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Fortinet FortiSIEM vs SentinelOne Singularity AI SIEM comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 28, 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

Fortinet FortiSIEM
Ranking in Security Information and Event Management (SIEM)
8th
Ranking in AI Observability
8th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
75
Ranking in other categories
No ranking in other categories
SentinelOne Singularity AI ...
Ranking in Security Information and Event Management (SIEM)
23rd
Ranking in AI Observability
22nd
Average Rating
8.8
Reviews Sentiment
5.7
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 2.7%, down from 3.1% compared to the previous year. The mindshare of SentinelOne Singularity AI SIEM is 1.6%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiSIEM2.7%
SentinelOne Singularity AI SIEM1.6%
Other95.7%
Security Information and Event Management (SIEM)
 

Featured Reviews

SY
Network Engineer at Ogma Consulting
Comprehensive monitoring boosts security, yet incident management features need expansion
Fortinet FortiSIEM should broaden its remediation part to include more features for incident management. Currently, to manage repetitive incidents or for remediation, I need to use a separate software called FortiSOAR. Additionally, the search functionality in FortiAI should be improved to provide more precise results, making it easier for me to understand what actions need to be taken.
Mohan Janarthanan - PeerSpot reviewer
Associate Vice President at Novac Technology Solutions
AI-driven monitoring has improved real-time threat detection but still needs better automation
I could see some workflows, but I am unable to do automated workflows. For example, some repetitive jobs or repetitive tasks I am doing, but I am trying to have less manual intervention on the front. I am raising some issues that should be resolvable. The SentinelOne team has told me that this can be resolved within a couple of months, but they are saying that it is in future for enhancement and it may take some time. So far, the numbers are great. Regarding disadvantages or areas for improvement, I could say that 35 percent of my manual effort can be detected since I implemented it very recently. I could be able to say my current data talks about only 35 percent, and it may improve further, as I am expecting. But I can only comment based on my alerts and events. The adoption rate will be less compared to other products, as this can be a time-taken process because all my data needs to be offloaded and the system needs to understand my existing alerts, logs, and other things. This will take some more time, probably another month. Another area for improvement is that the product is somewhat expensive. Pricing could be improved as well.

Quotes from Members

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

Pros

"The solution is easy to use and user-friendly."
"The network monitoring is one of the most valuable aspects of the solution."
"We're able to get real-timec as well as our customer networks that we're monitoring at all times."
"Some of our customers who use this solution have seen improvement in their connection with load balancing on both connections."
"The solution’s IP database is awesome."
"Some of our customers who use this solution have seen improvement in their connection with load balancing on both connections."
"These aspects make Fortinet FortiSIEM a valuable choice."
"The most valuable features for us are the built-in reports and alerts, along with the extreme flexibility in reporting and rule generation."
"Overall, I would assess the overall security posture after implementing SentinelOne Singularity AI SIEM as significantly better."
"After using SentinelOne Singularity AI SIEM, it has reduced our incident response time by forty to fifty percent compared to other tools."
"When they face attacks such as ransomware and are dissatisfied with their existing solutions, they switch to SentinelOne Singularity AI SIEM, which is quite good in detecting unknown threats, cleaning the system, and handling ransomware."
"AI-driven capabilities will give me real-time detection and will protect my autonomous AI interruption."
 

Cons

"The challenge I face with Fortinet FortiSIEM is the lack of support."
"The stability of the product is an area of concern where improvements are required."
"The backup and recovery process for this solution needs improvement."
"The solution's technical support didn't help our company a lot."
"Fortinet FortiSIEM could improve by having better integration and extensions. This would benefit by allowing us to give more rules."
"Creating parsers to try make unknown events or currently unsupported devices produce meaningful information is extremely cumbersome."
"The performance can be improved. Sometimes it takes a long time to fetch data."
"An improvement would be if FortiSIEM's licensing was based on the number of nodes rather than the EPS."
"It is quite good, but the only downside is that it is costly."
"Another area for improvement is that the product is somewhat expensive. Pricing could be improved as well."
"SentinelOne Singularity AI SIEM has some performance and reliability issues that need improvement."
"In AI SIEM, the areas that have room for improvement are the parsers for third-party integrated data or for third-party data sources that are not native integrations, which could be made a bit easier."
 

Pricing and Cost Advice

"The price is competitive."
"Fortinet's products are not expensive, it is less than the competition."
"The price of Fortinet FortiSIEM was reasonable compared to other solutions."
"Pricing is acceptable for more than 90% of our customers, as they normally get discounts."
"Please be cheaper and more simplified."
"The solution is available for both, perpetual and subscription licenses."
"Pricing is determined based on the customer's budget."
"They have a yearly subscription."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
10%
Comms Service Provider
9%
Financial Services Firm
9%
Manufacturing Company
7%
Healthcare Company
10%
Comms Service Provider
9%
Transportation Company
6%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise22
Large Enterprise24
No data available
 

Questions from the Community

What do you like most about Fortinet FortiSIEM?
Fortinet FortiSIEM needs to provide better API integrations to users.
What is your experience regarding pricing and costs for Fortinet FortiSIEM?
My experience with pricing, setup cost, and licensing for Fortinet FortiSIEM is wonderful, as it offers an excellent license compared to other vendors.
What needs improvement with Fortinet FortiSIEM?
Fortinet FortiSIEM is great overall. Performance could be enhanced, but I do not wish to elaborate on needed improvements.
What needs improvement with SentinelOne Singularity AI SIEM?
In AI SIEM, the areas that have room for improvement are the parsers for third-party integrated data or for third-party data sources that are not native integrations, which could be made a bit easi...
What is your primary use case for SentinelOne Singularity AI SIEM?
Our use case with SentinelOne Singularity AI SIEM is primarily AI observability for a large part. We are using it for SIEM purposes as well. Prior to the inclusion of Purple AI, it was exclusively ...
What advice do you have for others considering SentinelOne Singularity AI SIEM?
My impression of the AI-driven threat detection capabilities of SentinelOne Singularity AI SIEM is great. I am really looking forward to the upcoming feature with agentic incident investigation. If...
 

Also Known As

FortiSIEM, AccelOps
No data available
 

Overview

 

Sample Customers

FortiSIEM has hundreds of customers worldwide in markets including managed services, technology, financial services, healthcare, and government. Customers include Aruba Networks, Compushare, Port of San Diego, Cleveland Indians, Infoblox, Healthways, and Referentia.
Information Not Available
Find out what your peers are saying about Fortinet FortiSIEM vs. SentinelOne Singularity AI SIEM and other solutions. Updated: March 2026.
884,933 professionals have used our research since 2012.