Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
id | str | "global.anthropic.claude-sonnet-4-5-20250929-v1:0" | The ID of the AWS Bedrock Claude model to use |
name | str | "AwsBedrockAnthropicClaude" | The name of the model |
provider | str | "AwsBedrock" | The provider of the model |
aws_access_key | Optional[str] | None | AWS access key (defaults to AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY env var) |
aws_secret_key | Optional[str] | None | AWS secret key (defaults to AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY env var) |
aws_session_token | Optional[str] | None | AWS session token (defaults to AWS_SESSION_TOKEN env var) |
aws_region | Optional[str] | None | The AWS region to use (defaults to AWS_REGION env var) |
session | Optional[Session] | None | boto3 session for credential resolution. Credentials are re-resolved on each request, so rotated credentials (IAM roles, instance profiles, STS) keep working |
max_tokens | Optional[int] | 8192 | Maximum number of tokens to generate in the chat completion |
thinking | Optional[Dict[str, Any]] | None | Configuration for the thinking (reasoning) process |
temperature | Optional[float] | None | Controls randomness in the model’s output |
stop_sequences | Optional[List[str]] | None | A list of strings that the model should stop generating text at |
top_p | Optional[float] | None | Controls diversity via nucleus sampling |
top_k | Optional[int] | None | Controls diversity via top-k sampling |
cache_system_prompt | Optional[bool] | False | Whether to cache the system prompt for improved performance |
extended_cache_time | Optional[bool] | False | Whether to use extended cache time (1 hour instead of default) |
request_params | Optional[Dict[str, Any]] | None | Additional parameters to include in the request |
client_params | Optional[Dict[str, Any]] | None | Additional parameters for client configuration |
retries | int | 0 | Number of retries to attempt before raising a ModelProviderError |
delay_between_retries | int | 1 | Delay between retries, in seconds |
exponential_backoff | bool | False | If True, the delay between retries is doubled each time |
The inherited
api_key parameter is not supported for Bedrock authentication. Setting it (directly or via AWS_BEDROCK_API_KEY) without a session raises a ValueError. Authenticate with aws_access_key/aws_secret_key, the AWS environment variables, or a boto3 session instead.