Antigravity

Antigravity is the internal procedural framework Google's AI agent, Gemini Spark, follows when it actually gets work done. Think of it like the operations manual a new employee gets at a company. The manual itself is invisible, but it's what keeps the employee's workflow consistent — receive instructions → gather information → execute → report results.

When the brain, Gemini 3.5, makes a decision, Antigravity is the bridge that turns that decision into concrete actions like checking Gmail, drafting a document, or visiting a website. No matter how smart the brain is, without a framework to actually move the hands and feet and chain together multiple steps, it would just spit out an answer and stop there. Antigravity is the backend mechanism that coordinates those hands and feet.

Users rarely see the name "Antigravity" directly. On screen, all that appears is the result — Gemini Spark checking a credit card statement or organizing meeting notes — while behind the scenes, the invisible framework running each step in order is Antigravity.

The article explains that it "uses the Antigravity harness on top of Gemini 3.5." It's important not to confuse Antigravity with a separate AI model used by Gemini Spark — it's actually the internal execution framework that chains the existing brain's (Gemini 3.5) decisions into concrete steps.