Side-by-side comparison · Coding & Dev Tools
GitHub Copilot 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 developers whose code lives on GitHub and who want AI in the tools they already use.
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 | GitHub Copilot | Google Antigravity | OpenRouter |
|---|---|---|---|
| In one line | GitHub's AI helper: it finishes your code, reviews pull requests and takes on whole tasks. | 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 | $10/mo | $19.99/mo | Model prices plus a 5.5% fee on credit top-ups |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | No | No | Yes |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | GitHub Copilot | Google Antigravity | OpenRouter |
|---|---|---|---|
| Overall rating | 4.0Winner | 3.9 | 3.7 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.0 | 3.5 | 3.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 4.0 | 4.0 | 4.5 |
| Output qualityHow good the results are before you fix them. | 3.5 | 4.0 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 4.5 | 4.5 | 4.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 3.5 | 3.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | GitHub Copilot | Google Antigravity | OpenRouter |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | Yes | No | No |
| Desktop app | Yes | Yes | No |
| Browser extension | – | Yes | No |
| API access | – | 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 | No |
| AI abilities | |||
| Works with your files | Yes | Yes | Yes |
| Understands images | Yes | 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 | 12/ 17 | 14/ 17 | 10/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | GitHub Copilot | Google Antigravity | OpenRouter |
|---|---|---|---|
| Plans | Free Free Trying autocomplete and light chat. | IndividualOur pick Free Trying agent-based coding without paying. | Free Free Trying models and light hobby use. |
ProOur pick $10/mo Individual developers on GitHub. | 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. | |
Pro+ $39/mo Developers who run agent tasks every day. | 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. | |
Max $100/mo Heavy agent-driven work. | Business (via Google Cloud) From $30/seat/mo Companies already on Google Cloud. | Enterprise Custom Large teams with volume commitments. | |
Business and Enterprise See website Companies that need admin controls and policy management. | |||
| Which plan to pick | Pro is the sweet spot for an individual: cheap, unlimited autocomplete and enough credits for a few agent tasks a week. Only move to Pro+ if you find yourself buying extra credits every month. | 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 | GitHub Copilot | Google Antigravity | OpenRouter |
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Pros and cons
| Attribute | GitHub Copilot | Google Antigravity | OpenRouter |
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Who each one is for
| Attribute | GitHub Copilot | Google Antigravity | OpenRouter |
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Questions people ask
Which is better, GitHub Copilot, Google Antigravity or OpenRouter?
GitHub Copilot scores highest overall in our ratings (GitHub Copilot 4.0/5, Google Antigravity 3.9/5 and OpenRouter 3.7/5). GitHub Copilot is best for autocomplete as you type and Handing GitHub issues to an agent. 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, GitHub Copilot, Google Antigravity or OpenRouter?
GitHub Copilot: There's a free plan, and paid plans start at $10/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, GitHub Copilot, Google Antigravity or OpenRouter?
GitHub Copilot rates highest for ease of use in our scores. Teams and developers whose code lives on GitHub and who want AI in the tools they already use.
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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