[DOCS] Discrepancy in Primary Amazon Bedrock Model IDs for Claude 4.5

Documentation Type

Unclear/confusing documentation

Documentation Location

• https://platform.claude.com/docs/en/about-claude/models/overview - https://code.claude.com/docs/en/amazon-bedrock

Section/Topic

The primary model identification tables for Amazon Bedrock, specifically regarding the model ID for Claude 3.7 Sonnet and Claude 4.5 Sonnet.

Current Documentation

In the Platform Docs (Part 1 - Models Overview Table), the ID is listed without the global prefix:

AWS Bedrock ID: anthropic.claude-sonnet-4-5-20250929-v1:0

In the Claude Code Docs (Amazon Bedrock Section), the ID includes the global prefix:

Primary model: global.anthropic.claude-sonnet-4-5-20250929-v1:0

Furthermore, in the Platform Docs (Part 3 - Claude on Amazon Bedrock), the documentation states:

"The model IDs for Claude Sonnet 4.5 and 4 already include the global. prefix."

What's Wrong or Missing?

There is a major inconsistency between the primary model overview table and the specific implementation guides.

1. The Models Overview table in the platform documentation provides an ID that results in regional pinning.
2. The Claude Code documentation correctly identifies the global. prefix required for high availability.
3. The Bedrock specific guide in the platform docs contradicts its own overview table by stating the IDs "already include" the prefix, even though the overview table omits it.

This leads to user confusion when configuring environment variables like ANTHROPIC_MODEL, as users copying from the main table will inadvertently bypass the high-availability global routing.

Suggested Improvement

Update the Models Overview table in platform.claude.com/docs/en/about-claude/models/overview to include the global. prefix for all Claude 4.5 and Claude 4 models.

Suggested Table Update:
| Model | Base Bedrock model ID |
| :--- | :--- |
| Claude Sonnet 4.5 | global.anthropic.claude-sonnet-4-5-20250929-v1:0 |
| Claude Sonnet 4 | global.anthropic.claude-sonnet-4-20250514-v1:0 |
| Claude Opus 4.5 | global.anthropic.claude-opus-4-5-20251101-v1:0 |
| Claude Haiku 4.5 | global.anthropic.claude-haiku-4-5-20251001-v1:0 |

Impact

High - Prevents users from using a feature

Additional Context

• Related Documentation: The section "Global vs regional endpoints" in the Amazon Bedrock guide explicitly recommends the global. prefix for maximum availability and uptime.
• Impact: Developers using automated infrastructure (Terraform/CloudFormation) or CLI environment variables based on the "Overview" page will experience regional outages that could have been avoided by using the global endpoint.