Copilot Chat on GitHub Mobile now supports multi-model selection

Copilot Chat on GitHub Mobile now supports the OpenAI o3-mini, Anthropic Claude 3.5 Sonnet, and Google Gemini 2.0 models for free users. Copilot Pro subscribers also have access to the OpenAI o1 model. You can use the model picker in Copilot Chat to choose your favorite models, giving you a customized experience and helping you optimize your workflow wherever you are.