Google Antigravity
Google's agentic development platform combines a full IDE, Manager Surface, terminal CLI, and SDK so multiple agents can plan, execute, and produce reviewable Artifacts across editor, terminal, and browser.
Why use it
Google Antigravity works well for cross-file implementation, browser verification, background subtasks, and scheduled work in separate worktrees while developers inspect progress and results from one surface.
Where it fits
Find engines, frameworks, code libraries, version control, and production automation.
What to check
The main product is proprietary; the public CLI repository has no explicit license, while only the separate Python SDK is Apache-2.0. Commercial use, production agents, and third-party models are governed by Google, Google Cloud, and provider-specific terms.