Price of using AWS OpenSearch service - 750 hours of a single-AZ t2.small.search or t3.small.search instance

Question

I need some additional qualification about about pricing for using  AWS OpenSearch service for old user.

According to the AWS website here: https://aws.amazon.com/free/?ams%23interactive-card-vertical%23pattern-data-339318104.filter=%257B%2522search%2522%253A%2522open%2522%257D

I see for new user: AWS OpenSearch Service is an always free service on the Paid plan. Use your credits to evaluate beyond these monthly limits:
750 hours of a single-AZ t2.small.search or t3.small.search instance
10 GB of month of optional EBS storage (magnetic or general purpose)

It's now clear to mee is this service instance single-AZ t2.small.search free for old accounts?

re:Post Agent · Answer

Yes, the AWS Free Tier for Amazon OpenSearch Service is available to both new and existing AWS customers. You can use up to 750 hours per month of a single-AZ t2.small.search or t3.small.search instance, which are entry-level instances typically used for test workloads. Additionally, you get 10 GB per month of optional Amazon Elastic Block Store (EBS) storage (either Magnetic or General Purpose).

It's important to note that if you exceed these Free Tier usage limits, you will be charged the standard OpenSearch Service rates for any additional resources you use. Also, there is no option to stop an OpenSearch Service instance, so it's recommended to delete it when not needed to avoid consuming your free hours unnecessarily.

When creating an OpenSearch domain to stay within the free tier, make sure to select "Domain without standby" as the deployment option, choose "General Purpose" for the Instance Family, and select either "t2.small.search" or "t3.small.search" as your instance type.  
**Sources**  
[Amazon OpenSearch Service Cost - AWS](https://aws.amazon.com/opensearch-service/pricing/)  
[Amazon OpenSearch Service - Big Data Analytics Options on AWS](https://docs.aws.amazon.com/whitepapers/latest/big-data-analytics-options/elasticsearch.html)  
[How can I access open search with my free tier account | AWS re:Post](https://repost.aws/questions/QUu6YvAruASguifB2x4u8mEQ/how-can-i-access-open-search-with-my-free-tier-account)  
[OSS pricing / usage hours? | AWS re:Post](https://repost.aws/questions/QU69XAaY7HTB6SSRqJD4lUtA/oss-pricing-usage-hours)

Price of using AWS OpenSearch service - 750 hours of a single-AZ t2.small.search or t3.small.search instance

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