How to use OpenAI models on AWS Bedrock

OpenAI models like GPT-5.4 and GPT-5.5 are available on AWS Bedrock platform

OpenAI frontier models and Codex are now generally available on AWS, giving enterprises a new way to build on Amazon Bedrock with OpenAI through the security, compliance, and governance workflows they already use.

This is also the beginning of a broader expansion of OpenAI…

— OpenAI (@OpenAI) June 1, 2026

How to use it?

curl --location 'https://bedrock-mantle.us-east-2.api.aws/openai/v1/responses' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer $BEDROCK_API_KEY' \
--data '{
    "model": "openai.gpt-5.4",
    "input": "Write a one-sentence bedtime story about a unicorn."
  }'

Replace BEDROCK_API_KEY with your AWS Bedrock long-term API key.

And update us-east-2 with your region but make sure that it is available on that region.

You can read more about it in their docs here: https://docs.aws.amazon.com/bedrock/latest/userguide/model-cards-openai.html