Created
July 12, 2024 02:50
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Invoke Amazon Bedrock Claude 3 with an image in message block
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| # Use the native inference API to send a text message to Anthropic Claude. | |
| import boto3 | |
| import json | |
| import base64 | |
| import httpx | |
| from botocore.exceptions import ClientError | |
| # Create a Bedrock Runtime client in the AWS Region of your choice. | |
| client = boto3.client("bedrock-runtime", region_name="us-east-1") | |
| # Set the model ID, e.g., Claude 3 Haiku. | |
| model_id = "anthropic.claude-3-haiku-20240307-v1:0" | |
| # Get an image and encode it to Base64 format | |
| image1_url = "https://upload.wikimedia.org/wikipedia/commons/a/a7/Camponotus_flavomarginatus_ant.jpg" | |
| image1_media_type = "image/jpeg" | |
| image1_data = base64.b64encode(httpx.get(image1_url).content).decode("utf-8") | |
| # Format the request payload using the model's native structure. | |
| native_request = { | |
| "anthropic_version": "bedrock-2023-05-31", | |
| "max_tokens": 512, | |
| "temperature": 0.5, | |
| "messages": [ | |
| { | |
| "role": "user", | |
| "content": [ | |
| { | |
| "type": "image", | |
| "source": { | |
| "type": "base64", | |
| "media_type": image1_media_type, | |
| "data": image1_data, | |
| }, | |
| }, | |
| { | |
| "type": "text", | |
| "text": "Describe this image." | |
| } | |
| ], | |
| } | |
| ], | |
| } | |
| # Convert the native request to JSON. | |
| request = json.dumps(native_request) | |
| try: | |
| # Invoke the model with the request. | |
| response = client.invoke_model(modelId=model_id, body=request) | |
| except (ClientError, Exception) as e: | |
| print(f"ERROR: Can't invoke '{model_id}'. Reason: {e}") | |
| exit(1) | |
| # Decode the response body. | |
| model_response = json.loads(response["body"].read()) | |
| # Extract and print the response text. | |
| response_text = model_response["content"][0]["text"] | |
| print(response_text) |
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