Paths · Bedrock

Three routes. One Bedrock key.

Put bedrock/ in front of the model id. The prefix is removed before the call. Amazon is not a partner of REA.

What is true on every route

Three routes, one Bedrock API key. AWS bills that account. REA does not. Amazon is not a partner of REA. The default region is us-east-2. Another region is bedrock: plus a region from the list, then the model id. A free-form host is not accepted. The prefix is removed before the call.

A model the account has not enabled for that route comes back as: this model is not supported on this Bedrock route. Invoke and Converse are not translated.

The three routes

Chat Completions. The Chat Completions models that account has enabled. Not a fixed catalog, and not a count.
Claude on Bedrock. The Messages route. The chat path does not carry these models.
Responses. The OpenAI models that account has enabled on the Responses API. gpt-oss stays on Chat Completions. Claude stays on Messages.