If you’re getting a ValidationException error when trying to access Anthropic Claude models on Amazon Bedrock, it usually means your account hasn’t been granted access to those models in your current region. To fix this, you’ll need to request access through the Amazon Bedrock console.
Start by opening the Amazon Bedrock console in the region you’re working in, such as US East N. Virginia. On the left side menu, find the Model access section. Here, you can submit a request for the specific Claude models you want to use, like Claude Haiku. For most models, the request will be processed automatically, but some might need additional review before access is granted.
If you’ve already contacted AWS Support about this issue, you can add updates or follow-up messages through the AWS Support Center at https://console.aws.amazon.com/support/. If you want quicker responses in the future, consider reviewing your AWS Support plan options, since different plans offer varying response times.
Once your access to the models is approved in the Bedrock console, the ValidationException error should go away. Then, you’ll be able to use the Claude models through the API and the Playground. Just remember, the access is specific to the region you requested it in, so make sure you’re requesting access in the same region where you’ll be trying to use the models.