Side-by-side comparison · Coding & Dev Tools
CodeRabbit vs Google Antigravity vs Kiro
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Teams and solo builders shipping code through GitHub or GitLab, especially those letting AI agents write most of it.
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 technical founders who want a written plan before the AI builds anything, especially teams already on AWS.
Overview
| Attribute | CodeRabbit | Google Antigravity | Kiro |
|---|---|---|---|
| In one line | AI that reviews every code change on GitHub and flags bugs before they go live. | Google's free coding app. You hand tasks to AI agents and review what they produce. | Amazon's AI code editor that writes a plan and requirements before it writes any code. |
| Pricing model | Freemium | Freemium | Freemium |
| Starting price | $24/dev/mo | $19.99/mo | $20/mo |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | Yes | No | Yes |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | CodeRabbit | Google Antigravity | Kiro |
|---|---|---|---|
| Overall rating | 3.9 | 3.9 | 3.6 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.5 | 3.5 | 4.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 4.5 | 4.0 | 4.5 |
| Output qualityHow good the results are before you fix them. | 4.0 | 4.0 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 3.0 | 4.5 | 3.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 3.5 | 3.5 | 3.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | CodeRabbit | Google Antigravity | Kiro |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | No | No | Yes |
| Desktop app | No | Yes | Yes |
| Browser extension | No | Yes | No |
| API access | Yes | Yes | No |
| Teams & business | |||
| Team workspace | Yes | Yes | Yes |
| Enterprise plan or SSO | Yes | Yes | Yes |
| Connects to other apps | Yes | Yes | Yes |
| Open source or self-hosted | – | No | No |
| AI abilities | |||
| Works with your files | No | Yes | Yes |
| Understands images | No | Yes | Yes |
| Makes images | No | Yes | 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 | Yes |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 9/ 17 | 14/ 17 | 12/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | CodeRabbit | Google Antigravity | Kiro |
|---|---|---|---|
| Plans | Free Free Open-source projects and trying it out. | IndividualOur pick Free Trying agent-based coding without paying. | Free Free Trying spec mode on a small project. |
EssentialsOur pick $24/dev/mo billed yearly, or $30 monthly Small teams who want every pull request reviewed. | Google AI Pro $19.99/mo People who already have or want the Google AI Pro bundle. | ProOur pick $20/mo Most individuals using it a few days a week. | |
Team $48/dev/mo billed yearly, or $60 monthly Busier teams with many open pull requests. | Google AI Ultra From $99.99/mo Developers who want Antigravity as a daily driver. | Pro+ $40/mo Regular daily users. | |
Advanced $72/dev/mo billed yearly, or $90 monthly Teams that want security monitoring. | Business (via Google Cloud) From $30/seat/mo Companies already on Google Cloud. | Pro Max $100/mo Professionals in Kiro for hours each day. | |
Enterprise Custom Large organisations. | Power $200/mo The heaviest users. | ||
Enterprise Custom Companies that need SSO and central billing. | |||
| Which plan to pick | Start with the 14-day trial. Essentials is enough for most small teams; you only pay for developers who open pull requests. Turn on usage-based reviews ($0.25 a file) with a monthly cap if you keep hitting the hourly limit. | Start 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. | Pro at $20 is the place to start, and you get $20 off your first paid month when you upgrade. Use the Auto model to make credits last, and only move up a tier once you know your monthly usage. |
Key features
| Attribute | CodeRabbit | Google Antigravity | Kiro |
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Pros and cons
| Attribute | CodeRabbit | Google Antigravity | Kiro |
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Who each one is for
| Attribute | CodeRabbit | Google Antigravity | Kiro |
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Questions people ask
Which is better, CodeRabbit, Google Antigravity or Kiro?
They tie on our overall rating (CodeRabbit 3.9/5, Google Antigravity 3.9/5 and Kiro 3.6/5). CodeRabbit is best for Reviewing AI-written code before it ships and small teams without a senior reviewer. Google Antigravity is best for Trying AI coding agents for free and running several agents at once. Kiro is best for turning a rough idea into requirements and a plan and bigger features you want planned before building.
Which is cheaper, CodeRabbit, Google Antigravity or Kiro?
CodeRabbit: There's a free plan, and paid plans start at $24/dev/mo. Google Antigravity: There's a free plan, and paid plans start at $19.99/mo. Kiro: There's a free plan, and paid plans start at $20/mo.
Which is easier to use, CodeRabbit, Google Antigravity or Kiro?
CodeRabbit rates highest for ease of use in our scores. Teams and solo builders shipping code through GitHub or GitLab, especially those letting AI agents write most of it.
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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