Karamvir worked on improving the stability of OpenAI reasoning models within the browser-use/browser-use repository, focusing on backend development and robust error handling. During this period, Karamvir addressed a KeyError crash that occurred when removing parameters from model configurations, particularly under edge cases where values like temperature or frequency_penalty were set to None. By replacing unsafe dictionary deletion with Python’s pop method, Karamvir ensured safer key removal and enhanced the reliability of API integration workflows. This targeted fix reduced user-facing errors and demonstrated careful defensive programming, contributing to more maintainable and resilient model parameter management in the codebase.