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SentinelOne Singularity AI SIEM vs Stellar Cyber Open XDR comparison

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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)
6th
Average Rating
8.6
Reviews Sentiment
6.3
Number of Reviews
16
Ranking in other categories
AI Observability (6th)
Stellar Cyber Open XDR
Ranking in Security Information and Event Management (SIEM)
42nd
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) (55th), Network Traffic Analysis (NTA) (18th), Security Orchestration Automation and Response (SOAR) (25th), Network Detection and Response (NDR) (21st), Extended Detection and Response (XDR) (34th), Identity Threat Detection and Response (ITDR) (23rd)
 

Mindshare comparison

As of September 2026, in the Security Information and Event Management (SIEM) category, the mindshare of SentinelOne Singularity AI SIEM is 1.3%, up from 0.9% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.2%, down from 1.5% 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 XDR1.2%
Other97.5%
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.
JC
Global Director, Commercial Operations at Promasecure LLC
Automated security monitoring increases efficiency, but market visibility needs improvement
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 cater to everyone effectively. While I have not encountered significant drawbacks so far, market penetration is challenging due to the product's newness, despite its flexibility and customization features. I find their user interface to be quite good.

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."
"SentinelOne Singularity AI SIEM has improved our overall security posture and is reducing the workload on the SOC team."
"AI-driven capabilities will give me real-time detection and will protect my autonomous AI interruption."
"The AI features of SentinelOne Singularity AI SIEM are absolutely perfect."
"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."
"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."
"I assess the overall security posture of our organization after implementing SentinelOne Singularity AI SIEM as significantly improved."
"Overall, this affects my security posture positively because it improves it since it helps us in real-time monitoring, and it gives us automated investigation and also the auto-investigate tab, so it is pretty good."
"Stellar Cyber Open XDR offers these functionalities at a more affordable price, making it easier for me to position it with price-sensitive customers."
"It can integrate with almost any cybersecurity tool available in the market."
 

Cons

"There is room for improvement when it comes to the technical support quality and expertise of SentinelOne. Sometimes, the technical support team does not know how to resolve certain issues and takes time to respond, often requiring follow-up interactions within 24 hours."
"SentinelOne Singularity AI SIEM is a strong platform, but there are a few areas where it could be improved."
"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."
"Unfortunately, I was not happy with SentinelOne Singularity AI SIEM because it is not mature yet."
"I assess the efficiency of SentinelOne Singularity AI SIEM in improving our responses to sophisticated threats as not having improved a lot because, as I mentioned earlier, there are a few things that need improvement, including the false positive rate."
"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."
"Customer support could be better because it is frequently transferred to various agents."
"I would want the false positive ratio to be lower and would want to improve that aspect so the true will be more, and the false will be lesser."
"I would rate the stability at about five to six. The platform requires some fine-tuning, especially when integrating data sources and creating connectors."
"Support is an issue because they have a limited number of resources."
 

Pricing and Cost Advice

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

By visitors reading reviews
Outsourcing Company
24%
Comms Service Provider
7%
Media Company
6%
Construction Company
6%
Manufacturing Company
14%
Comms Service Provider
10%
Outsourcing Company
9%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise6
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: September 2026.
913,924 professionals have used our research since 2012.