What is Antigravity?

Antigravity Track

Module 35

Antigravity Track — Module 35

ThreadCo Goes Autonomous: ShopMate is running well, but the developer is still bottlenecked. Every new feature requires her to write code, run tests, and fix issues manually. She tries Google's Antigravity IDE — and dispatches three agents simultaneously: one writing a new returns API, one fixing a checkout bug, and one updating the test suite. She reviews diffs instead of writing code.

Antigravity is Google's agent-first IDE — a VS Code fork where AI agents are the primary actors, not assistants. Released in public preview in April 2026, it is built for developers who want to delegate entire engineering tasks, not just individual code completions.

Agent-First Architecture

In Antigravity, agents plan, execute, validate, and iterate autonomously. You describe what you want — the agent figures out how. This is fundamentally different from tools like Copilot or Windsurf, where you remain the primary driver.

2M Token Context

Antigravity supports a 2 million token context window — large enough to load an entire 100,000+ line codebase in a single session. Agents can reason across your whole project without losing track of distant dependencies.

Multi-Agent Orchestration

Dispatch multiple agents simultaneously on independent tasks. While one agent fixes a bug, another writes tests, and a third updates documentation. The Manager Surface lets you observe and steer all of them at once.

Browser Integration

Agents can autonomously interact with web applications via a dedicated Chrome extension. They fill forms, click buttons, read DOM state, and take screenshots — closing the loop between code changes and UI validation without your involvement.

Antigravity vs Other AI IDEs

Feature	Antigravity	Windsurf	Cursor	Claude Code (VS Code)
Agent autonomy	Full autonomous	Guided agentic	Guided agentic	Assisted
Multi-agent	Yes — parallel	No	No	No
Context window	2M tokens	Auto-context	200K	200K
Browser control	Yes (Chrome ext.)	No	No	No
Manager Surface	Yes	No	No	No
Maturity	Preview (April 2026)	Production	Production	Production
Pricing	Free preview	Free + Pro	Free + Pro	Claude.ai subscription
Models	Gemini 3 Pro, Claude Sonnet 4.6, GPT-4	Claude, GPT-4, Codeium	Claude, GPT-4	Claude only

The Antigravity Interface

shopmate — Antigravity

Explorer
📁 shopmate/
📄 api/main.py
📄 descriptions.py
📄 returns.py ✦
📁 tests/
📄 test_returns.py ✦
📄 .windsurfrules
📄 requirements.txt
shopmate/returns.py — Agent writing new returns API
from
fastapi import APIRouter, HTTPException
router = APIRouter(prefix="/returns")
✦ Agent writing...
@router.post("/initiate")
async def initiate_return(order_id: str):
"""Process ThreadCo return request."""
Manager Surface
Agent 1 — Running
Writing returns API
Agent 2 — Running
Writing tests
Agent 3 — Done ✓
Fixed checkout bug

Public Preview — Not Production-Ready

Antigravity is in public preview as of April 2026. Expect occasional instability, incomplete features, and breaking changes. It is excellent for experimentation but evaluate carefully before adopting for critical production workflows. Windsurf or Claude Code remain safer choices for enterprise teams today.

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