> ## Documentation Index
> Fetch the complete documentation index at: https://agno-v2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# AWS Bedrock

> Configuration reference for AwsBedrock, Agno's model class for models hosted on AWS Bedrock.

The AWS Bedrock model provides access to models hosted on AWS Bedrock.

## Parameters

| Parameter | Type | Default | Description |
| - | - | - | - |
| `id` | `str` | `"mistral.mistral-small-2402-v1:0"` | The ID of the AWS Bedrock model to use |
| `name` | `str` | `"AwsBedrock"` | The name of the model |
| `provider` | `str` | `"AwsBedrock"` | The provider of the model |
| `temperature` | `Optional[float]` | `None` | Controls randomness in the model's output |
| `max_tokens` | `Optional[int]` | `None` | Maximum number of tokens to generate |
| `top_p` | `Optional[float]` | `None` | Controls diversity via nucleus sampling |
| `stop_sequences` | `Optional[List[str]]` | `None` | A list of strings that the model should stop generating text at |
| `request_params` | `Optional[Dict[str, Any]]` | `None` | Additional parameters to include in the request |
| `append_trailing_user_message` | `Optional[bool]` | `None` | Append a trailing user message when required. When unset, enabled for models without prefill support |
| `trailing_user_message_content` | `str` | `"continue"` | Content of the appended trailing user message |
| `aws_region` | `Optional[str]` | `None` | The AWS region to use (defaults to AWS\_REGION env var) |
| `aws_access_key_id` | `Optional[str]` | `None` | AWS access key ID (defaults to AWS\_ACCESS\_KEY\_ID env var) |
| `aws_secret_access_key` | `Optional[str]` | `None` | AWS secret access key (defaults to AWS\_SECRET\_ACCESS\_KEY env var) |
| `aws_session_token` | `Optional[str]` | `None` | AWS session token (defaults to AWS\_SESSION\_TOKEN env var) |
| `aws_sso_auth` | `Optional[bool]` | `False` | Authenticate with the current profile's SSO session instead of access keys |
| `session` | `Optional[Session]` | `None` | boto3 Session object to use for authentication |
| `async_session` | `Optional[Any]` | `None` | aioboto3 Session object for async calls |
| `client` | `Optional[AwsClient]` | `None` | Pre-configured Bedrock runtime client |
| `async_client` | `Optional[Any]` | `None` | Pre-configured async Bedrock runtime client |
| `model_type` | `ModelType` | `ModelType.MODEL` | Functional role of this model (e.g. `MODEL`, `OUTPUT_MODEL`, `PARSER_MODEL`). Set by the agent |
| `supports_native_structured_outputs` | `bool` | `False` | Whether the model supports structured outputs natively |
| `supports_json_schema_outputs` | `bool` | `False` | Whether the model uses JSON schema for structured outputs |
| `system_prompt` | `Optional[str]` | `None` | System prompt from the model added to the agent |
| `instructions` | `Optional[List[str]]` | `None` | Instructions from the model added to the agent |
| `tool_message_role` | `str` | `"tool"` | Role of tool messages |
| `assistant_message_role` | `str` | `"assistant"` | Role of assistant messages |
| `cache_response` | `bool` | `False` | Cache model responses to avoid redundant API calls during development |
| `cache_ttl` | `Optional[int]` | `None` | Time-to-live for cached responses, in seconds |
| `cache_dir` | `Optional[str]` | `None` | Directory for the response cache. Defaults to `~/.agno/cache/model_responses` |
| `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 |
| `retry_with_guidance` | `bool` | `True` | Retry a failed model invocation once with a guidance message appended |
| `retry_with_guidance_limit` | `int` | `1` | Number of times to retry the model invocation with guidance |


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