Quick Answer
Last verified:
High confidence

Microsoft Azure Cognitive Search costs Free to $5.6K per month as of July 2026, with 8 plans available including a free tier. Plans: Free (free), Basic at $73.73/month, Standard S1 at $245.28/month, Standard S2 at $981.12/month, Standard S3 at $1962.24/month, Storage Optimized L1 at $2802.47/month, and Storage Optimized L2 at $5604.21/month. Enterprise pricing is available on request. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

Microsoft Azure Cognitive Search offers 8 pricing tiers: Free, Basic, Standard S1, Standard S2, Standard S3, Storage Optimized L1, Storage Optimized L2, Developer. A free plan is available. Paid plans include Basic at $73.73/month, Standard S1 at $245.28/month, Standard S2 at $981.12/month.

Last verified: | Sources: 1 pricing pages and reviews
Know Before You Buy — Try Microsoft Azure Cognitive Search Free

Microsoft Azure Cognitive Search lists $0-$5604.21/month, but hidden costs like implementation and support add to the total as of July 2026. Key hidden costs: scale unit (su) costs (dedicated), compute unit (cu/hr) costs (serverless preview), indexed content storage costs. Verified from 1 sources by CostBench.

Hidden Costs Breakdown

1

Scale Unit (SU) Costs (Dedicated)

high implementation

Azure Cognitive Search bills based on Search Units (SUs) in its Dedicated pricing model, which combine partitions and replicas, with an hourly rate dependent on the chosen service tier.

industry

The costs associated with Microsoft Azure Cognitive Search stem from several channels, including per scale unit (SU) charges for searching, additional fees for premium features, and storage costs for indexed content.

2

Compute Unit (CU/hr) Costs (Serverless Preview)

high overage

In the Serverless (Preview) model, billing is consumption-based, measured by Compute Units per hour (CU/hr).

industry

In the Serverless (Preview) model, billing is consumption-based, measured by Compute Units per hour (CU/hr) and per-GB/month for indexed storage.

3

Indexed Content Storage Costs

high overage

Information indexed in Azure Cognitive Search is subject to storage costs, which generally increase with the volume of data stored.

industry

The costs associated with Microsoft Azure Cognitive Search stem from several channels, including per scale unit (SU) charges for searching, additional fees for premium features, and storage costs for indexed content.

4

Higher-End Plans for Disparate Data Sources

medium implementation

Indexing a large quantity of disparate data sources can push users towards higher-end plans, potentially before storage limits are even reached.

industry

Data Sources: Indexing a large quantity of disparate data sources can push users towards higher-end plans, potentially before storage limits are even reached.

5

Semantic Search (Excess Usage)

medium overage

Semantic Search is free for paid Cognitive Search plans with low-volume scenarios (fewer than 1,000 queries per month), but beyond this, it incurs an additional fee based on excess usage and the Cognitive Search edition.

industry

Beyond this, it incurs an additional fee based on excess usage and the Cognitive Search edition.

6

Image Extraction and Custom Entity Lookup

low addon

Defining custom entity lookup skills or applying document cracking to image-based documents incurs additional costs during indexing.

industry

Image Extraction and Custom Entity Lookup: Defining custom entity lookup skills or applying document cracking to image-based documents incurs additional costs during indexing, often at rates comparable to a fraction of a penny per row.

7

AI Enrichment

high addon

AI Enrichment leverages other Cognitive Services like Vision and Language APIs, which can significantly increase costs as these backend services are called.

industry

AI Enrichment: This key feature, which leverages other Cognitive Services (like Vision and Language APIs), can significantly increase costs as these backend services are called.

8

Knowledge Stores, Debug Sessions, and Enrichment Caches Storage

medium addon

Knowledge Stores, Debug Sessions, and Enrichment Caches depend on Azure Storage and incur separate storage costs, appearing on the Azure Storage bill.

industry

Knowledge Stores, Debug Sessions, and Enrichment Caches: These features depend on Azure Storage and incur separate storage costs, appearing on the Azure Storage bill.

9

Customer-Managed Keys

medium compliance

Utilizing customer-managed keys for double encryption requires a billable Azure Key Vault.

industry

Customer-Managed Keys: Utilizing customer-managed keys for double encryption requires a billable Azure Key Vault.

10

Custom Skills

medium implementation

If a skillset includes custom skills, which are functionality provided by the user, these can also incur charges.

industry

Custom Skills: If a skillset includes custom skills (functionality provided by the user), these can also incur charges.

11

Cross-Availability Zone Data Transfer

low implementation

Implementing Azure Cognitive Search often involves cross-availability zone data transfer.

industry

Associated Azure Service Costs (Examples): Implementing Azure Cognitive Search often involves other Azure services, leading to additional costs: * Cross-availability zone data transfer: Approximately $0.01/GB.

12

Container Registry

medium implementation

Implementing Azure Cognitive Search can involve Container Registry services.

industry

Associated Azure Service Costs (Examples): Implementing Azure Cognitive Search often involves other Azure services, leading to additional costs: * Cross-availability zone data transfer: Approximately $0.01/GB.

13

Key Vault Operations

low implementation

Implementing Azure Cognitive Search can involve Key Vault operations.

industry

Associated Azure Service Costs (Examples): Implementing Azure Cognitive Search often involves other Azure services, leading to additional costs: * Cross-availability zone data transfer: Approximately $0.01/GB.

14

Monitoring and Error Handling

medium support

Implementing Azure Cognitive Search can involve costs for monitoring and error handling.

industry

Associated Azure Service Costs (Examples): Implementing Azure Cognitive Search often involves other Azure services, leading to additional costs: * Cross-availability zone data transfer: Approximately $0.01/GB.

15

Additional Cognitive Services

medium addon

The base service cost for a production workload requiring a Standard S1 tier excludes additional cognitive services.

industry

For example, a production workload requiring a Standard S1 tier can start around $250 per month, excluding additional cognitive services, storage, and query unit costs.

16

Additional Storage

medium overage

The base service cost for a production workload requiring a Standard S1 tier excludes additional storage costs, and for the Serverless model, storage costs still apply even when the service is idle.

industry

For example, a production workload requiring a Standard S1 tier can start around $250 per month, excluding additional cognitive services, storage, and query unit costs.

17

Premium Features

medium addon

Optional features like semantic ranker, agentic retrieval, and AI enrichment incur separate charges in addition to the base service cost.

industry

This model incurs a fixed cost as long as the service exists.

Frequently Asked Questions

01 What hidden costs should I budget for with Microsoft Azure Cognitive Search?

Beyond the license fee, budget for: Image Extraction and Custom Entity Lookup (a fraction of a penny per row); Cross-Availability Zone Data Transfer ($0.01/GB); Container Registry ($5–500/month); Key Vault Operations ($0.03 per 10,000 operations); Monitoring and Error Handling ($300–800/month). Exact totals depend on your deployment size and negotiated terms.

02 Does Microsoft Azure Cognitive Search charge for implementation?

Microsoft Azure Cognitive Search implementation is not included in the license cost. Azure Cognitive Search bills based on Search Units (SUs) in its Dedicated pricing model, which combine partitions and replicas, with an hourly rate dependent on the chosen service tier..

03 How much does Microsoft Azure Cognitive Search support cost?

Implementing Azure Cognitive Search can involve costs for monitoring and error handling.. Estimated impact: $300–800/month.

04 Are there overage or storage costs with Microsoft Azure Cognitive Search?

In the Serverless (Preview) model, billing is consumption-based, measured by Compute Units per hour (CU/hr)..

05 What add-ons cost extra with Microsoft Azure Cognitive Search?

Add-on pricing for Microsoft Azure Cognitive Search varies by feature. The sourced cost breakdown above lists any verified add-on costs we have.

Now You Know the Real Cost — Try Microsoft Azure Cognitive Search Free

Check current Microsoft Azure Cognitive Search pricing

Prices and terms change; verify against the live pricing page.

See Microsoft Azure Cognitive Search Pricing