[BUG] API Error: 500 Internal server error. This is a server-side issue, usually temporary — try again in a moment. If it persists, check status.claude.com.

Preflight Checklist

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

What's Wrong?

I am getting this in a relatively new session:

Something went wrong
Try sending your message again. If it keeps happening, share feedback so we can investigate.

API Error: 500 Internal server error. This is a server-side issue, usually temporary — try again in a moment. If it persists, check status.claude.com.
You can restart the conversation from an earlier message.

What Should Happen?

We should not see this error.

Error Messages/Logs

Something went wrong
Try sending your message again. If it keeps happening, share feedback so we can investigate.

API Error: 500 Internal server error. This is a server-side issue, usually temporary — try again in a moment. If it persists, check status.claude.com.
You can restart the conversation from an earlier message.

Steps to Reproduce

I get that error even if I say, "Are you there?"

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

I'm not using Claude Code. I'm using latest version of Claude CoWork.

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_