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Google Antigravity vs Kiro

Features, pricing, ratings, and pros and cons, side by side.

Google Antigravity logo

Google Antigravity

Google's agent-first platform for building software with parallel AI coding agents

Freemium
Visit websiteView details

Verdict

Google Antigravity and Kiro are both Coding AI tools. Google Antigravity scores higher in FinderAtlas's editorial review (8.3 vs 8.0 out of 10), led by feature depth and value for money. Both have a free plan or trial. Only Google Antigravity is available on VS Code Extension and JetBrains Plugin and offers an API. Only Kiro is available on Web.

Best overall

Google Antigravity

  • Software Engineers
  • Full-Stack Developers
  • Engineering Teams
  • Enterprise Development Organizations

Choose Google Antigravity if

  • You want a tool built for parallel coding agents, legacy migrations, automated testing, incident triage, prototyping.
  • Free Individual plan with unlimited Tab completions and Command requests.
  • Offers Gemini, Claude and GPT-OSS models in one tool.

Choose Kiro if

  • You want a tool built for turning feature ideas into structured specs and tasks before agents write code in large codebases.
  • Spec-driven workflow produces requirements, design and task lists before code is written.
  • Based on Code OSS, so VS Code settings, themes and Open VSX extensions carry over.
Best for beginners
Google Antigravity
Best for business
Kiro

Features

19 features compared.

  • Antigravity App
    Google Antigravity
    Available
    Kiro
    Not available
  • Antigravity CLI
    Google Antigravity
    Available
    Kiro
    Not available
  • Antigravity IDE
    Google Antigravity
    Available
    Kiro
    Not available
  • Background Subagents
    Google Antigravity
    Available
    Kiro
    Not available
  • Verification Artifacts
    Google Antigravity
    Available
    Kiro
    Not available
  • Multi-Model Support
    Google Antigravity
    Available
    Kiro
    Not available
  • Extensibility
    Google Antigravity
    Available
    Kiro
    Not available
  • Antigravity SDK
    Google Antigravity
    Available
    Kiro
    Not available
  • Security Controls
    Google Antigravity
    Available
    Kiro
    Not available
  • Spec-driven development
    Google Antigravity
    Not available
    Kiro
    Available
  • Agent hooks
    Google Antigravity
    Not available
    Kiro
    Available
  • Steering files
    Google Antigravity
    Not available
    Kiro
    Available
  • Memory
    Google Antigravity
    Not available
    Kiro
    Available
  • Correctness checking
    Google Antigravity
    Not available
    Kiro
    Available
  • Model choice
    Google Antigravity
    Not available
    Kiro
    Available
  • Kiro CLI
    Google Antigravity
    Not available
    Kiro
    Available
  • Kiro Web
    Google Antigravity
    Not available
    Kiro
    Available
  • Local command sandbox
    Google Antigravity
    Not available
    Kiro
    Available
  • Open standards and MCP
    Google Antigravity
    Not available
    Kiro
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Google Antigravity
    Freemium
    Kiro
    Freemium
  • Free plan
    Google Antigravity
    Yes
    Kiro
    Yes
  • Starting price
    Google Antigravity
    $0
    Kiro
    $0
  • Plans
    Google Antigravity
    4 plans
    Kiro
    5 plans

Google Antigravity plans

  • Individual

    $0

    Use Antigravity without a subscription plan

    • Access to a variety of agent models
    • Unlimited Tab completions
    • Unlimited Command requests
    • Basic weekly rate limits

  • Google AI Pro

    Most popular

    $19.99/month

    Higher limits for individual developers

    • Everything in Individual
    • More rate limits
    • Flexible AI credit pool

  • Google AI Ultra

    $99.99/month

    Daily-driver access to the latest Gemini models

    • Everything in Pro
    • Even more rate limits
    • Flexible AI credit pool

  • Business (Google Cloud)

    $30/user/mo

    Organizations on Google Cloud

    • Standard or Plus seats for eligible Gemini Enterprise customers
    • spend caps
    • centralized admin controls

Kiro plans

  • Free

    $0

    Entry tier to try Kiro

    • 50 credits
    • Open-weight models
    • Claude Sonnet 4.5 with rate limits

  • Pro

    $20/user/mo

    Individual paid plan

    • 1,000 credits
    • Premium models
    • Kiro Web
    • Add-on credits at $0.04

  • Pro+

    $40/user/mo

    More credits for heavier use

    • 2,000 credits
    • Premium models
    • Kiro Web
    • Add-on credits at $0.04

  • Pro Max

    $100/user/mo

    High-volume individual use

    • 5,000 credits
    • Premium models
    • Kiro Web
    • Add-on credits at $0.04

  • Power

    $200/user/mo

    Highest credit allowance

    • 10,000 credits
    • Premium models
    • Kiro Web
    • Add-on credits at $0.04

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

Google Antigravity
8.3overall
Kiro
8.0overall

Google Antigravity leads in 3 categories and Kiro in 0, with 2 tied.

  • Ease of Use

    Tied
    Google Antigravity
    8.0
    Kiro
    8.0

  • Feature Depth

    Google Antigravity leads by 0.3
    Google Antigravity
    8.8
    Kiro
    8.5

  • Value for Money

    Google Antigravity leads by 0.9
    Google Antigravity
    8.4
    Kiro
    7.5

  • Performance & Speed

    Tied
    Google Antigravity
    8.0
    Kiro
    8.0

  • Documentation & Support

    Google Antigravity leads by 0.2
    Google Antigravity
    8.2
    Kiro
    8.0

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Google Antigravity

Pros

  • Free Individual plan with unlimited Tab completions and Command requests.
  • Offers Gemini, Claude and GPT-OSS models in one tool.
  • Parallel agents and background subagents in isolated Git worktrees.
  • Artifacts (plans, diffs, browser recordings) make agent output reviewable.
  • Available as app, CLI, IDE extensions and Python SDK on macOS, Windows and Linux.
  • Enterprise controls include SSO, VPC Service Controls and regional data residency.

Cons

  • Pricing page gives no numeric rate limits or credit amounts, so quotas are hard to predict.
  • Prices for Google AI Pro and Ultra are not shown on the Antigravity pricing page.
  • Weekly and five-hour limits apply, with Gemini and Claude/GPT usage tracked separately.
  • Product surfaces and release cadence are fast-moving, and some enterprise IDE features are still in Preview.

Kiro

Pros

  • Spec-driven workflow produces requirements, design and task lists before code is written.
  • Based on Code OSS, so VS Code settings, themes and Open VSX extensions carry over.
  • Same credit pool works across IDE, CLI and Web with no separate cloud compute charge.
  • Multiple model families, including open-weight options, with an Auto mode.
  • Free tier with 50 credits and downloadable apps on macOS, Windows and Linux.

Cons

  • Credits can run out quickly on complex spec tasks; costs vary by model and monthly credits do not roll over.
  • Free tier excludes premium models and is limited to open-weight models and Claude Sonnet 4.5 under rate limits.
  • Mobile app is iOS-only, in preview, and needs iOS 26 or later.
  • Cloud sessions are only available in US East (N. Virginia), and Enterprise pricing is not published.

Platforms

  • Web
    Google Antigravity
    Not supported
    Kiro
    Supported
  • Windows
    Google Antigravity
    Supported
    Kiro
    Supported
  • macOS
    Google Antigravity
    Supported
    Kiro
    Supported
  • iOS
    Google Antigravity
    Not supported
    Kiro
    Not supported
  • Android
    Google Antigravity
    Not supported
    Kiro
    Not supported
  • API
    Google Antigravity
    Supported
    Kiro
    Not supported
  • Browser Extension
    Google Antigravity
    Not supported
    Kiro
    Not supported
  • Linux
    Google Antigravity
    Supported
    Kiro
    Supported
  • CLI
    Google Antigravity
    Supported
    Kiro
    Supported
  • VS Code Extension
    Google Antigravity
    Supported
    Kiro
    Not supported
  • JetBrains Plugin
    Google Antigravity
    Supported
    Kiro
    Not supported

Integrations

Google Antigravity

11 integrations
  • MCP
  • Git
  • Firebase
  • Android
  • Chrome DevTools
  • Flutter
  • Google Cloud
  • Google Maps
  • Visual Studio
  • Zed
  • Xcode

Kiro

12 integrations
  • GitHub
  • GitLab
  • Figma
  • Postman
  • Datadog
  • Miro
  • Stripe
  • Supabase
  • ElevenLabs
  • Firebase
  • Terraform
  • MCP

Company

  • Company
    Google Antigravity
    Google
    Kiro
    Amazon Web Services (AWS)
  • Founded
    Google Antigravity
    1998
    Kiro
    2006
  • Headquarters
    Google Antigravity
    Mountain View, California, USA
    Kiro
    Seattle, Washington, USA
  • Listing
    Google Antigravity
    Claimed
    Kiro
    Claimed

Frequently asked questions

Is Google Antigravity better than Kiro?

It depends on your workflow. Google Antigravity is built for parallel coding agents, legacy migrations, automated testing, incident triage, prototyping. Kiro is built for turning feature ideas into structured specs and tasks before agents write code in large codebases.

What are the key feature differences between Google Antigravity and Kiro?

Google Antigravity: Google's agent-first platform for building software with parallel AI coding agents. Kiro: Spec-driven agentic IDE from AWS that turns prompts into designs, tasks and code.

Does Google Antigravity or Kiro have a free plan?

Yes, both do. Google Antigravity is freemium and Kiro is freemium, and each has a free plan or trial.

Which is cheaper, Google Antigravity or Kiro?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.