Skip to content

Update default model to be Claude 4 Sonnet #467

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jul 15, 2025
Merged

Update default model to be Claude 4 Sonnet #467

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,7 @@ agent = Agent(tools=[calculator])
agent("What is the square root of 1764")
```

> **Note**: For the default Amazon Bedrock model provider, you'll need AWS credentials configured and model access enabled for Claude 3.7 Sonnet in the us-west-2 region. See the [Quickstart Guide](https://strandsagents.com/) for details on configuring other model providers.
> **Note**: For the default Amazon Bedrock model provider, you'll need AWS credentials configured and model access enabled for Claude 4 Sonnet in the us-west-2 region. See the [Quickstart Guide](https://strandsagents.com/) for details on configuring other model providers.

## Installation

Expand Down
6 changes: 3 additions & 3 deletions src/strands/models/bedrock.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@

logger = logging.getLogger(__name__)

DEFAULT_BEDROCK_MODEL_ID = "us.anthropic.claude-3-7-sonnet-20250219-v1:0"
DEFAULT_BEDROCK_MODEL_ID = "us.anthropic.claude-sonnet-4-20250514-v1:0"
DEFAULT_BEDROCK_REGION = "us-west-2"

BEDROCK_CONTEXT_WINDOW_OVERFLOW_MESSAGES = [
Expand Down Expand Up @@ -67,7 +67,7 @@ class BedrockConfig(TypedDict, total=False):
guardrail_redact_output: Flag to redact output if guardrail is triggered. Defaults to False.
guardrail_redact_output_message: If a Bedrock Output guardrail triggers, replace output with this message.
max_tokens: Maximum number of tokens to generate in the response
model_id: The Bedrock model ID (e.g., "us.anthropic.claude-3-7-sonnet-20250219-v1:0")
model_id: The Bedrock model ID (e.g., "us.anthropic.claude-sonnet-4-20250514-v1:0")
stop_sequences: List of sequences that will stop generation when encountered
streaming: Flag to enable/disable streaming. Defaults to True.
temperature: Controls randomness in generation (higher = more random)
Expand Down Expand Up @@ -432,7 +432,7 @@ def _stream(
):
e.add_note(
"└ For more information see "
"https://strandsagents.com/user-guide/concepts/model-providers/amazon-bedrock/#model-access-issue"
"https://strandsagents.com/latest/user-guide/concepts/model-providers/amazon-bedrock/#model-access-issue"
)

if (
Expand Down
2 changes: 1 addition & 1 deletion tests/strands/models/test_bedrock.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1148,7 +1148,7 @@ async def test_add_note_on_access_denied_exception(bedrock_client, model, alist)
"└ Bedrock region: us-west-2",
"└ Model id: m1",
"└ For more information see "
"https://strandsagents.com/user-guide/concepts/model-providers/amazon-bedrock/#model-access-issue",
"https://strandsagents.com/latest/user-guide/concepts/model-providers/amazon-bedrock/#model-access-issue",
]


Expand Down
Loading