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Google Antigravity review: the most ambitious AI coding platform, rough at the edges

by VibeTools Editorialupdated June 202610 min read
Google Antigravity — AI code editor cover graphicGOAI CODE EDITORAI PRO $20/MO
Google Developers Blog: Build with Google Antigravity — our new agentic development platform
Google Developers Blog — Antigravity announcement, source: developers.googleblog.com

Independent and tested. Some links are affiliate links — they never change our verdict.

how we evaluated

We tested Google Antigravity 2.0 in June 2026 using the AI Pro plan ($20/mo) on three tasks: (1) a greenfield Next.js app using the desktop agent, (2) a multi-file refactor in an existing TypeScript project using the IDE, and (3) a background task via the CLI to generate a full test suite. We also tracked quota behaviour across a standard 8-hour work day to verify the mid-day wall reports in the community.

key takeaways

  • 4 surfaces: IDE (VS Code fork), desktop agent app, CLI, and Python SDK.
  • Multi-model: Gemini 3.5 Flash (default), Claude Sonnet 4.6, Claude Opus 4.6, GPT-OSS 120B.
  • Multiple agents simultaneously + browser subagent + background task scheduling.
  • Free tier: all models, ~20 agent requests/day — cut 4 times since December 2025.
  • AI Pro $20/mo, AI Ultra $100/mo, AI Ultra Max $200/mo.
  • Antigravity 2.0 (May 2026) broke existing environments at launch — rocky rollout.

4

quota cuts since Dec 2025

$20

AI Pro / month

surfaces: IDE, desktop, CLI, SDK

Google Antigravity review: the most honest version of this is "extraordinary ambition, frustrating execution." No other AI coding platform in 2026 ships four complementary surfaces with multi-model support and multi-agent orchestration in a single product. The architecture Antigravity is building toward is genuinely different from Cursor, Windsurf, or Claude Code — it is not an AI-assisted editor, it is an autonomous agent platform where you set goals and supervise rather than drive.

The catch: the execution has been rough. Four quota cuts without adequate notice, a 2.0 launch in May 2026 that broke existing developer environments, and a CLI that was announced at Google I/O before it was actually available to install. Google has the resources to get this right — but as of June 2026, Antigravity is a platform to watch, not yet one to bet a production workflow on.

The 4 surfaces: what each one is for

Antigravity 2.0 ships four distinct tools under one brand: the IDE (VS Code fork with deep agent integration), the Desktop App (standalone agent command center for orchestrating multiple agents without an editor), the CLI (Go-based terminal UI for background tasks), and the SDK (Python library for building custom agent workflows). Each serves a different use case. Source: Google Developers Blog, Google I/O 2026.

Multi-model: the genuine differentiator

Antigravity is the only major AI coding platform that lets you run Gemini, Claude, and GPT-OSS in the same agent loop — switching models per task or per subagent. In June 2026, the default is Gemini 3.5 Flash (fast and cheap), with Gemini 3.1 Pro, Claude Sonnet 4.6, Claude Opus 4.6, and GPT-OSS 120B available on all paid plans. Free tier also gets all models, rate-limited.

This matters most in the Desktop agent: you can assign "write the Python backend" to Claude Opus (strongest on complex logic), "generate the React UI" to Gemini Flash (fastest), and "review security" to GPT-OSS — running simultaneously, all under one supervision layer. No other tool in the category offers this in mid-2026.

The quota problem: what actually happened

Between December 2025 and March 2026, Google cut Antigravity's usage quotas four times without meaningful advance notice. Pro subscribers went from effectively unlimited access to weekly rate caps that could be exhausted mid-workday. The free tier dropped from 250 agent requests/day at launch to approximately 20 as of June 2026 — an 8× reduction that changed the product significantly.

In our June 2026 testing, we hit the Pro tier weekly cap on the fourth day — a Thursday afternoon — during a sustained agent session on the TypeScript refactor. The cap does not warn you at 80% or even 90% — it cuts off mid-task, leaving the agent in a partial state. This is the sharpest practical problem with Antigravity for production use today, and it mirrors exactly the community complaints.

Google's pattern here is identical to Windsurf/Devin's — a pattern that is becoming common enough in the AI coding tool category that it belongs in every review. Before paying for any AI coding tool, ask: what is the actual usage ceiling, and has it changed? For Antigravity as of June 2026: verify at the official pricing page, and budget for it to change again.

The 2.0 launch: what went wrong

Antigravity 2.0 launched at Google I/O on May 19, 2026. The automatic update broke existing developer environments — local configuration that had been set up for 1.x was not compatible with 2.0's new agent architecture. The CLI was announced in the keynote but was not actually available to install until days after the event. Community forums saw significant backlash in the week post-launch.

By June 2026, the most critical bugs were fixed and the CLI became available. The 2.0 IDE is genuinely better than 1.x on the core agent loop. But the launch set a trust baseline that will take consistent execution to rebuild — especially for teams that lost working environments on a mandatory update.

Antigravity vs the alternatives

AntigravityCursorClaude CodeCodex
SurfacesIDE + Desktop + CLI + SDKEditor onlyTerminal CLI onlyCloud sandbox
ModelsGemini + Claude + GPT-OSSClaude + GPT + ownClaude (Anthropic)GPT-4o, o3, o4
Multi-agentYes — simultaneouslyNoNo (single session)No
Quota riskHigh — 4 cuts in 6 monthsLow — stable since launchMedium — API rate limitsMedium
MaturityNew, rocky 2.0 launchMature, large communityStableMaturing
Price$20/mo AI Pro$20/mo Pro$20/mo Claude Pro$20/mo ChatGPT Pro

Prices as of June 2026 — verify before paying, all of these change.

Verdict

Google Antigravity is the tool to watch in the second half of 2026. The architecture — multi-model, multi-agent, four complementary surfaces — is more ambitious than anything competitors are shipping. If Google executes well on stability and quota consistency, Antigravity 2.x could be the dominant platform in the category by 2027.

As of June 2026, it is not there yet. Four quota cuts, a launch that broke environments, and a CLI that arrived late are trust-breaking patterns. For production teams who need reliability: use Cursor for daily work and watch Antigravity from the sideline. For developers who want to explore the frontier and can tolerate rough edges: the free tier is real, the architecture is impressive, and the experience of running three Claude + Gemini agents simultaneously on a large codebase is unlike anything else available.

try antigravity free

Free tier includes all models (~20 requests/day). No credit card. Best way to test the multi-agent architecture before paying.

Get Google Antigravity →

more stable alternative

If quota reliability matters more than multi-agent ambition — Cursor has been the most stable AI code editor since launch.

Read the Cursor review →

FAQ

What is Google Antigravity?

Google Antigravity is an agent-first development platform launched in November 2025 and updated at Google I/O 2026. Unlike traditional AI editors that assist you while you code, Antigravity is built around autonomous agents — you give it a goal, it decides the steps, runs commands, opens a browser to test, and reports back. It ships four surfaces: an IDE (VS Code fork), a standalone desktop agent app, a CLI, and a Python SDK.

What is the difference between Antigravity 1.0 and 2.0?

Antigravity 1.0 (November 2025) was primarily the IDE — a VS Code fork with agent capabilities. Antigravity 2.0 (May 2026, Google I/O) split the product into four surfaces: the IDE, a new standalone desktop 'agent command center,' a Go-based CLI tool, and a Python SDK for custom workflows. The 2.0 launch also switched the default model from Gemini 3.1 Pro to the faster, cheaper Gemini 3.5 Flash.

Is Google Antigravity free?

Yes. Antigravity has a free tier that includes all models (Gemini, Claude, GPT-OSS) with rate limits — no credit card required. As of June 2026, the free tier gives approximately 20 agent requests per day, reduced from 250 at launch. Google cut the free quota four times between December 2025 and March 2026. AI Pro is $20/month, AI Ultra $100/month. Source: Google I/O 2026.

What models does Google Antigravity use?

As of June 2026, Antigravity supports Gemini 3.5 Flash (default), Gemini 3.1 Pro, Anthropic's Claude Sonnet 4.6 and Opus 4.6, and GPT-OSS 120B. The multi-model support is one of Antigravity's genuine differentiators — no other major AI coding platform lets you mix Gemini, Claude, and GPT in the same agent loop.

What is the quota problem with Google Antigravity?

Between December 2025 and March 2026, Google cut Antigravity's usage quotas four times without meaningful advance notice. Pro subscribers went from effectively unlimited access to weekly rate caps that could be hit mid-workday. The pattern mirrors Windsurf's pricing changes and has generated significant community distrust. Always verify current quotas at the official pricing page before upgrading.

How does Google Antigravity compare to Cursor?

Antigravity is more architecturally ambitious: multiple agents, browser subagent, multi-model, background task scheduling. Cursor is more mature and stable: reliable quotas, large community, refined Composer + Agent workflow. Antigravity wins on vision and model breadth. Cursor wins on reliability and day-to-day developer experience. Many developers who tried Antigravity 2.0 at launch reverted to Cursor due to the rocky launch breaking existing setups.

Compare with Cursor (most stable), Claude Code (deepest context), and OpenAI Codex (async cloud agent). See all in best AI code editors.