使用 Amazon Bedrock 模型时遇到“ResourceNotFoundException”

Question

我正在尝试使用 Amazon Bedrock 中的基础模型来使用 Python 构建一个简单的聊天机器人。我创建 Boto3 客户端并将模型 ID、接受和内容类型设置为：

bedrock = boto3.client(
  service_name='bedrock-runtime', 
  region_name="us-east-1"
)

modelId = 'cohere.command-text-v14'
accept = 'application/json'
contentType = 'application/json'
body = json.dumps({
    "prompt": "Hello World",
    "temperature": 0.75,
    "p": 0.01,
    "k": 0,
})

然后我尝试使用 invoke_model 生成文本：

response = bedrock.invoke_model(body=body, modelId=modelId, accept=accept, contentType=contentType)
response_body = json.loads(response.get('body').read())
print(response_body['generations'][0]['text'])

我收到以下错误：

---------------------------------------------------------------------------
ResourceNotFoundException                 Traceback (most recent call last)

      3 contentType = 'application/json'
      4 
----> 5 response = bedrock.invoke_model(body=body, modelId=modelId, accept=accept, contentType=contentType)
      6 
      7 response_body = json.loads(response.get('body').read())

~/Library/Python/3.8/lib/python/site-packages/botocore/client.py in _api_call(self, *args, **kwargs)
    551                 )
    552             # The "self" in this scope is referring to the BaseClient.
--> 553             return self._make_api_call(operation_name, kwargs)
    554 
    555         _api_call.__name__ = str(py_operation_name)

~/Library/Python/3.8/lib/python/site-packages/botocore/client.py in _make_api_call(self, operation_name, api_params)
   1007             )
   1008             error_class = self.exceptions.from_code(error_code)
-> 1009             raise error_class(parsed_response, operation_name)
   1010         else:
   1011             return parsed_response

ResourceNotFoundException: An error occurred (ResourceNotFoundException) when calling the InvokeModel operation: Could not resolve the foundation model from the provided model identifier.

我在 Amazon Bedrock 文档中读到了此错误，这似乎是服务 ARN 的问题（不确定该如何处理）。

Answer 1

您是否请求访问模型？我遇到了类似的错误，这就是问题所在。

https://docs.aws.amazon.com/bedrock/latest/userguide/model-access.html