation myself. I didn't have a database administration team behind me. Therefore, I was looking for something very easy to handle. MySQL is easy to install, connect, and do all such things."
"This is a good traditional database, it supports JSON and it is whatever you need for a simple solution."
"It is very fast and stable and at the same time not resource hungry compared to some other RDBMS products."
 

Cons

"It could be more accessible for handling larger data sets."
"One of the drawbacks of Faiss is that it works only in-memory. If it could provide separate persistent storage without relying on in-memory, it would reduce the overhead."
"It would be beneficial if I could set a parameter and see different query mechanisms being run."
"Its scalability can be better. It is probably not as scalable as Oracle."
"We did encounter some scalability issues as it has limited clustering support, it requires scaling up rather than out to some degree."
"I haven't really looked into the security of it, but it should be good. It could be more secure."
"Security is a concern. MySQL could have better security features."
"It should have some code analytical functions. It can also have a monitoring tool."
"If you have money, it would be better to use Oracle."
"​MySQL is not easily scalable on cost effective consumer grade hardware.​"
"The full-text search feature must be improved."
 

Pricing and Cost Advice

"Faiss is an open-source solution."
"It is an open-source tool."
"There is no licensing fee."
"MySQL is a cheap solution."
"The solution is open source so is free."
"We are using the free community edition of MySQL."
"Microsoft licensing for SQL Server is probably ten times more expensive. I used to work for the government, and I remember when we were looking into upgrading to the enterprise version of SQL Server 2019, the licensing was going to cost 350,000. To get the equivalent in the cloud, it was going to be about four grand to get the same processing power and everything else. With MySQL, it was going to be about 300 for the same licensing. Cost-wise, for sure, there is a huge difference. Would you prefer to pay 300 a month or 3,000 to have the same amount of data resources? You might lose a few options that you need, but it isn't worth the price difference."
"MySQL is very cheap. It could be free. It also has a yearly licensing option."
"This product has a good price point."
"The solution does not come with a licensing fee."
report
Use our free recommendation engine to learn which Open Source Databases solutions are best for your needs.
893,221 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
14%
Computer Software Company
11%
Comms Service Provider
9%
Manufacturing Company
9%
Financial Services Firm
9%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business75
Midsize Enterprise33
Large Enterprise61
 

Questions from the Community

What do you like most about Faiss?
I used Faiss as a basic database.
What is your experience regarding pricing and costs for Faiss?
I did not purchase FAISS through the AWS Marketplace because FAISS is an open-source product. My experience with pricing, setup cost, and licensing is straightforward, as there is no cost for acqui...
What needs improvement with Faiss?
I currently do not think there is anything to be improved based on our experience, as Faiss performs as we expected for our workflow. I would like to see improvement in the fact that FAISS currentl...
Why are MySQL connections encrypted and what is the biggest benefit of this?
MySQL encrypts connections to protect your data and the biggest benefit from this is that nobody can corrupt it. If you move information over a network without encryption, you are endangering it, m...
Considering that there is a free version of MySQL, would you invest in one of the paid editions?
I may be considered a MySQL veteran since I have been using it since before Oracle bought it and created paid versions. So back in my day, it was all free, it was open-source and the best among sim...
What is one thing you would improve with MySQL?
One thing I would improve related to MySQL is not within the product itself, but with the guides to it. Before, when it was free, everyone was on their own, seeking tutorials and how-to videos onli...
 

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, Tumblr, Scholastic, MTV Networks, Wikipedia, Verizon Wireless, Sage Group, Glassfish Open Message Queue, and RightNow Technologies.
Find out what your peers are saying about Faiss vs. MySQL and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.