Build a powerful question answering bot with Amazon SageMaker, Amazon OpenSearch Service, Streamlit, and LangChain
The solution uses one instance each of ml.g5.12xlarge and ml.g5.24xlarge for SageMaker endpoint ; you can check the availability of these instances in your AWS account and request these instances as needed via a Sevice Quota increase.

Choose your right Cloudformation region and deploy: AWS Region Link
us-east-1 Link
us-west-2 Link
eu-west-1 Link
ap-northeast-1 Link
Follow : "Ingest the data into OpenSearch Service" Section in the AWS Blog to continue.