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Hi,
Did you check if the region that you work in supports the Bedrock model that you want to work with ?
An additional check would be to go in the Bedrock playground in this region and check how the LLMs respond with a few test prompts.
Best,
Didier
Hi Didier,
Yes, I’m working in the Frankfurt (eu-central-1) region, which, according to the AWS documentation, does support the Titan models. I’ve ensured that the models are enabled for this region, but I’m still facing the issue where no models are shown for selection in the Knowledge Base.
Let me know if there’s anything else I might be overlooking.
Thanks for the help!
I understand you're experiencing issues with the Titan model not appearing for Knowledge Base in AWS Bedrock. Let me provide some insights based on the information available.
First, it's important to note that not all Titan models are supported for use with Knowledge Bases in Amazon Bedrock. For converting data into vector embeddings, the supported Titan model is Amazon Titan Embeddings G1 - Text. For generating responses after retrieving information from knowledge bases, the supported Titan model is Amazon Titan Text Premier.
The issue you're experiencing with the console where models aren't appearing could be related to regional availability. Amazon Bedrock knowledge bases are supported in specific regions, including US East (N. Virginia), US West (Oregon), and several others across the Americas, Asia, and Europe. Make sure you're in a supported region for knowledge bases.
Regarding the error you're receiving with boto3, it suggests that the model ARN you're using is not supported for the RetrieveAndGenerate operation. This could be because you're trying to use a Titan model that isn't specifically supported for knowledge bases, or the ARN format is incorrect.
To resolve these issues:
- Double-check that you're in a region that supports knowledge bases.
- Ensure you've enabled the correct Titan models for knowledge bases (Amazon Titan Embeddings G1 - Text for embeddings and Amazon Titan Text Premier for response generation).
- When using boto3, make sure you're constructing the correct model ARN. The format should follow the examples provided in the Amazon Bedrock documentation for the specific model you're trying to use.
- If you're using the console, you should be able to select an available model as part of the steps for creating a knowledge base without needing to construct an ARN manually.
If the issue persists after verifying these points, it may be worth contacting AWS support for further assistance, as there could be account-specific or regional issues at play.
Sources
Supported regions and models for Amazon Bedrock knowledge bases - Amazon Bedrock
Overview of Amazon Titan models - Amazon Bedrock
Same issue here. I can’t select any models — it just keeps loading indefinitely without showing anything. I do have models access from Amazon Titan, Meta and Mistral while I do not have access to Anthropic Claude models (due to payment method error which I am trying to resolve with AWS support team).