Copilot can't remember last time used model in OpenRouter

[owenzhao]

Describe the bug

Every time Copilot restarts, it loses the last time chosen model of OpenRouter and use GPT-5 mini as default.

Versions

• Copilot for Xcode: 0.44.148
• Xcode: 26.0.1
• macOS: 26.0.1

Steps to reproduce
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Screenshots

Logs

Additional context