claude-code - 💡(How to fix) Fix [BUG] Claude code doesn't work with opus 4.7 in bedrock [5 comments, 6 participants]

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anthropics/claude-code#49279Fetched 2026-04-17 08:45:46
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Error Message

None of them working and throwing 400 error. Please fix it.

Error Messages/Logs

400 error

Code Example

400 error
RAW_BUFFERClick to expand / collapse

Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

Tried using both the inference profiles -

  1. us.
  2. global.

None of them working and throwing 400 error. Please fix it.

What Should Happen?

Ideally the model should respond in claude code.

Error Messages/Logs

400 error

Steps to Reproduce

Using any of the inference profiles as the env and then run claude code.

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

No response

Claude Code Version

2.1.111

Platform

AWS Bedrock

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

No response

extent analysis

TL;DR

The issue with the Claude Code inference profiles throwing a 400 error may be resolved by investigating the configuration or compatibility of the Opus model with the current setup.

Guidance

  • Verify that the Opus model is correctly configured and compatible with the Claude Code version 2.1.111.
  • Check the documentation for any specific requirements or restrictions for using the inference profiles with the Opus model.
  • Test the inference profiles with a different model to isolate if the issue is specific to the Opus model.
  • Review the AWS Bedrock platform settings to ensure they are correctly configured for the Claude Code application.

Example

No code snippet is provided as the issue does not contain sufficient technical details to create a relevant example.

Notes

The lack of detailed error messages or logs limits the ability to provide a more specific solution. Further investigation into the configuration and compatibility of the Opus model with the Claude Code application is necessary.

Recommendation

Apply workaround: Investigate and adjust the configuration of the Opus model or the Claude Code application to resolve the compatibility issue, as the problem has never worked and there is no previous working version to revert to.

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claude-code - 💡(How to fix) Fix [BUG] Claude code doesn't work with opus 4.7 in bedrock [5 comments, 6 participants]