[ERROR] ValidationException: An error occurred (ValidationException) when calling the InvokeModel operation: Could not process image

Thank you for your reply! Sorry but my case is not in the link you shared, I think. Here is the code I am using, which is using bedrock-runtime.

bedrock = boto3.client(
    'bedrock-runtime',
    region_name=os.environ.get('BEDROCK_REGION', 'ap-southeast-2'),
)

def run_completion(
    messages: list[dict[str, Any]],
    top_k: int = 1,
    max_tokens: int = 2000,
) -> tuple[str, int, int]:
    body = json.dumps(
        {
            'anthropic_version': 'bedrock-2023-05-31',
            'max_tokens': max_tokens,
            'messages': messages,
            'top_k': top_k,
        },
        ensure_ascii=False,
    )
    modelId = os.environ.get('BEDROCK_MODEL_ID', 'anthropic.claude-3-sonnet-20240229-v1:0')  # noqa
    accept = 'application/json'
    contentType = 'application/json'  # noqa

    response = bedrock.invoke_model(
        body=body,
        modelId=modelId,
        accept=accept,
        contentType=contentType,
    )

Hi,

Thank you for posting your question.

We have covered this topic in this re:Post Knowledge Center Article How do I troubleshoot the InvokeModel API error in Amazon Bedrock?.

As mentioned in the above post, you might need to specify bedrock-runtime as a service in your API call.

Comment here if you have additional questions, happy to help.

Abhishek