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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)
13th
Average Rating
8.8
Reviews Sentiment
6.5
Number of Reviews
8
Ranking in other categories
AI Observability (10th)
Stellar Cyber Open XDR
Ranking in Security Information and Event Management (SIEM)
44th
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
User Entity Behavior Analytics (UEBA) (27th), Endpoint Detection and Response (EDR) (57th), Network Traffic Analysis (NTA) (16th), Security Orchestration Automation and Response (SOAR) (24th), Network Detection and Response (NDR) (20th), Extended Detection and Response (XDR) (38th), Identity Threat Detection and Response (ITDR) (18th)
 

Mindshare comparison

As of June 2026, in the Security Information and Event Management (SIEM) category, the mindshare of SentinelOne Singularity AI SIEM is 1.4%, up from 0.5% compared to the previous year. The mindshare of Stellar Cyber Open XDR is 1.3%, up from 1.2% 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 SIEM1.4%
Stellar Cyber Open XDR1.3%
Other97.3%
Security Information and Event Management (SIEM)
 

Featured Reviews

MM
Information Security Principal at a venture capital & private equity firm with 1,001-5,000 employees
Consolidated security operations have improved detection speed and reduced SOC costs
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 can be improved in terms of support capabilities. Some logs from the server side need to be ingested. Secureworks was integrating with domain controllers and other systems, but SentinelOne still has some gaps. Some vendors cannot be integrated directly. For example, we are using Cisco Umbrella for DNS security, and we have to integrate it through an Amazon S3 bucket where we dump the logs and SentinelOne reads them from that location. For some Microsoft integrations, we must enable certain storage components and pay Microsoft directly to retrieve logs. There is no direct integration, so we must access the logs through that workaround. Previously with Secureworks, we had direct integration with Microsoft. Direct integration with Microsoft is not available now. SentinelOne needs to work on many product integrations to enable direct connectivity.
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."
"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."
"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."
"Overall, I would assess the overall security posture after implementing SentinelOne Singularity AI SIEM as significantly better."
"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."
"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."
"I assess the overall security posture of our organization after implementing SentinelOne Singularity AI SIEM as significantly improved."
"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

"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."
"It is quite good, but the only downside is that it is costly."
"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."
"What I dislike is that the dashboard is very old, so they do not have much capability to be honest."
"Another area for improvement is that the product is somewhat expensive. Pricing could be improved as well."
"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."
"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 has some performance and reliability issues that need improvement."
"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
11%
Construction Company
8%
Manufacturing Company
8%
Comms Service Provider
7%
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 Business5
Midsize Enterprise3
Large Enterprise3
No data available
 

Questions from the Community

What needs improvement with SentinelOne Singularity AI SIEM?
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. Other than false positives, the true will be increase...
What is your primary use case for SentinelOne Singularity AI SIEM?
We discuss with customers whether they want to go on a cloud or on-premises for the usual use cases of SentinelOne Singularity AI SIEM that I work with mostly. If a customer has a SentinelOne EDR, ...
What advice do you have for others considering SentinelOne Singularity AI SIEM?
Correlation, alerting, reporting, and helping with the AI-based alerts generated by the AI are the usual use cases. The parsing is already built into SentinelOne Singularity AI SIEM. There is no ch...
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: June 2026.
900,838 professionals have used our research since 2012.