Google Antigravity Review: Free AI IDE vs Cursor vs Claude Code (2026)
Hands-on review of Google Antigravity IDE. Benchmarks, pricing, and honest comparison with Cursor and Claude Code for developers in 2026.
TL;DR — How Does Google Antigravity Stack Up?
| Google Antigravity | Cursor | Claude Code | |
|---|---|---|---|
| Type | Agent-first IDE (VS Code fork) | AI-powered IDE (VS Code fork) | Terminal-based CLI agent |
| Primary Model | Gemini 3.1 Pro | Composer 2 (proprietary) + multi-model | Claude Opus 4.6 / Sonnet 4.6 |
| Free Tier | Yes (generous, weekly limits) | Yes (50 slow requests/mo) | No (Pro $20/mo minimum) |
| Paid Plans | Pro $20/mo, Ultra $250/mo | Pro $20/mo, Ultra $200/mo | Pro $20/mo, Max $100/mo |
| SWE-bench Verified | 76.2% | Not published (model-dependent) | ~72–80.8% (model-dependent) |
| Multi-Agent | Yes (5 parallel agents) | Yes (Agents Window) | No (single agent) |
| Context Window | 2M tokens | ~200K (model-dependent) | ~200K (model-dependent) |
| MCP Support | No | Yes (marketplace) | Yes (deep integration) |
| Stability | Early-stage, some bugs | Mature, production-ready | Mature, production-ready |
What Is Google Antigravity?
Google Antigravity is an agent-first IDE announced on November 18, 2025, alongside the launch of Gemini 3. It is a heavily modified fork of Visual Studio Code — built by the team Google acquired from Windsurf (formerly Codeium) for $2.4 billion in July 2025. That team, led by CEO Varun Mohan, shipped Antigravity in roughly four months.
The core idea: instead of you writing code and occasionally asking AI for help, you become a task manager. You define what needs to happen, and AI agents plan the steps, write the code, run the terminal, open a browser, validate outputs, and leave behind verifiable artifacts showing exactly what they changed.
It is currently in public preview, free for individuals, and available on macOS, Windows, and Linux.
How the Manager View Actually Works
Antigravity introduces two interfaces that define the product:
Editor View — the familiar coding experience. Tab completions, inline AI commands, sidebar chat. If you have used Cursor or Windsurf, this feels natural. The completions are powered by Gemini 3 Flash and are fast. Manager View — this is the differentiator. You can spawn up to five agents working in parallel, each handling a separate task across isolated workspaces. One agent scaffolds a feature, another writes tests, a third handles database migrations. You observe their progress, review artifacts, and leave feedback directly on their work — similar to commenting on a Google Doc.The platform offers four operating modes:
- Agent-Driven — full autonomy, no interruptions
- Agent-Assisted — agents pause at checkpoints for your review (recommended)
- Review-Driven — you approve every step
- Custom — mix modes by task type
What Are Artifacts?
Every agent generates Artifacts — implementation plans, task lists, annotated code diffs, screenshots, and browser recordings. Instead of scrolling through terminal logs to figure out what an agent did, you get a structured deliverable.
The feedback loop is the best part: you comment on an artifact, and the agent incorporates your input without restarting the entire conversation. Agents also maintain a persistent Knowledge Base that learns your code patterns, naming conventions, and preferences over time.
This matters for teams. Artifacts create an auditable trail of what changed and why, which is valuable for code review and compliance.
Benchmarks — Does It Actually Perform?
Here is what we know from published numbers:
| Benchmark | Antigravity | Cursor 3 | Claude Code (Opus 4.6) |
|---|---|---|---|
| SWE-bench Verified | 76.2% | N/A (model-dependent) | 80.8% |
| Terminal-Bench 2.0 | 54.2% | Top-3 placement | 65.4% |
| WebDev Arena Elo | 1487 | Not ranked | Not ranked |
| Next.js + Supabase feature build | 42 seconds | 68 seconds | N/A |
A few honest observations:
SWE-bench 76.2% is strong but not leading. Claude Opus 4.6 via Claude Code hits 80.8%. Antigravity's score trails by about 5 points. That said, SWE-bench measures the model as much as the tool. Antigravity's score reflects Gemini 3.1 Pro's capability, and you can switch to Claude Opus 4.6 within Antigravity itself. Speed is a real advantage. The 42-second feature build vs 68 seconds for Cursor is meaningful over a full day of development. The 2M token context window means Antigravity can hold an entire large codebase in memory — no chunking, no retrieval hacks. Terminal-Bench is weaker. At 54.2%, Antigravity trails Claude Code significantly. If your workflow is terminal-heavy (running tests, git operations, CI debugging), Claude Code is still the better agent.Pricing — Is "Free" Actually Free?
This is where it gets complicated.
Antigravity launched with genuinely generous free limits. But demand has been high, and Google has been tightening the screws through early 2026:
| Tier | Monthly Cost | What You Get |
|---|---|---|
| Free | $0 | Gemini 3.1 Pro with weekly rate limits, unlimited tab completions |
| Pro (Google AI Pro) | $20/mo | Higher rate limits, 5-hour refresh cycles |
| Ultra (Google AI Ultra) | $250/mo | Highest limits, priority access |
| Credits | $25 / 2,500 credits | Top-up when you hit limits |
The fine print: free tier users report hitting limits within 2–3 hours of intensive coding. Google uses a "work done" metric rather than simple request counts, so complex reasoning tasks burn quota faster than quick completions. In March 2026, multiple Pro subscribers reported 7-day lockouts instead of the advertised 5-hour refresh, which triggered community backlash.
Compared to Cursor: Cursor Pro at $20/month gives you a $20 credit pool that depletes based on model usage. Heavy users regularly hit limits too, but the system is more predictable. Compared to Claude Code: The Pro plan at $20/month is straightforward, but serious users typically need Max at $100/month. API access runs $3/$15 per million input/output tokens for Sonnet 4.6, which adds up fast on large codebases.The real comparison: Antigravity's free tier includes Claude Opus 4.6 access. Getting Opus-level output for $0 is a remarkable deal — if you can tolerate the rate limits.
What Antigravity Gets Wrong
No point sugarcoating it. After several weeks with the tool, these are the real problems:
No MCP support. This is the biggest gap. Cursor has a mature marketplace of MCP integrations — Figma, Linear, Amplitude, databases. Claude Code has deep MCP support for connecting to external tools. Antigravity has none. If your workflow depends on integrating AI with other services, this is a dealbreaker today. Stability issues. Context memory errors, agents terminating mid-task, and version compatibility bugs are common in early 2026. This is a public preview, and it shows. You would not want to rely on Antigravity for production-critical work yet. Cloud-only processing. All code is processed on Google's servers. If your company has data residency requirements or handles sensitive code, this may disqualify Antigravity entirely. Cursor processes locally. Claude Code runs in your terminal. Legacy codebase struggles. Agents assume standard libraries and modern patterns. Custom frameworks, unusual naming conventions, or legacy code without documentation can confuse agents badly. Supervision is non-negotiable for anything complex. Rate limit unpredictability. The "work done" metric is opaque. You cannot easily estimate how long your quota will last for a given task, which makes planning difficult.Who Should Use What?
Choose Google Antigravity if:- You want to try agent-first development at zero cost
- You work in the Google ecosystem (Firebase, Cloud Run, Gemini API)
- You like the Manager View for parallel multi-agent workflows
- You need a 2M token context window for large codebase questions
- You want access to Opus-level models without paying $100+/month
- You need a mature, stable daily coding environment
- You rely on MCP integrations and VS Code extensions
- You want the best tab completions and inline editing
- You are on a team with existing
.cursorrulesconfigurations - Predictable billing matters to you
- You prefer terminal-first workflows
- You work on complex, multi-step refactoring tasks
- You want the highest SWE-bench accuracy (Opus 4.6)
- You need deep MCP integration
- You value editor-agnostic tool that works with any IDE or no IDE
Frequently Asked Questions
Is Google Antigravity really free?
Yes, the public preview is free for individuals with weekly rate limits on Gemini 3.1 Pro and access to Claude Opus 4.6. Heavy users will hit limits in 2–3 hours of intensive work. Paid tiers (Pro at $20/month, Ultra at $250/month) offer higher limits.
Is Antigravity better than Cursor?
Not yet for daily coding. Cursor is more stable, has a mature extension ecosystem, and better MCP support. Antigravity's Manager View for multi-agent workflows is genuinely novel, but the overall polish is not at Cursor's level. Antigravity is better if you want parallel agents and free Opus access.
Can Antigravity replace Claude Code?
For a different audience, potentially. Antigravity is a visual IDE; Claude Code is terminal-first. Claude Code scores higher on SWE-bench (80.8% vs 76.2%) and Terminal-Bench (65.4% vs 54.2%). Developers who live in the terminal will find Claude Code more natural.
Does Antigravity support Claude and GPT models?
Yes. Antigravity supports Gemini 3.1 Pro (primary), Claude Sonnet 4.6, Claude Opus 4.6, and GPT-OSS-120B. You can assign different models to different agents — for example, Opus for architecture planning and Flash for quick implementations.
Is Antigravity a VS Code fork?
Yes, it is a heavily modified fork of VS Code, derived from the Windsurf codebase that Google acquired for $2.4 billion. It adds the Manager View, Artifacts system, and deep Gemini integration on top of the VS Code foundation.
Will Antigravity stay free?
Google has said a paid subscription model is coming. The current free tier is a preview strategy to build the user base. Expect usage-based or tiered pricing to formalize later in 2026, with a meaningful free tier likely remaining.
The Bigger Picture
The AI IDE market in 2026 is a three-way race: Cursor (the incumbent, now at $1B+ ARR), Claude Code (the terminal-native agent), and Google Antigravity (the well-funded newcomer offering premium models for free).
Google's strategy is clear — subsidize AI coding to drive developers into the Google Cloud and Gemini ecosystem, the same playbook they ran with Android and Chrome. Whether that means Antigravity stays free long-term is an open question, but the short-term value is real.
For developers, competition is great. Antigravity forced Cursor to accelerate its multi-agent features and pushed Anthropic to make Claude Code more accessible. The tools will keep getting better.
If you are a developer, try all three. They serve different workflows and complement each other.
If you are a founder or product builder who does not code — these tools are powerful but still require engineering judgment. The gap between "AI can write code" and "I have a shipped product making money" is still wide: deployment, SEO, analytics, growth, iteration. That is where platforms like Y Build come in — AI agents that handle the full journey from idea to live product, without needing you to manage an IDE at all. Sometimes the best development tool is the one you never have to open.
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