Amazon OpenSearch vs Azure AI Search: Pricing Comparison (2026)
Updated Apr 4, 2026AWSAzure
Overall Winner
AWS
AWS Wins
3
Azure Wins
1
Ties
0
Pricing Analysis
AWS wins 3 of 4 price comparisons, averaging 53.7% lower prices in categories where it leads.
Prices range from $0.0750/hr to $16.12/hr across comparable tiers.
- ●AWS leads in Amazon OpenSearch Service Instance (3/4 tiers, avg 54% difference)
Choose AWS
Best for Amazon OpenSearch Service Instance workloads
Side-by-Side Pricing
Comparing Amazon OpenSearch and Azure AI Search across 4 equivalent tiers. On-demand hourly rates are shown in USD for the default region.
Sort by:
| Category | AWS Amazon OpenSearch | Azure Azure AI Search | Diff | Cheapest |
|---|---|---|---|---|
Amazon OpenSearch Service Instance - m8g.medium.search | $0.0750/hr m8g.medium.search ($54.75/mo) | $0.3360/hr Standard S1 - Standard S1 Unit ($245.28/mo) | +77.7% | AWS |
Amazon OpenSearch Service Instance - m4.2xlarge.search | $0.6030/hr m4.2xlarge.search ($440.19/mo) | $1.3440/hr Standard S2 - Standard S2 Unit ($981.12/mo) | +55.1% | AWS |
Amazon OpenSearch Service Instance - r4.8xlarge.search | $3.1390/hr r4.8xlarge.search ($2,291.47/mo) | $2.9568/hr Standard S3 CC - Standard S3 CC Unit ($2,158.46/mo) | +5.8% | Azure |
Amazon OpenSearch Service Instance - m7i.12xlarge.search | $3.8710/hr m7i.12xlarge.search ($2,825.83/mo) | $16.1200/hr Semantic Ranker - Semantic Ranker Unit ($11,767.60/mo) | +76.0% | AWS |
When to Choose AWS Amazon OpenSearch
- ✓Amazon OpenSearch Service Instance - m8g.medium.search - saves $190.53/mo (77.7% cheaper)
- ✓Amazon OpenSearch Service Instance - m4.2xlarge.search - saves $540.93/mo (55.1% cheaper)
- ✓Amazon OpenSearch Service Instance - m7i.12xlarge.search - saves $8,941.77/mo (76% cheaper)
When to Choose Azure Azure AI Search
- ✓Amazon OpenSearch Service Instance - r4.8xlarge.search - saves $133.01/mo (5.8% cheaper)
Monthly Cost Examples
Amazon OpenSearch Service Instance - m8g.medium.search
AWS m8g.medium.search$54.75/mo
Azure Standard S1 - Standard S1 Unit$245.28/mo
Amazon OpenSearch Service Instance - r4.8xlarge.search
AWS r4.8xlarge.search$2,291.47/mo
Azure Standard S3 CC - Standard S3 CC Unit$2,158.46/mo
Amazon OpenSearch Service Instance - m7i.12xlarge.search
AWS m7i.12xlarge.search$2,825.83/mo
Azure Semantic Ranker - Semantic Ranker Unit$11,767.60/mo
Individual Pricing Details
Related Comparisons
AWS EC2 vs Azure Virtual Machines Pricing
Compare AWS EC2 and Azure Virtual Machines pricing side by side
AWS EC2 vs DO Droplets Pricing
Compare AWS EC2 and DO Droplets pricing side by side
AWS EC2 vs GCP Compute Engine Pricing
Compare AWS EC2 and GCP Compute Engine pricing side by side
AWS vs Azure
Overall pricing comparison
AWS vs GCP
Overall pricing comparison
AWS vs DO
Overall pricing comparison
AWS vs Hetzner
Overall pricing comparison
AWS vs Linode
Overall pricing comparison
AWS vs OCI
Overall pricing comparison
AWS vs Vultr
Overall pricing comparison