AWS Bedrock + Anthropic Claude: The Complete Troubleshooting Guide (2026)

> Three undocumented gotchas that will save you hours of debugging

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TL;DR

Getting cryptic errors trying to use Anthropic Claude models on AWS Bedrock? Here are the three issues I encountered and their fixes:

| Problem | Error Message | Solution | |---------|---------------|----------| | Form validation | "Model use case details have not been submitted" | Use www. prefix in website URL | | Wrong model ID | "on-demand throughput isn't supported" | Use us.anthropic.claude-* (with regional prefix) | | Can't find settings | N/A | Go to Model Catalog, not Model Access |

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Introduction

I recently spent several hours debugging what seemed like a simple task: getting Claude models to work on AWS Bedrock.

The error messages were cryptic. The documentation was scattered. And some crucial details weren't documented at all.

This guide documents everything I learned so you don't have to go through the same frustration.

What you'll learn:

How to correctly submit the Anthropic use case form

The difference between model IDs and inference profile IDs

Where to find model settings after AWS retired the Model Access page

Working commands to test all Claude models

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