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Side-by-side comparison · Coding & Dev Tools

Google Antigravity vs Vapi 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

Vapi

3.6

From $0.05/min hosting

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.

Vapi3.6

Pick it if: Developers and voice AI agencies building custom phone or in-app voice agents.

Zed4.3
Best overallBest value

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

Overview

AttributeGoogle AntigravityVapiZed
In one lineGoogle's free coding app. You hand tasks to AI agents and review what they produce.Developer platform for building voice AI agents that make and take phone calls.A fast, free, open-source code editor that runs Claude Code and other AI agents inside it.
Pricing modelFreemiumPaidOpen source
Starting price$19.99/mo$0.05/min hosting$10/mo
Free plan Yes No Yes
Works with Claude Code No Yes Yes

Rating breakdown

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

AttributeGoogle AntigravityVapiZed
Overall rating3.93.64.3Winner
Ease of useHow quickly someone non-technical gets value from it.
3.5
2.5
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
4.0
4.0
Value for moneyWhat you get for the price, including the free plan.
4.5
3.5
5.0
Speed & reliabilityHow fast it is and how often it falls over.
3.5
3.5
5.0

Feature comparison

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

AttributeGoogle AntigravityVapiZed
Access & platform
Free plan Yes No Yes
Mobile app No– No
Desktop app Yes– Yes
Browser extension Yes– No
API access Yes Yes–
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes No
Connects to other apps Yes Yes Yes
Open source or self-hosted No No Yes
AI abilities
Works with your files Yes– Yes
Understands images Yes– Yes
Makes images Yes No No
Makes video No No No
Writes code Yes No Yes
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes– Yes
Works in many languages Yes Yes Yes
Capabilities score14/ 176/ 1711/ 17

Pricing

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

AttributeGoogle AntigravityVapiZed
Plans

IndividualOur pick

Free

Trying agent-based coding without paying.

Pay as you goOur pick

$0.05/min hosting, plus provider costs

Developers building and testing.

PersonalOur pick

Free

Almost everyone.

Google AI Pro

$19.99/mo

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

Core

$29/mo plus usage

Builders and early teams going live.

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.

Pro

10% of hosting fee, $999/mo minimum

Teams running voice agents in production at scale.

Business

$30/seat/mo

Teams that need spending and access controls.

Business (via Google Cloud)

From $30/seat/mo

Companies already on Google Cloud.

Premier

Custom

Large organisations.

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.Build on pay as you go, then add Core when you go live and want email support. HIPAA compliance is a separate $2,000-a-month add-on, so check that early if you work in healthcare.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 AntigravityVapiZed
Standout features
  • Agent manager
  • Artifacts you can check
  • Full editor and CLI
  • Browser agent
  • Gemini models
  • Agent kit
  • Bring your own providers
  • Phone and web
  • Tools and actions
  • Workflows
  • Testing and monitoring
  • Developer tools
  • Built for speed
  • External agents inside the editor
  • Bring your own keys
  • Edit predictions
  • Real-time collaboration
  • Open source

Pros and cons

AttributeGoogle AntigravityVapiZed
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
  • Full choice of speech, model, voice and phone providers
  • Strong API, SDKs, CLI and MCP for developers
  • Free to start building
  • Large community and templates
  • 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
  • Real cost per minute is far above the $0.05 headline
  • Needs a developer to get the most out of it
  • Production users report slow support and breaking changes
  • HIPAA is an expensive add-on
  • 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 AntigravityVapiZed
Best for
  • Trying AI coding agents for free
  • Running several agents at once
  • Building with Gemini
  • Google AI Pro subscribers
  • Custom voice agents built by developers
  • Agencies building AI receptionists for clients
  • Adding voice to an app or website
  • Mixing and matching AI and voice providers
  • 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
  • Voice AI agencies
  • Startups
  • Product teams
  • Developers
  • Claude Code users
  • Open source fans
  • Small teams

Questions people ask

Which is better, Google Antigravity, Vapi or Zed?

Zed scores highest overall in our ratings (Google Antigravity 3.9/5, Vapi 3.6/5 and Zed 4.3/5). Google Antigravity is best for Trying AI coding agents for free and running several agents at once. Vapi is best for custom voice agents built by developers and agencies building AI receptionists for clients. Zed is best for Running Claude Code inside an editor and speed on big projects.

Which is cheaper, Google Antigravity, Vapi or Zed?

Google Antigravity: There's a free plan, and paid plans start at $19.99/mo. Vapi: There's no free plan. Paid plans start at $0.05/min hosting. 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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