Codemode and MCP support lets models run JavaScript in a sandbox that calls tools in parallel, with MCP servers managed through configuration files or commands. Sign in with ChatGPT allows you to use your ChatGPT subscription with the OpenAI provider via /login openai. Virtual models let extensions route each request to different physical models based on classifiers or custom logic. Pi now includes a system theme that derives colors from your terminal, supports image generation across providers, and adds GPT-6.1 Sol as the default OpenAI model.