Side-by-side comparison · Coding & Dev Tools
CodeRabbit vs Google Antigravity vs OpenRouter
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: Business owners and developers adding AI to a product, and anyone who wants to try lots of models cheaply from one account.
Overview
| Attribute | CodeRabbit | Google Antigravity | OpenRouter |
|---|---|---|---|
| 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. | One account and one API key for hundreds of AI models, paid for at the makers' prices. |
| Pricing model | Freemium | Freemium | Freemium |
| Starting price | $24/dev/mo | $19.99/mo | Model prices plus a 5.5% fee on credit top-ups |
| 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 | OpenRouter |
|---|---|---|---|
| Overall rating | 3.9 | 3.9 | 3.7 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.5 | 3.5 | 3.0 |
| 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 | 4.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 3.5 | 3.5 | 3.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | CodeRabbit | Google Antigravity | OpenRouter |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | No | No | No |
| Desktop app | No | Yes | No |
| Browser extension | No | Yes | No |
| API access | Yes | Yes | Yes |
| 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 | Yes |
| Makes video | No | No | – |
| Writes code | Yes | Yes | Yes |
| Runs agents or automations | Yes | Yes | – |
| Learns your brand or style | Yes | Yes | – |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 9/ 17 | 14/ 17 | 10/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | CodeRabbit | Google Antigravity | OpenRouter |
|---|---|---|---|
| Plans | Free Free Open-source projects and trying it out. | IndividualOur pick Free Trying agent-based coding without paying. | Free Free Trying models and light hobby use. |
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. | Pay as you goOur pick Model prices plus a 5.5% fee on credit top-ups Most businesses and developers building with AI. | |
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. | Business Model prices plus an 8% fee on credit top-ups Companies that need data kept in the EU or US. | |
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. | Enterprise Custom Large teams with volume commitments. | |
Enterprise Custom Large organisations. | |||
| 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. | Start free to test, then top up $10 to $20 of credit on Pay as you go. That alone lifts the free-model limit to 1,000 requests a day. Only look at Business if you have a legal reason to keep data in a region. |
Key features
| Attribute | CodeRabbit | Google Antigravity | OpenRouter |
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Pros and cons
| Attribute | CodeRabbit | Google Antigravity | OpenRouter |
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Who each one is for
| Attribute | CodeRabbit | Google Antigravity | OpenRouter |
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Questions people ask
Which is better, CodeRabbit, Google Antigravity or OpenRouter?
They tie on our overall rating (CodeRabbit 3.9/5, Google Antigravity 3.9/5 and OpenRouter 3.7/5). 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. OpenRouter is best for Adding AI to your app without five vendor accounts and trying new models cheaply on launch day.
Which is cheaper, CodeRabbit, Google Antigravity or OpenRouter?
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. OpenRouter: There's a free plan, and paid plans start at Model prices plus a 5.5% fee on credit top-ups.
Which is easier to use, CodeRabbit, Google Antigravity or OpenRouter?
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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