By now, most of us have experimented with AI coding. But while tools like Cursor have mastered the “co-pilot” experience—keeping you in the flow of writing code—Google Antigravity (released late 2025) is trying something different. It is an agentic IDE where your primary job is reviewing “Artifacts” rather than syntax.

One of the killer features is the Browser Integration.

The Browser as a “Feedback Loop”

In Antigravity, the built-in browser isn’t just for documentation; it’s a sandbox for the AI agents. When an agent implements a UI change or a new route, it doesn’t just hope the code works. It can:

• Self-Verify: Open a headless window to check if a component actually renders.
• Visual Debugging: Use DOM inspection to fix styling bugs that text-based models usually struggle with.
• Artifact Generation: It produces browser recordings and screenshots so you can verify the “Mission” was successful without having to manually run the build yourself.

It’s less about “the AI browsing the web” and more about the AI having a way to prove its work to you before you merge.

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The Reality of the Free Tier: Knowing Your Quotas

The biggest change in the 2026 version of Antigravity is the move to Weekly Quotas. Instead of a daily reset that might cut you off mid-task, you now have a larger “bucket” of usage that refreshes weekly.

Here is how those limits are structured for Free Tier users:

Category	Quota Type	Key Detail
Gemini Models	Dedicated per Model	Gemini 3 Pro and Gemini 3 Flash each have their own separate weekly allowance. If you run out of Pro, you can still use Flash for lighter tasks.
Claude Models	Shared Pool	All non-Google models (Claude 3.5/4.5 Sonnet and Opus) share a single combined bucket. High-intensity work with Opus will drain the same quota you use for Sonnet.
Completions	Unlimited	Standard inline tab-completions do not count toward your weekly agent/chat limits.

The Strategy: Staggering Your Usage

Because of this “separate vs. shared” structure, the smartest way to use Antigravity is to stagger your models:

1. Use Gemini 3 Pro for your initial architectural planning and browser-heavy UI tasks.
2. Switch to the Claude pool only when you need a “second opinion” on complex logic or specific refactoring patterns where Anthropic’s reasoning shines.
3. Save Gemini 3 Flash for documentation questions and basic unit test generation to preserve your “Heavy Reasoning” buckets.

Final Verdict

Antigravity isn’t a “Cursor killer”—it’s a different workflow. While Cursor is for when you want to be the pilot, Antigravity is for when you want to be the air traffic controller. Just keep a close eye on your Claude shared pool; if you’re not careful, a single complex feature build on Monday can leave you without Claude access for the rest of the week.