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Microsoft Azure AI Speech

Second-largest cloud, integrated with Microsoft's enterprise software

Overview

Microsoft Sentinel is Microsoft’s cloud-native SIEM, delivered as an Azure service and increasingly sold alongside the Microsoft Defender security products. Its pricing page divides storage into an analytics tier, which supports all log types with full analytics, alerting and query capabilities, and a lower-cost data lake tier intended for long-term storage of security data used in investigations and hunting[1].

Sentinel is unusual among enterprise SIEMs in publishing its price structure. Analytics-tier ingestion is billed either pay-as-you-go or through commitment tiers that reserve daily capacity from 100 GB to 50,000 GB per day; Microsoft states that commitment tiers save up to 52% over pay-as-you-go rates and can be upgraded at any time[1]. On 1 October 2025 Microsoft announced a public preview of a smaller 50 GB-per-day commitment tier at promotional pricing, available to sign-ups until 31 December 2026 with the promotional rate held until 31 March 2027[1]. Newer AI features, such as an entity analyzer exposed through the Model Context Protocol, can consume Security Compute Units, which are billed separately[1].

Microsoft reported revenue of US$331.8 billion for the fiscal year ended 30 June 2026[25]. The main limitation is cost predictability: actual bills depend on data volumes, retention choices and region, and Microsoft describes its listed prices as estimates rather than quotes[1].

Microsoft Azure AI Speech features

  • Analytics tier with full query, alerting and analytics
  • Low-cost data lake tier for long-term security data
  • Commitment tiers from 100 GB to 50,000 GB per day
  • 50 GB/day commitment tier in promotional preview
  • AI tools billed through Security Compute Units
  • Native connection to Microsoft Defender and Azure services
  • Virtual machines and App Service
  • Azure Kubernetes Service

Microsoft Azure AI Speech pricing

Consumption-based. Pay-as-you-go per GB ingested into the analytics tier, or a commitment tier reserving 100–50,000 GB per day with savings of up to 52%; separate meters for the data lake tier, search jobs and AI compute. A 50 GB/day promotional tier is open to sign-ups until 31 December 2026. Microsoft notes that prices vary by region and are estimates.

Microsoft Azure AI Speech strengths and limitations

Strengths

  • Published price structure, unusual for an enterprise SIEM
  • Tiered storage separates hot analytics from cheap long-term retention
  • Tight integration with Microsoft security and identity products
  • No infrastructure to run
  • Strong integration with Microsoft products
  • Licensing benefits for Windows and SQL Server

Limitations

  • Bills scale with ingestion volume and can be hard to forecast
  • Several separate meters (analytics, data lake, search, AI compute)
  • Strongest fit inside the Microsoft ecosystem
  • Azure-only hosting
  • Complex pricing
  • Credit expires after 30 days

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