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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 (5th)
MySQL
Ranking in Open Source Databases
1st
Average Rating
8.2
Reviews Sentiment
7.4
Number of Reviews
150
Ranking in other categories
Relational Databases Tools (4th)
 

Mindshare comparison

As of October 2025, in the Open Source Databases category, the mindshare of Faiss is 3.6%, down from 4.6% compared to the previous year. The mindshare of MySQL is 8.9%, down from 14.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Open Source Databases Market Share Distribution
ProductMarket Share (%)
MySQL8.9%
Faiss3.6%
Other87.5%
Open Source Databases
 

Featured Reviews

Kalindu Sekarage - PeerSpot reviewer
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
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."
"I rate the solution's stability a ten out of ten since it has been running flawlessly."
"The tool is open-source and there is no cost involved in its use."
"The solution is easy to use."
"The solution is free to use, which is its most valuable aspect."
"MySQL is easy to integrate. It works with just about every language."
"It is easy to use. It is simple to implement, which makes it suitable for our projects because we have deadlines. MySQL is also open-source, which is another plus point."
"The most valuable feature is the on-premises data encryption facilities."
"The initial setup was easy. I work in an agile way, which means coding and deploying quickly."
 

Cons

"It would be beneficial if I could set a parameter and see different query mechanisms being run."
"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 could be more accessible for handling larger data sets."
"The solution could improve the monitoring. At the present time, you need to use third-party monitoring solutions."
"We face certain integration issues, especially when we integrate the database with security solutions like IBM QRadar, which affects database performance."
"MySQL tutorials and guides could be improved. Often they are too complex for someone with no database experience to understand."
"Since we upgraded from 8.0.12 to 8.0.22, it has had some slowness-related issues. Some of the queries that were fast previously are quite slow now. I did some research, and I found many people complaining about it."
"The availability of tools could be improved in the MySQL open-source platform. They can provide more analytical tools. I haven't had any particularly difficult issues to troubleshoot on MySQL, but in the past, on Microsoft SQL Server, I had to troubleshoot some difficult issues, and better tools were in place to see what was going on in real-time on the server. So, that's the bit that is lacking on the MySQL open-source platform."
"As an open-source product, there isn't really any technical support available if you get into trouble or have issues."
"The workbench could be improved. In particular, error messages can be improved, which are horrific and completely unhelpful. I'd like to see improved parsing of errors. When you write SQL and it crashes, it usually is something completely irrelevant and not helpful. I've started to use GPT 3.5 for finding out how to do things. I got to do something a bit different, and that I found to be very useful. If there was some way to tie it into one of the new AI tools, that would probably be a good idea."
"I would like to have features that allow us to jump between the cloud and our on-premises system."
 

Pricing and Cost Advice

"It is an open-source tool."
"Faiss is an open-source solution."
"There is not a license required for this solution."
"It is open source. We prefer it for POCs because it saves the license cost."
"My company uses MySQL's corporate licenses."
"I rate the solution's pricing as four out of ten, where one is cheap, and ten is expensive. For our basic needs, it's quite affordable. However, the cost increases when we need to scale up or require high availability. Our developer team of about 600 people uses MySQL without much issue. The pricing becomes more of a concern on the business side, as we have more end users and need constant database availability and scaling. In those cases, the solution gets a bit more expensive, even though it provides good value for the business."
"I am using the Community Edition, which is available free of charge."
"We're using the open-source version right now, which is free. I do see some value in some of the more enterprise functions. We're using the open-source version right now, and I was interested in the MySQL Enterprise version really for the tools that they provide, but we decided not to make the purchase."
"I use a free version at present."
"MySQL is a cheap solution."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Financial Services Firm
13%
Manufacturing Company
9%
Educational Organization
8%
Computer Software Company
14%
Financial Services Firm
10%
Manufacturing Company
8%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business73
Midsize Enterprise31
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

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Find out what your peers are saying about Faiss vs. MySQL and other solutions. Updated: September 2025.
868,759 professionals have used our research since 2012.