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SentinelOne Singularity AI SIEM vs Splunk Enterprise Security 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:
 

ROI

Sentiment score
5.2
SentinelOne SIEM enhances SOC efficiency, reduces investigation times over 50%, and offers value despite higher pricing.
Sentiment score
6.1
Splunk Enterprise Security enhances ROI with automation and flexibility, benefiting incident response and early threat detection despite high costs.
SentinelOne Singularity AI SIEM has reduced our response time to true positive alerts by approximately forty percent through automation.
IT Security Analyst at a tech consulting company with 11-50 employees
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.
Group Chief Information Officer at NeST Information Technologies Pvt Ltd
The effect of SentinelOne Singularity AI SIEM on our customers' SOC efficiency in investigating alerts and responding to incidents is significant.
Vice President Cyber Security Practice Head at orbit techsol w pvt.ltd
The documentation for Splunk Enterprise Security is outstanding. It is well-organized and easy to access.
DevOps&Cloud Engineer Mentee at CertDirectory.io
We couldn't calculate what would have been the cost if they had actually gotten compromised; however, they were in the process, so every investment was returned immediately.
Business Development Manager at Axians Germany
On average, my SecOps team takes probably at least a quarter of the time, if not more, to remediate security incidents with Splunk Enterprise Security compared to our previous solution.
IT Orchestration Architect at Penn State University
 

Customer Service

Sentiment score
7.6
SentinelOne Singularity AI SIEM's support is highly rated for responsiveness, AI-based help, and effective problem resolution.
Sentiment score
6.2
Splunk Enterprise Security support is mixed; users prefer faster resolutions and direct access to advanced support without delays.
SentinelOne Singularity AI SIEM has AI-based technical support available.
IT Security Analyst at a tech consulting company with 11-50 employees
Based on my experience with the technical support of SentinelOne Singularity AI SIEM, I would rate them a ten.
Vice President Cyber Security Practice Head at orbit techsol w pvt.ltd
I would rate the technical support of SentinelOne Singularity AI SIEM a nine.
IT Security Consultant at Systemhaus for you GmbH
We have paid for Splunk support, and we’re not on the free tier hoping for assistance; we are a significant customer and invest a lot in this service.
Senior System Administrator at a tech services company with 5,001-10,000 employees
I have had nothing but good experiences with Splunk support, receiving timely and helpful replies.
Cyber Security Associate at SAP
We've had great customer success managers who have helped us navigate scaling from 600 gigs to 30 terabytes.
Principal Engineer at Aviatrix
 

Scalability Issues

Sentiment score
5.7
SentinelOne Singularity AI SIEM scales efficiently with proper configuration and management, though implementation can be challenging.
Sentiment score
7.3
Splunk Enterprise Security is praised for scalability across environments, efficiently handling data growth, despite initial setup complexity.
With any AI adoption, the end goal should be more governance and data security and safety.
Associate Vice President at Novac Technology Solutions
The performance depends on the configuration.
IT Security Analyst at a tech consulting company with 11-50 employees
It is scalable, and we can increase the compute size. It can scale. There are no challenges.
Vice President Cyber Security Practice Head at orbit techsol w pvt.ltd
We currently rely on disaster recovery and backup recovery, which takes time to recover, during which you're basically blind, so I'm pushing my leadership team to switch over to a clustering environment for constant availability.
IT Security Engineer at a financial services firm with 201-500 employees
It is one of the things that separates it from other tooling, and if not, it is the most scalable solution out there.
Systems Development Engineer at a tech vendor with 10,001+ employees
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
CTO at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
7.7
SentinelOne Singularity AI SIEM is generally praised for stability and fast log searches, though some report past issues.
Sentiment score
7.6
Splunk Enterprise Security is reliable and stable, with minor glitches and excellent support, ideal for high-volume environments.
When it comes to stability, I would give SentinelOne Singularity AI SIEM a nine.
IT Security Consultant at Systemhaus for you GmbH
In terms of performance stability, I have never had any crashes, downtimes, or performance issues.
Cyber Security Engineer at a retailer with 201-500 employees
Even the data lake feature they have, in terms of keeping all the logs intact, those log searches are extremely fast on SentinelOne Singularity AI SIEM, even though the data is very high.
Technical Lead at CloudBolt Software
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk has been very reliable and very consistent.
Principal Engineer at Aviatrix
We need more SMEs, and there is no mechanism to tell us about indexer or search head issues.
Senior Manager at Bank of America
 

Room For Improvement

SentinelOne Singularity AI SIEM struggles with stability, integrations, UI issues, high pricing, and requires improved support and automation.
Splunk Enterprise Security's interface and pricing require improvements, with a focus on user-friendliness, support, and AI integration.
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.
Associate Vice President at Novac Technology Solutions
The interface flickers frequently, and sometimes it does not load properly.
IT Security Analyst at a tech consulting company with 11-50 employees
Whenever OT security comes into the picture, the customers do not allow us to integrate their OT devices on a cloud. It should be available on-premises because the OT SIEM market, in the India market for instance, is something around a four to eight billion dollar market.
Vice President Cyber Security Practice Head at orbit techsol w pvt.ltd
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Resident Consultant (Security Analyst) at helpag
Splunk Enterprise Security is not something that automatically picks things; you have to set up use cases, update data models, and link the right use cases to the right data models for those detections to happen.
Security & Risk Analyst at a computer software company with 1,001-5,000 employees
For any future enhancements or features, such as MLTK and SOAR platform integration, we need more visibility, training, and certification for the skilled professionals who are working.
Security Consultant at Matiq
 

Setup Cost

Splunk Enterprise Security is costly but valued for its advanced features, best for large enterprises with high data needs.
I find SentinelOne's pricing to be reasonable and competitive.
Information Security Principal at a venture capital & private equity firm with 1,001-5,000 employees
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
CTO at a tech vendor with 10,001+ employees
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
System Engineer - Security Presales at Raya Integration
I find it to be affordable, which is why every industry uses it.
Vice President Research And Development at OSINT Ambition
 

Valuable Features

SentinelOne Singularity AI SIEM enhances threat detection and response efficiency with AI-driven insights and flexible integrations.
Splunk Enterprise Security excels in threat detection, integration, and scalability with advanced AI, real-time monitoring, and intuitive interface.
We finally have visibility into things that were never visible before.
IT Security Consultant at Systemhaus for you GmbH
It employs a combination of AI and ML to check for viruses or any other malicious processes, including fileless attacks.
Cyber Security Engineer at a retailer with 201-500 employees
The AI-driven threat detection capabilities improve our overall security posture.
Associate Vice President at Novac Technology Solutions
This capability is useful for performance monitoring and issue identification.
Staff Performance Engineer at ServiceNow
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
Specialist-Infrastructure Opertions at Allianz Technology
 

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)
Splunk Enterprise Security
Ranking in Security Information and Event Management (SIEM)
1st
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
403
Ranking in other categories
Log Management (1st), IT Operations Analytics (1st)
 

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 Splunk Enterprise Security is 7.3%, down from 9.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Splunk Enterprise Security7.3%
SentinelOne Singularity AI SIEM1.4%
Other91.3%
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.
Sathis-Kumar - PeerSpot reviewer
Senior Manager at Bank of America
Helps us detect cyber threats quickly and integrate multiple feeds effectively
Overall, the product is good, but when it comes to some infrastructure issues, we have to dig into more logs. There is no straightforward indication of an issue. Health check kind of dashboards are not available. More AI would help us, and more optimization, since security products run more queries. The AI module could suggest solutions, optimizing queries or workload balancing. If the product itself advises on running queries during peak times, it would be similar to what ChatGPT currently offers. We see quite a few issues on stability. Even last week, we faced something, and identifying bottlenecks is not easy. We need more SMEs, and there is no mechanism to tell us about indexer or search head issues. Self-monitoring dashboards could be beneficial. The technical support still requires more improvement. Often, primary support takes a lot of time and forwards most solutions to the engineering side. The primary support team has very limited knowledge to provide.
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Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Top Industries

By visitors reading reviews
Outsourcing Company
11%
Construction Company
8%
Manufacturing Company
8%
Comms Service Provider
7%
Financial Services Firm
14%
Manufacturing Company
9%
Computer Software Company
8%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise3
Large Enterprise3
By reviewers
Company SizeCount
Small Business125
Midsize Enterprise60
Large Enterprise278
 

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 SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is asking to miss details that are critical, and ending up a statistic. Also, rememb...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingestion of anything, but the charge per GB/Day Indexed and it gets expensive as log ...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitoring information from different sources. Splunk is very good at alerting us if we...
 

Overview

 

Sample Customers

Information Not Available
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about SentinelOne Singularity AI SIEM vs. Splunk Enterprise Security and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.