[BUG] Claude Code hangs on in loading model when press /model

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?

<img width="752" height="615" alt="Image" src="https://github.com/user-attachments/assets/ea3c8ced-253c-482e-bf95-3b9e51933218" />

What Should Happen?

Model selection should appear

Error Messages/Logs

Steps to Reproduce

1. Launch Claude Code
2. Type /model

Actual result:
"Loading models..." is displayed and hangs up

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.1 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

After several attempts to start Claude Code, I managed to get models list. But it lists "Sonnet 4.5" only, I don't have access to "Opus 1". As a customer I don't get service to Opus model and can't use it all. Critical issue! Anthropic does not provide service that should be according to the contract agreement.

<img width="694" height="307" alt="Image" src="https://github.com/user-attachments/assets/56cab3f3-b4e1-4c96-93db-dd3dd737f1d9" />