Side-by-side comparison · Coding & Dev Tools
CodeRabbit vs GitHub Copilot vs OpenAI Codex
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: Teams and developers whose code lives on GitHub and who want AI in the tools they already use.
Pick it if: ChatGPT subscribers who want a coding agent without paying for a second subscription.
Overview
| Attribute | CodeRabbit | GitHub Copilot | OpenAI Codex |
|---|---|---|---|
| In one line | AI that reviews every code change on GitHub and flags bugs before they go live. | GitHub's AI helper: it finishes your code, reviews pull requests and takes on whole tasks. | OpenAI's coding agent. Hand it a task and it works away while you do other things. |
| Pricing model | Freemium | Freemium | Freemium |
| Starting price | $24/dev/mo | $10/mo | $8/mo |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | Yes | No | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | CodeRabbit | GitHub Copilot | OpenAI Codex |
|---|---|---|---|
| Overall rating | 3.9 | 4.0 | 4.2Winner |
| Ease of useHow quickly someone non-technical gets value from it. | 4.5 | 4.0 | 3.5 |
| 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 | 3.5 | 4.5 |
| Value for moneyWhat you get for the price, including the free plan. | 3.0 | 4.5 | 4.5 |
| Speed & reliabilityHow fast it is and how often it falls over. | 3.5 | 4.0 | 4.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | CodeRabbit | GitHub Copilot | OpenAI Codex |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | No | Yes | Yes |
| Desktop app | No | Yes | Yes |
| Browser extension | No | – | 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 | Yes |
| AI abilities | |||
| Works with your files | No | Yes | Yes |
| Understands images | No | Yes | Yes |
| Makes images | No | No | 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 | 12/ 17 | 14/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | CodeRabbit | GitHub Copilot | OpenAI Codex |
|---|---|---|---|
| Plans | Free Free Open-source projects and trying it out. | Free Free Trying autocomplete and light chat. | Free Free A quick look at what it can do. |
EssentialsOur pick $24/dev/mo billed yearly, or $30 monthly Small teams who want every pull request reviewed. | ProOur pick $10/mo Individual developers on GitHub. | Go $8/mo Occasional light tasks. | |
Team $48/dev/mo billed yearly, or $60 monthly Busier teams with many open pull requests. | Pro+ $39/mo Developers who run agent tasks every day. | PlusOur pick $20/mo Anyone who already pays for ChatGPT. | |
Advanced $72/dev/mo billed yearly, or $90 monthly Teams that want security monitoring. | Max $100/mo Heavy agent-driven work. | Pro From $100/mo Developers who hit the Plus limits. | |
Enterprise Custom Large organisations. | Business and Enterprise See website Companies that need admin controls and policy management. | Business $20/user/mo billed yearly, or $25 monthly Teams of 2 or more. | |
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. | 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. | If you already have ChatGPT Plus, you have Codex: just try it. If you are choosing between this and Claude Code with no existing subscription, Plus at $20 and Claude Pro at $20 cost the same, so pick whichever chat assistant you prefer. If you outgrow Plus, Pro starts at $100 and has no five-hour limit for now. The $200 tier gives new subscribers less usage than it used to, and Ultrafast mode is only on the $500 tier. |
Key features
| Attribute | CodeRabbit | GitHub Copilot | OpenAI Codex |
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Pros and cons
| Attribute | CodeRabbit | GitHub Copilot | OpenAI Codex |
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Who each one is for
| Attribute | CodeRabbit | GitHub Copilot | OpenAI Codex |
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Questions people ask
Which is better, CodeRabbit, GitHub Copilot or OpenAI Codex?
OpenAI Codex scores highest overall in our ratings (CodeRabbit 3.9/5, GitHub Copilot 4.0/5 and OpenAI Codex 4.2/5). CodeRabbit is best for Reviewing AI-written code before it ships and small teams without a senior reviewer. GitHub Copilot is best for autocomplete as you type and Handing GitHub issues to an agent. OpenAI Codex is best for background tasks in the cloud and starting a task from your phone.
Which is cheaper, CodeRabbit, GitHub Copilot or OpenAI Codex?
CodeRabbit: There's a free plan, and paid plans start at $24/dev/mo. GitHub Copilot: There's a free plan, and paid plans start at $10/mo. OpenAI Codex: There's a free plan, and paid plans start at $8/mo.
Which is easier to use, CodeRabbit, GitHub Copilot or OpenAI Codex?
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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