Cursor vs Google AI Studio vs Antigravity IDE: Which AI Coding Tool Wins in 2026?
Testing Google AI Studio, Antigravity IDE, and why I keep coming back to the same answer
Updated March 2026. Original published December 2025. Three months later, the landscape looks different.
Hey there!
So I’ve been on this journey lately... testing out different AI development tools. And when I say testing, I mean REALLY diving in and building actual things with them. Not just playing around for a few minutes and calling it a review.
This isn’t about those vibe coding platforms like Replit or Lovable (though I built a Shopify store with Lovable recently and that was wild). This is about the tools that sit somewhere in the middle - the ones that help you actually CODE but with serious AI assistance behind the scenes.
What Changed Since December 2025
The AI coding tool landscape moved fast. Here is the short version before we dig in:
Cursor shipped Automations, Cloud Agents, JetBrains support, and Composer 1.5
Google AI Studio added Gemini 3 and Gemini 3.1 Flash-Lite support
Antigravity IDE went from closed beta to free public preview with agent-first architecture
Claude Code CLI emerged as a major player (voice mode, subagents, and 1/6th the cost)
Windsurf, Augment Code, Replit Agent 3, and GitHub Copilot Workspace GA all entered the picture
Let me walk you through each one.
The Three Contenders
I ended up trying three different tools over the past few weeks:
Cursor - the one everyone’s talking about
Google AI Studio - surprisingly capable and underrated
Google Antigravity IDE - Google’s answer to Cursor
Let me walk you through what I found with each one...
Google AI Studio: The Underrated Champion
I’m going to start here because Google AI Studio genuinely surprised me.
I stumbled into it because I wanted to try Gemini 3 Pro for app creation. And honestly? It’s REALLY good at one-shotting apps. I’m talking about giving it one solid prompt and getting back something that actually works - not just a mock-up, but a functional app with nice visuals that you can immediately interact with.
What makes it interesting:
Gemini 3 Pro is legitimately impressive for development work
You can build, test, AND deploy all in one place (no need to spin up separate infrastructure)
GitHub integration is built right in
You can make apps public immediately
File downloads work seamlessly
It’s incredibly cost-effective
The catch? It’s not as flexible when you need to do more complex stuff or switch between different AI models. Google defaults to Gemini (which makes sense for them), but sometimes you want GPT or Claude for specific tasks.
Still, if you have a clear idea and want to prototype something FAST without worrying about deployment... Google AI Studio is absolutely worth your time. It’s underrepresented in all the “best AI coding tools” lists, and that’s a shame.
March 2026 update: Gemini 3 Flash and Pro reached general availability. Gemini 3.1 Flash-Lite is in preview. The UI got reorganized and separated from Google Cloud. AI Pro subscription is $19.99/month. For quick prototyping and multimodal tasks, AI Studio remains the best free option. For serious development work, it still does not match dedicated IDEs.
Google Antigravity IDE: The Plot Twist
March 2026 update: This is where I was most wrong in December. I called Antigravity “the ‘Almost There’” tool. In three months, it changed significantly.
Antigravity announced public preview in November 2025. By March 2026, it is free for individual developers and architecturally different from everything else.
The big shift: agent-first architecture. Two views. Editor View works like VS Code. Manager View orchestrates multiple agents across your codebase simultaneously. The agents operate across editor, terminal, and browser. They verify their own artifacts. They handle multi-file cascading edits.
Model support expanded: Gemini 3 Pro, Claude Sonnet 4.5, and OpenAI GPT-OSS.
On benchmarks, Antigravity scored 0.69+. Top 3, alongside Cursor and Kiro IDE.
But I need to be honest about the downsides. February 2026 saw real stability problems. Context memory errors. Version compatibility bugs. The ambition is there. The reliability is not fully there yet.
Cursor: Why I Keep Coming Back
And this brings me back to Cursor.
Here’s the thing - I’d used Cursor before, maybe 8-10 months ago. It was good then. But when I came back to it recently? Holy hell, it’s TRANSFORMED.
The big changes:
Cursor 2.0 introduced a whole new agents tab with seriously helpful features
It’s way more agent-based than it used to be - you can actually delegate entire coding tasks
You can choose your model (I’m using Claude 4.5 Opus for most development work)
The layout is flexible - switch between editor mode and agent mode depending on what you need
Built on VS Code, so it’s immediately familiar if you’ve used VS Code
What I really appreciate: Sometimes you just need to code something manually because it’s FASTER than explaining it to an AI. Cursor gets this. It gives you the flexibility to jump between “I’ll do this myself” and “AI, handle this for me.”
Example: I wanted to switch the AI model in an app from Gemini to GPT. If you know where to look in the code, it’s literally a few seconds. But if you ask an AI agent to do it? Sometimes it gets confused, starts checking docs, second-guesses itself... and suddenly what should take 5 seconds takes 2 minutes.
Cursor gives you both options. You’re not FORCED into an agent-only workflow.
March 2026 update: Cursor shipped four major features since this post. Automations trigger from Slack, Linear, and GitHub events (auto-fix failing CI, respond to issues). Cloud Agents run in isolated VMs and produce merge-ready pull requests. JetBrains IDE support means IntelliJ, PyCharm, and WebStorm users can access Cursor’s AI layer. Composer 1.5 + Subagents made multi-file edits more reliable.
Pricing stayed the same: Free tier, Pro at $20/month, Pro+ at $60/month, Ultra at $200/month.
On the 2026 full-stack coding benchmarks, Cursor paired with Claude Opus 4.6 scored 0.751, the highest of any tool tested. But the cost per benchmark task was $27.90. That matters if you are evaluating alternatives.
The Real Workflow Insight
Here’s something I learned that nobody really talks about: knowing how to code still matters, even with AI tools.
Not because you need to write everything from scratch. But because understanding code lets you make judgment calls about when to use the AI and when to just... fix it yourself.
The best workflow I’ve found is switching between modes:
Let AI handle the heavy lifting (new features, boilerplate, structure)
Jump in manually for quick fixes and tweaks
Use AI again for testing and refactoring
This is why Cursor works so well for me. It’s built for this hybrid approach.
(Side note: I also found this great “Building with Cursor“ tutorial on Notion that’s super helpful for new users. Six easy steps with videos. Worth checking out if you’re just getting started.)
Tools Are Getting Wild... and That’s Exciting
The pace of change here is INSANE. Like, genuinely wild.
I was using Cursor less than a year ago and it felt like a smart code editor. Now it feels like having a junior developer pair-programming with me. That’s a massive leap in a short time.
Google is clearly investing heavily in this space too - both AI Studio and Antigravity show they’re serious about competing. And honestly, that competition is GREAT for us developers because it means these tools will keep getting better and cheaper.
Speaking of tools getting more powerful... if you haven’t checked out what you can do with Claude’s Model Context Protocol, that’s another rabbit hole worth exploring. Giving AI assistants “hands” to interact with your actual systems changes everything.
The New Players: What Arrived Since December
Claude Code CLI
This was not in my original article because it did not exist as a serious option in December 2025. By March 2026, I use it daily alongside Cursor.
Claude Code is a terminal-based coding agent. No IDE. No UI. You give it a prompt, it reads your codebase, edits files, runs tests, and handles multi-step tasks autonomously.
The benchmark score is 0.68+. About 10% lower than Cursor. But the cost per task is $1.60 to $4.00. Compare that to Cursor’s $27.90 per benchmark task. 7 to 17 times cheaper for similar quality.
I wrote extensively about this in Claude Code vs. Codex: Real Usage After 2 Months and How I Structure CLAUDE.md After 1000+ Sessions. The short version: Claude Code is not a replacement for an IDE. It is a force multiplier that handles the tedious 80% while you focus on architecture decisions.
For a deeper dive, my Claude Code Workshop ($29) covers 15 chapters from setup to multi-agent patterns.
Windsurf (formerly Codeium)
Codeium rebranded to Windsurf and shipped Cascade, an agentic coding system. Pro is $15/month. Positioned between autocomplete tools and full agent IDEs. Good for speed. Less ambitious than Cursor or Antigravity on autonomous capabilities.
Augment Code
Enterprise-focused. Semantic dependency analysis across 400,000+ files and cross-repo relationship mapping. If you work in a large monorepo, Augment understands how your services connect. Overkill for solo developers. Potentially transformative for teams.
GitHub Copilot Workspace (GA)
Exited preview and reached general availability. GPT-5.2 primary model, Claude and Gemini toggles for Enterprise. Mission Control dashboard for agent visibility. $10/month makes it the cheapest option with agent capabilities.
Replit Agent 3
Cloud-native with 200+ minutes of autonomous operation. Trigger from mobile. Best for prototyping and learning. Not the tool for a 50-file refactor.
2026 AI Coding Tool Benchmarks
Tool | Benchmark | Cost/Task | Best For | Weakness
Cursor + Opus 4.6 | 0.751 | $27.90 | Polish, team workflows | Expensive per task
Antigravity | 0.69+ | Free | Agent-first ambition | Stability issues
Claude Code CLI | 0.68+ | $1.60–4 | Cost efficiency, automation | No GUI, terminal only
Copilot Workspace | ~0.65 | $10/mo flat | GitHub integration | Less autonomous
Windsurf | ~0.63 | $15/mo flat | Speed, familiarity | Less ambitious scope
Google AI Studio | N/A | Free/$19.99 | Prototyping, multimodal | Not a real IDE
Where I Landed (March 2026)
Three months ago I would have said “just use Cursor.” Now the answer depends on what you optimize for.
If you optimize for quality and can afford it: Cursor + Claude Opus 4.6
If you optimize for cost: Claude Code CLI does 90% of the work at 1/7th the price
If you want the future now (with bugs): Antigravity’s agent-first architecture
If you want the safest bet: GitHub Copilot Workspace at $10/month
I use both Cursor and Claude Code daily. Cursor for visual editing and refactoring. Claude Code for automation, batch operations, and overnight tasks that run while I sleep.
I tried Antigravity for a week in February. The agent orchestration is genuinely innovative. I hit three context memory errors in five days and went back to Cursor. I will try again next quarter.
The total cost is about $400/month. That sounds like a lot until you see the output. My AI agent handles tasks that would take 8-10 hours manually, often overnight while I sleep.
Tools are still getting wilder. But now there is real data to compare them.
PS. How do you rate today’s email? Leave a comment or “❤️” if you liked the article - I always value your comments and insights, and it also gives me a better position in the Substack network.
This post was originally published in December 2025. Updated March 2026 with new benchmarks, pricing, competitor analysis, and three months of hands-on experience.
If you want to go deeper on Claude Code specifically, the Claude Code Workshop covers everything from CLAUDE.md architecture to multi-agent orchestration. 15 chapters, $29.