GitHub Copilot Cloud Agent gets private sessions and model choice

GitHub has shipped several improvements to Copilot Cloud Agent, the cloud-based coding agent formerly known as Copilot Coding Agent. A key change is that the agent no longer automatically opens a pull request the moment a task starts — instead, users can now work with the agent privately and choose when to open a PR, mirroring how developers work locally. The agents tab on GitHub serves as a central hub for sending tasks and tracking agent activity, and users can now select from multiple models from OpenAI and Anthropic. The video also previews upcoming features including automatic CI/CD fixes and a public API, and demonstrates using `@Copilot` in a PR to fix merge conflicts on demand.