Talk with sales and see if they can get you a trial period so you can measure your ingest. There is a pay as you go option and it’s best if you are under like 70gb iirc. Answer from After-Vacation-2146 on reddit.com
Microsoft
microsoft.com › en-us › security › pricing › microsoft-sentinel
Microsoft Sentinel Pricing | Microsoft Security
Promotional price varies by region and is subject to change.2 · Commitment tiers offer predictable costs and savings up to 52% over Pay-As-You-Go rates by allowing customers to reserve daily data ingestion capacity for the analytics tier, from 100 GB to 50,000 GB. They can be upgraded at any time and downgraded after 31 days. Usage exceeding the commitment tier will be billed at the same discounted rate.3 · Microsoft Sentinel data lake enables security teams to ingest, retain, and analyze massive volumes of security data cost-effectively.
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Reddit
reddit.com › r/cybersecurity › microsoft sentinel cost estimate?
r/cybersecurity on Reddit: Microsoft Sentinel cost estimate?
June 4, 2025 -
Is there a way I can guess what payment tier of Sentinel I should shoot for since cost is measured by GB analyzed? Even the 100 GB per day tier works out to $123,925 per year and that would rule out using it at all unless the pay-as-you-go option is radically more affordable for a relatively small org.
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Talk with sales and see if they can get you a trial period so you can measure your ingest. There is a pay as you go option and it’s best if you are under like 70gb iirc.
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If you're looking to ingest data from outside of Microsoft's ecosystem in any serious way, then you're going to find that sentinel gets very expensive very quickly. I've just completed a piece of work for one of my customers comparing the running costs of sentinel Vs another SIEM with a data volume of circa 350GB data per day. Sentinel worked out to be over £300,000 more expensive per year compared to the alternative.
TrustRadius
trustradius.com › home › security information and event management (siem) › microsoft sentinel › pricing
Microsoft Sentinel Pricing 2025
Microsoft Sentinel has 7 pricing plans(s). Available deployment types include saas. Review pricing options and learn more about the product to determine which plan is right for you.
Microsoft Learn
learn.microsoft.com › en-us › azure › sentinel › enroll-simplified-pricing-tier
Enroll in a simplified pricing tier for Microsoft Sentinel | Microsoft Learn
The price is also expressed as 0.6 units of the commitment tier per day rate. Workspace C is a Microsoft Sentinel enabled workspace that ingested 3 TB of data. Its commitment tier detail shows the price equals 3 TB multiplied by the Microsoft ...
Microsoft Learn
learn.microsoft.com › en-us › azure › sentinel › billing-pre-purchase-plan
Optimize costs with a prepurchase plan - Microsoft Sentinel | Microsoft Learn
A $100,000 USD pre-purchase plan ... paying Microsoft Sentinel costs for 12 months. The pre-purchase plan is bought at a 22% discount for $78,000 USD. The savings for the commitment tier and the pre-purchase plan combine.
Chartingcyber
chartingcyber.com › post › microsoft-sentinel-and-defender-more-expensive-than-you-think
Charting Cyber - Microsoft Sentinel Cost, Plus Defender: More Expensive Than You Think
So there is no direct license cost for Sentinel, you are paying for the data ingested and stored. Pricing is broken down into different groups: Pay-as-you-go and Commitment Tiers. The real challenge is the first tier doesn't start until 100GB/day. That is a LOT of log data!
Microsoft Learn
learn.microsoft.com › en-us › azure › sentinel › billing-reduce-costs
Reduce costs for Microsoft Sentinel | Microsoft Learn
Costs for Microsoft Sentinel are only a portion of the monthly costs in your Azure bill.
Microsoft Learn
learn.microsoft.com › en-us › azure › sentinel › billing-monitor-costs
Manage and monitor costs for Microsoft Sentinel | Microsoft Learn
When you use cost analysis, you view Microsoft Sentinel costs in graphs and tables for different time intervals. Some examples are by day, current and prior month, and year. You also view costs against budgets and forecasted costs. Switching to longer views over time can help you identify spending trends.
Microsoft Azure
azure.microsoft.com › en-ca › pricing › offers › sentinel-microsoft-365-offer
Microsoft 365 E5 benefit offer with Microsoft Sentinel | Microsoft Azure
In addition to this data grant, the following Microsoft 365 data sources are always free for all Microsoft Sentinel users: ... Alerts from Microsoft Defender for Cloud, Microsoft Defender XDR, Microsoft Defender for Office 365, Microsoft Defender for Identity, Microsoft Defender for Endpoint, and Microsoft Defender for Cloud Apps. [1] Calculation based on pay-as-you-go prices for Microsoft Sentinel and Azure Monitor Log Analytics for US East region.