- pass the token to ChatBedrockConverse as api_key so langchain-aws prefers bearer
auth and an ambient AWS_PROFILE can't override it; no AWS access keys required #1103
Bedrock uses the Converse API (langchain-aws) and the AWS credential chain, so
it has its own client like Anthropic/Google rather than the OpenAI-compatible
registry. langchain-aws is an optional dependency (pip install ".[bedrock]"),
lazy-imported with a clear install hint; importing the package never requires
it. The model name is a Bedrock model ID / inference profile ID.
Yijia-Xiao