constant API errors and Opus 4.7 (1M) keeps switching to Opus 4.7 - running on edge

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 keep getting the "API Error: Stream idle timeout - partial response received

Turn failed
Try sending it again"

and at the same time I start the session with Opus 4.7 (1m) and it just switches to regular Opus 4.7

What Should Happen?

it should not give me this API error and definitely when the model is chosen should not switch unless I switch it. This was on the edge browser, I don't seem to be having these issues in Chorme

Error Messages/Logs

API Error: Stream idle timeout - partial response received

Turn failed
Try sending it again

Steps to Reproduce

sending any complex request

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

not sure but before this latest big UI/UX change a few days ago.

Claude Code Version

not sure, I ask and claude just says Opus 4.7

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

_No response_