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Side-by-side comparison · Coding & Dev Tools

Google Antigravity vs OpenCode vs Zed

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Google Antigravity

3.9

From $19.99/mo

OpenCode

3.8

From Pay as you go

Best overall

Zed

4.3

From $10/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Google AI Pro subscribers, and anyone who wants to try handing coding work to AI agents for free.

Pick it if: Developers and tinkerers who want a capable coding agent without a big subscription, or who want to choose their own models.

Zed4.3
Best overall

Pick it if: Developers who want a fast editor and already pay for Claude or another AI provider.

Overview

AttributeGoogle AntigravityOpenCodeZed
In one lineGoogle's free coding app. You hand tasks to AI agents and review what they produce.A free, open-source coding agent that works with almost any AI model, including free ones.A fast, free, open-source code editor that runs Claude Code and other AI agents inside it.
Pricing modelFreemiumOpen sourceOpen source
Starting price$19.99/moPay as you go$10/mo
Free plan Yes Yes Yes
Works with Claude Code No Yes Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeGoogle AntigravityOpenCodeZed
Overall rating3.93.84.3Winner
Ease of useHow quickly someone non-technical gets value from it.
3.5
3.0
3.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.0
4.5
4.0
Output qualityHow good the results are before you fix them.
4.0
3.5
4.0
Value for moneyWhat you get for the price, including the free plan.
4.5
5.0
5.0
Speed & reliabilityHow fast it is and how often it falls over.
3.5
3.0
5.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeGoogle AntigravityOpenCodeZed
Access & platform
Free plan Yes Yes Yes
Mobile app No No No
Desktop app Yes Yes Yes
Browser extension Yes No No
API access Yes Yes–
Teams & business
Team workspace Yes No Yes
Enterprise plan or SSO Yes Yes No
Connects to other apps Yes Yes Yes
Open source or self-hosted No Yes Yes
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images Yes No No
Makes video No No No
Writes code Yes Yes Yes
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes– Yes
Works in many languages Yes Yes Yes
Capabilities score14/ 1711/ 1711/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeGoogle AntigravityOpenCodeZed
Plans

IndividualOur pick

Free

Trying agent-based coding without paying.

OpenCode

Free

Anyone with their own model access, or happy with the free models.

PersonalOur pick

Free

Almost everyone.

Google AI Pro

$19.99/mo

People who already have or want the Google AI Pro bundle.

Zen

Pay as you go, from a $20 top-up

People who want top models without a subscription.

Pro

$10/mo

People who want Zed's hosted AI without managing keys.

Google AI Ultra

From $99.99/mo

Developers who want Antigravity as a daily driver.

GoOur pick

$10/mo

Most people who want to code daily on a budget.

Business

$30/seat/mo

Teams that need spending and access controls.

Business (via Google Cloud)

From $30/seat/mo

Companies already on Google Cloud.

Go Plus

$40/mo

Heavy users who hit the Go limits.

Enterprise

Custom

Companies rolling it out to a team.

Which plan to pickStart on the free Individual tier; it is the whole point. If you hit the weekly limits and you also use Gemini for other things, Google AI Pro at $19.99 is a sensible step. Ultra only makes sense for full-time developers.Start free. If the free models feel thin, OpenCode Go at $10 a month is the best-value upgrade in this category. Only add Zen or a Claude or OpenAI API key when you need a frontier model for a hard job, and set a spending cap when you do.Personal. If you have Claude Pro, run Claude Code inside Zed and you are done. Pro only makes sense if you want Zed's built-in assistant and edit predictions without setting up API keys.

Key features

AttributeGoogle AntigravityOpenCodeZed
Standout features
  • Agent manager
  • Artifacts you can check
  • Full editor and CLI
  • Browser agent
  • Gemini models
  • Agent kit
  • Any model
  • Free models included
  • Terminal, desktop and editor
  • Background agents
  • Go and Zen model plans
  • Plugins and SDK
  • Built for speed
  • External agents inside the editor
  • Bring your own keys
  • Edit predictions
  • Real-time collaboration
  • Open source

Pros and cons

AttributeGoogle AntigravityOpenCodeZed
Pros
  • Free tier is good enough for real projects
  • Agent manager and verification artifacts make reviewing AI work easier
  • Browser agent tests your app, not just the code
  • Included with Google AI Pro, which many people already pay for
  • Free and open source, with free models to start
  • Works with almost any model, including local ones
  • OpenCode Go at $10 a month is very cheap for real daily use
  • Polished terminal and desktop app that many prefer to Claude Code's
  • Fast-moving project with a huge community
  • Noticeably faster than VS Code and Cursor
  • Free, open source, and no charge for running your own agents
  • Clean agent panel that shows exactly what changed
  • Built-in real-time collaboration
Cons
  • Free limits have been cut before and could change again
  • Capacity errors at busy times on the free tier
  • Tied to Gemini models, so you cannot bring Claude or OpenAI
  • The product has been renamed and reorganised more than once this year
  • October 2026 Console breach exposed some saved API keys, and users reported surprise provider charges
  • Version 2.0 briefly stopped asking permission before file edits, and broke older plugins
  • Claude Pro and Max subscriptions can't be used, so Claude needs a paid API key
  • Free models get blocked on some networks for abuse, and limits shift with promotions
  • Terminal-first, so less friendly for non-developers
  • Smaller extension library than VS Code or Cursor
  • Less hand-holding for beginners; it assumes you know your way around an editor
  • Business plan has no SSO yet, which rules it out for some companies
  • Its own hosted AI is basic compared with the agents you can bring

Who each one is for

AttributeGoogle AntigravityOpenCodeZed
Best for
  • Trying AI coding agents for free
  • Running several agents at once
  • Building with Gemini
  • Google AI Pro subscribers
  • Coding with free or low-cost models
  • Using any AI provider, including local models
  • A Claude Code-style agent without a subscription
  • Developers who like to customise their tools
  • Running Claude Code inside an editor
  • Speed on big projects
  • Using your own AI subscription
  • Pairing with teammates in real time
You'll find it used by
  • Google AI Pro subscribers
  • Developers
  • Students
  • Startups on Google Cloud
  • Developers
  • Open-source fans
  • Students
  • Budget-conscious founders
  • Developers
  • Claude Code users
  • Open source fans
  • Small teams

Questions people ask

Which is better, Google Antigravity, OpenCode or Zed?

Zed scores highest overall in our ratings (Google Antigravity 3.9/5, OpenCode 3.8/5 and Zed 4.3/5). Google Antigravity is best for Trying AI coding agents for free and running several agents at once. OpenCode is best for coding with free or low-cost models and using any AI provider, including local models. Zed is best for Running Claude Code inside an editor and speed on big projects.

Which is cheaper, Google Antigravity, OpenCode or Zed?

Google Antigravity: There's a free plan, and paid plans start at $19.99/mo. OpenCode: There's a free plan, and paid plans start at Pay as you go. Zed: There's a free plan, and paid plans start at $10/mo.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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