Find LL-Model Access ID in Bedrock console.

Hello.

I Can Check the cross-region inference model ARN and Model ID from the management console, but as of July 2025, there does not appear to be a console that allows you to check the ARN and Model ID of the base model.
Therefore, I recommend that you check the ARN and Model ID of each model by running the following AWS CLI command:
The following commands can be executed from CloudShell.

# Base Model
aws bedrock list-foundation-models | \
  jq -r '.modelSummaries[] | select(.inferenceTypesSupported[] == "ON_DEMAND") | [
    .modelName,
    .providerName,
    .modelId,
    .modelArn,
    (.inputModalities | join(" ")),
    (.outputModalities | join(" ")),
    .modelLifecycle.status
  ] | @tsv' | column -t -s $'\t'

# cross-region inference
aws bedrock list-inference-profiles --type-equals SYSTEM_DEFINED | \
  jq -r '.inferenceProfileSummaries[] | [
    .inferenceProfileName,
    .inferenceProfileId,
    .inferenceProfileArn,
    .status
  ] | @tsv' | column -t -s $'\t'

By the way, if you just want to check the model ID, you can also check it from the following document.
https://docs.aws.amazon.com/bedrock/latest/userguide/models-supported.html

To find the model access ID for a particular model like 'Nova Micro' in AWS Bedrock, you need to follow these steps:

1. Sign in to the AWS Management Console
2. Navigate to the Amazon Bedrock service
3. In the left navigation pane, under "Bedrock configurations," select "Model access"

This "Model access" page is where you can view all available foundation models, including their access status. This is also where you would request or modify access to models.

When you're on the Model access page, you'll see a list of all available models with their respective model identifiers (access IDs). These identifiers are what you would use when making API calls to invoke the models.

Note that before you can use any foundation model in Amazon Bedrock, you must first request access to it through this Model access page. Some models like Amazon Titan, Mistral AI, and Meta Llama 3 Instruct are automatically available, while others require explicit access requests.

If you don't see the model access option or are having trouble accessing specific models, ensure you're in a supported AWS region for Bedrock, such as US East (N. Virginia/us-east-1) or US West (Oregon/us-west-2), as not all regions support all Bedrock models.
Sources
Why am I getting "The provided model identifier is invalid" | AWS re:Post
Community | Getting started with different LLMs on Amazon Bedrock
How to remove access for Bedrock Models? | AWS re:Post