What changed
Google launched Gemini 3 across the Gemini app, API, and Vertex AI while previewing Antigravity, an agent-first development environment coordinating editor, terminal, and browser work.
Why it matters
The frontier model and its agent workplace arrived together, showing that model capability was being productized through multi-surface execution and artifact review.
What to do
Evaluate Gemini 3 on complete coding and multimodal tasks; in Antigravity, require reviewable artifacts, isolated branches, and browser-action constraints before trusting multi-agent execution.
Caveat
Google's benchmark and productivity claims were vendor-reported, and Antigravity was a public preview with the usual risks of command execution, browser actions, and immature workflow controls.