GitHub Copilot has added OpenAI’s GPT-5.4 coding model, bringing improvements to reasoning and multi step development tasks.

Install the extension. After you install the extension, the should appear in the VS Code Activity bar (left side set of icons). When you click the Espressif icon, you can see a list of basic commands ...

Use GitHub Copilot, Gemini, Ollama & any VS Code AI — like any other API. One extension. Zero API keys. Auto-discovers every model. Works with LangChain, Cursor, Aider, and 50+ tools.

GitHub Copilot CLI is now generally available for all paid Copilot subscribers, offering agentic workflows, multiple AI model support, and specialized agents for terminal-based development.