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SentinelOne Singularity AI SIEM vs Stellar Cyber Open XDR comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

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

SentinelOne Singularity AI ...
Ranking in Security Information and Event Management (SIEM)
8th
Average Rating
8.6
Reviews Sentiment
6.4
Number of Reviews
15
Ranking in other categories
AI Observability (6th)
Stellar Cyber Open XDR
Ranking in Security Information and Event Management (SIEM)
43rd
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
User Entity Behavior Analytics (UEBA) (29th), Endpoint Detection and Response (EDR) (58th), Network Traffic Analysis (NTA) (17th), Security Orchestration Automation and Response (SOAR) (24th), Network Detection and Response (NDR) (21st), Extended Detection and Response (XDR) (40th), Identity Threat Detection and Response (ITDR) (22nd)
 

Mindshare comparison

As of August 2026, in the Security Information and Event Management (SIEM) category, the mindshare of SentinelOne Singularity AI SIEM is 1.3%, up from 0.6% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.3%, down from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
SentinelOne Singularity AI SIEM1.3%
Stellar Cyber Open XDR1.3%
Other97.4%
Security Information and Event Management (SIEM)
 

Featured Reviews

Dev Reshwal - PeerSpot reviewer
Technical Support Executive at Softcell Technologies Limited
Automation has reduced workload and real-time monitoring provides faster incident response
SentinelOne Singularity AI SIEM is the best, but sometimes the dashboards are a little simple compared to other tools. The custom dashboard is not available in their features. Therefore, I would suggest adding the custom dashboard for any of our requirements. The AI-driven analytics from SentinelOne Singularity AI SIEM has not affected our ability to reduce false positives. SentinelOne Singularity AI SIEM has affected my SOC's efficiency in investigating alerts and responding to incidents. If we receive any alerts, we can observe what activity is being done. We can see if it is malicious or something suspicious, or a true positive. We can analyze the path, the hash, and whether the signature is verified or not. We can see if it is an alert triggered by any engine. We can see the source of this. We will do that type of analysis and raise it to the client side. Also, if I identify anything suspicious or malicious in the alert, I will forcefully kill and quarantine it immediately.
Hrishiraj Bhattacharjee - PeerSpot reviewer
Founder & CEO at Team Karimganj
Correlates incidents, allows for quicker identification and helps prioritize investigations
The only challenge is, and that’s where we come into play, it’s a pretty high-tech platform. So, it’s difficult for small and medium-sized organizations to manage it on their own. It’s a very complex system. It requires a lot of expertise. All my guys who work on it have gone through certification from Stellar itself. There are three different certifications that you need to complete. Only then are you certified by Stellar to work on it. It’s a very complex platform. Not everyone can use it. A simple IT engineer or system admin won’t be able to handle it because it’s quite complex. You need to have an understanding of the industry, the subject, and the tool. So, just purchasing this tool or license and then using it on your own would be very difficult to configure and manage on a day-to-day basis. The pricing model is not suitable for small and medium companies, particularly small companies. The minimum pricing model they have is suitable for companies with more than one thousand users. So, if someone has 50 to 100 users, like typical small companies, it’s difficult for them because the cost involved is high. Stellar would charge you for those thousand users, but you do not need all those users. So what are they going to do? I guess Stellar does not want to target small companies directly and maybe relies on resellers and MSPs like us to sell it. So, that is something I would recommend changing. Otherwise, it’s a great tool, but because of the pricing model, small companies are unable to leverage the advantage of this beautiful tool. So, the pricing model should be suitable for small and medium businesses. The product currently has vulnerability monitoring and everything. But if they could also do something about vulnerability management and maybe patch management, that would be nice.

Quotes from Members

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

Pros

"After using SentinelOne Singularity AI SIEM, it has reduced our incident response time by forty to fifty percent compared to other tools."
"With the help of this tool, the response time to sophisticated threats has improved significantly, and it recently cuts the MTTR time using Purple AI by 40%."
"SentinelOne Singularity AI SIEM has improved our overall security posture and is reducing the workload on the SOC team."
"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."
"The beauty of the integration is that it integrates very smoothly with third-party tools, so we do not need to think about the parsers, coding, depending on the codes, or the software developers."
"I will strongly recommend this, because after SentinelOne Singularity AI SIEM we have reduced our engineering time to a certain degree as it has helped us to do investigations fast, we get actual alerts that matter and can prioritize them properly, and the monitoring capability is now completely in one single platform so we do not have to go here and there, which has given us good ROI in total."
"SentinelOne Singularity AI SIEM's AI-powered analytics does affect our SOC's ability to reduce false positives; that is one of the biggest advantages because the manpower that I have is limited."
"SentinelOne Singularity AI SIEM has impacted my organization positively because I am observing some improvement, including real-time monitoring and real-time threat detection that help secure both our and the client's organization from anything suspicious or any malicious types of alerts."
"It can integrate with almost any cybersecurity tool available in the market."
"Stellar Cyber Open XDR offers these functionalities at a more affordable price, making it easier for me to position it with price-sensitive customers."
 

Cons

"What I dislike is that the dashboard is very old, so they do not have much capability to be honest."
"At the moment, I feel the pricing is a little bit on the higher side, but the tool is positioned in a place where risk is very high, and we do not want to take chances, so we are prepared to pay the premium."
"It is quite good, but the only downside is that it is costly."
"Unfortunately, I was not happy with SentinelOne Singularity AI SIEM because it is not mature yet."
"While it provides many built-in decorations and dashboards, creating highly customized decoration rules and reports can sometimes require additional efforts."
"SentinelOne Singularity AI SIEM is the best, but sometimes the dashboards are a little simple compared to other tools."
"SentinelOne Singularity AI SIEM has some performance and reliability issues that need improvement."
"SentinelOne Singularity AI SIEM can improve in the area of XDR, especially in the integration between SentinelOne and other solutions and components in the network, as it was not working well with the Fortinet firewall."
"Support is an issue because they have a limited number of resources."
"I would rate the stability at about five to six. The platform requires some fine-tuning, especially when integrating data sources and creating connectors."
 

Pricing and Cost Advice

Information not available
"It’s a single license platform."
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Top Industries

By visitors reading reviews
Outsourcing Company
22%
Construction Company
7%
Manufacturing Company
6%
Media Company
6%
Manufacturing Company
13%
Comms Service Provider
9%
Computer Software Company
8%
Outsourcing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise5
Large Enterprise4
No data available
 

Questions from the Community

What needs improvement with SentinelOne Singularity AI SIEM?
They could expand more integrations for other third-party products that are not currently available. Those are areas they can improve or have yet to improve. For example, we have firewall integrati...
What is your primary use case for SentinelOne Singularity AI SIEM?
Clients can use SentinelOne Singularity AI SIEM for endpoint security solutions, and apart from that, we currently have something called prompt security where it is helping us to enhance control ov...
What advice do you have for others considering SentinelOne Singularity AI SIEM?
The automated workflow feature impacts my security tasks and manual efforts significantly. Downtime is not necessarily required in scenarios where a particular system has to be isolated. Whether it...
What is your experience regarding pricing and costs for Stellar Cyber Open XDR?
Pricing is a major benefit of Stellar Cyber Open XDR. I rate it between three and four on the cost scale. It offers functionalities at a significantly lower cost than rival products, enabling me to...
What needs improvement with Stellar Cyber Open XDR?
I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvement as of now. Their support is good, and the team is small, enabling them to ca...
What is your primary use case for Stellar Cyber Open XDR?
I use Stellar Cyber Open XDR ( /products/stellar-cyber-open-xdr-reviews ) as a 24/7 security monitoring tool, especially for customers with large and medium networks. It eliminates the need for a d...
 

Overview

 

Sample Customers

Information Not Available
Sumitomo Chemical USA, PlastiPak Packaging, University of Denver, Large California State Agency, Large Midwestern American City
Find out what your peers are saying about SentinelOne Singularity AI SIEM vs. Stellar Cyber Open XDR and other solutions. Updated: August 2026.
908,858 professionals have used our research since 2012.