Google Antigravity★

Google Antigravity is Google’s agent-first development platform — the company’s biggest bet on AI-assisted software development. Instead of a single tool, Antigravity is a unified system: a desktop app, a terminal CLI, an IDE, and an SDK, all built around a shared server-side agent harness. In this guide we’ll cover what Antigravity is, who builds it, its components, pricing, and why it matters for the future of Google’s developer tools.

What is Google Antigravity?

Google Antigravity is an agent-first development platform. The core idea: instead of you driving the tools and an AI merely suggesting, an agent harness plans and executes development work across a unified environment. It was officially announced on November 20, 2025 via the Google Developers Blog as “our new agentic development platform,” and the modern versions (Antigravity 2.0 and Antigravity CLI) launched at Google I/O in May 2026.

It’s closed source — unlike the open-source Gemini CLI, Antigravity is Google’s commercial platform product.

Who creates Antigravity?

Antigravity is built by Google, the company behind Gemini, Android, and Google Cloud. It’s part of Google’s push to unify its AI development tools: Gemini CLI, Gemini Code Assist, and Google Cloud’s agent platform are converging around Antigravity as the flagship experience. The enterprise offering runs under the Google Cloud umbrella, giving organizations integration with their existing cloud infrastructure.

The components of Antigravity

Antigravity is best understood as four components sharing one engine:

Antigravity 2.0 (desktop app)

The agent-first desktop application — a full development environment where you work alongside agents on your projects. It provides the shared agent harness that coordinates work across files, tools, and commands.

Antigravity CLI

A Go-based terminal agent, described as faster with the ability to orchestrate multiple agents asynchronously. This is the direct successor to Gemini CLI for terminal users.

Antigravity IDE

A full integrated development environment built on the Antigravity harness, bringing the agentic experience into a complete editor.

Antigravity SDK

A software development kit for building and customizing agents on top of the Antigravity platform — for teams that want their own agent experiences powered by the same infrastructure.

These four pieces share Agent Skills, Hooks, Subagents, and Extensions (plugins), giving you a consistent set of capabilities across desktop, terminal, and IDE.

The Gemini CLI transition

Antigravity is the designated successor to Gemini CLI. On June 18, 2026:

• Gemini CLI stops serving Google AI Pro/Ultra subscribers and free Gemini Code Assist individual users.
• These users move to Antigravity CLI and Antigravity 2.0.
• Enterprise customers using Gemini Code Assist Standard/Enterprise and Google Cloud keep Gemini CLI access.

If you were a Gemini CLI consumer, Antigravity is where Google is taking you.

Key features of Google Antigravity

• Unified agent harness — one engine shared across desktop, CLI, IDE, and SDK.
• Agent-first desktop app — Antigravity 2.0, a full development environment.
• Fast Go-based CLI — with asynchronous multi-agent orchestration.
• Antigravity IDE — a complete agentic editor.
• Antigravity SDK — build your own agents on the platform.
• Agent Skills, Hooks, Subagents, Extensions — the standard agentic extension model.
• Multi-agent orchestration — run several agents on a task.
• Model breadth — Gemini 3.5 Flash, Gemini 3.1 Pro, Gemini 3 Flash, Claude Sonnet & Opus, and gpt-oss.

Pricing: what does Antigravity cost?

Antigravity’s pricing (from Google’s official pricing page) has three tiers:

• Individual (free, $0/month) — access to Gemini 3.5 Flash, Gemini 3.1 Pro, Gemini 3 Flash, Claude Sonnet & Opus 4.6, and gpt-oss-120b; unlimited Tab completions and Command requests; basic weekly rate limits.
• Google AI Pro / Google AI Ultra — add more generous rate limits and a flexible AI credit pool.
• Organization (via Google Cloud) — consumption-based API pricing with GCP integration, for teams and enterprises.

The free Individual plan is notably generous — you get access to frontier models at no cost, with rate limits as the constraint.

Integrations

• Google Cloud — project integration and consumption-based billing for organizations.
• Gemini models — the core model family.
• Third-party models — Claude (Sonnet & Opus) and gpt-oss through the platform.
• Antigravity SDK — programmatic access for building agents.
• GitHub — repository workflows.
• Gemini CLI ecosystem — shared backend and unification path.

Who is Antigravity for?

Antigravity is aimed at developers who want Google’s full agent-first development experience. It’s a strong fit for:

• Individual developers who want a generous free agentic platform.
• Google ecosystem users coming from Gemini CLI and Gemini Code Assist.
• Teams and enterprises already on Google Cloud who want consumption-based agentic development.
• Organizations wanting the Antigravity SDK to build custom agent experiences.

If you’re invested in Google’s developer ecosystem, Antigravity is the clear path forward.

Advantages of Google Antigravity

• Unified platform — desktop, CLI, IDE, and SDK in one system.
• Generous free tier — frontier models at $0/month.
• Google-backed — enterprise support via Google Cloud.
• Model breadth — Gemini, Claude, and gpt-oss in one harness.
• Successor to Gemini CLI — clear migration path for Google ecosystem users.
• SDK for custom agents — build your own on the platform.

Limitations and honest considerations

• Closed source — unlike Gemini CLI, you can’t inspect or fork it.
• Google-ecosystem lock-in — designed around Google Cloud and Gemini infrastructure.
• New platform — evolving quickly; expect changes as it matures.
• Rate limits — the free tier is limited; heavy use needs paid plans.

Security and privacy

Antigravity is a commercial Google platform. The enterprise offering runs under the Google Cloud terms of service, bringing Google’s enterprise security and compliance infrastructure. As with any cloud-based agent, your code and prompts are processed by Google’s infrastructure — review Google’s data handling policies, especially for sensitive work. For organizations, Google Cloud provides the standard enterprise controls (access management, audit, compliance).

Getting started with Google Antigravity

1. Visit antigravity.google — get the Antigravity 2.0 desktop app or the CLI.
2. Sign in with Google — the free Individual plan is available immediately.
3. Open a project — start working with the agent harness in the desktop app or terminal.
4. Try a task — ask it to build or fix something and approve the agent’s steps.
5. Scale up — move to Google AI Pro/Ultra or Google Cloud for higher limits and team features.

The bottom line

Google Antigravity represents Google’s agent-first vision for development: one unified platform spanning desktop, terminal, IDE, and SDK, powered by a shared agent harness and a broad model lineup. With a genuinely generous free tier, enterprise support through Google Cloud, and the Gemini CLI transition behind it, it’s the platform Google ecosystem developers should be watching — and trying.

If you use Gemini CLI, Antigravity is your upgrade path. If you’re new to agentic development on Google’s stack, the free Individual plan is an easy place to start.

To discover more developer tools and AI agents, browse our Developer Tools and AI Tools categories, or explore the full bla5k directory.

Official resource: the Google Antigravity website.