[BUG] API Error: 500

Resolved 💬 6 comments Opened Jan 22, 2026 by chashamm Closed Jan 23, 2026

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?

Getting this error every prompt sent
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CXPBvcF9LAFhUJBRr4vXF"}

What Should Happen?

It should say hi when i say hi and not API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CXPBvcF9LAFhUJBRr4vXF"}

Error Messages/Logs

Just prints:"API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CXPBvcF9LAFhUJBRr4vXF"}"

Steps to Reproduce

  1. Open claude
  2. Write Hi
  3. Get an error
  4. Thats it.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.16

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

It keeps saying 2.1.17 for version but its still shows 2.1.16 when --version

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