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Side-by-side comparison · Coding & Dev Tools

CodeRabbit vs GitHub Copilot vs Grok Build

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

CodeRabbit

3.9

From $24/dev/mo

Best overall

GitHub Copilot

4.0

From $10/mo

Grok Build

3.5

From $8/mo

Comparing 3 tools, the maximum.

At a glance

Easiest to use

Pick it if: Teams and solo builders shipping code through GitHub or GitLab, especially those letting AI agents write most of it.

Best overallBest value

Pick it if: Teams and developers whose code lives on GitHub and who want AI in the tools they already use.

Pick it if: Developers who already pay for an X Subscription or Grok and want a Claude Code-style agent included in it.

Overview

AttributeCodeRabbitGitHub CopilotGrok Build
In one lineAI 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.xAI's open-source terminal coding agent, included in every paid X Subscription plan.
Pricing modelFreemiumFreemiumPaid
Starting price$24/dev/mo$10/mo$8/mo
Free plan Yes Yes No
Works with Claude Code Yes No Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeCodeRabbitGitHub CopilotGrok Build
Overall rating3.94.0Winner3.5
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.0
3.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.0
4.0
Output qualityHow good the results are before you fix them.
4.0
3.5
3.5
Value for moneyWhat you get for the price, including the free plan.
3.0
4.5
3.5
Speed & reliabilityHow fast it is and how often it falls over.
3.5
4.0
3.5

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeCodeRabbitGitHub CopilotGrok Build
Access & platform
Free plan Yes Yes No
Mobile app No Yes No
Desktop app No Yes No
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–
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–
Works in many languages Yes Yes Yes
Capabilities score9/ 1712/ 179/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeCodeRabbitGitHub CopilotGrok Build
Plans

Free

Free

Open-source projects and trying it out.

Free

Free

Trying autocomplete and light chat.

X Subscription Plus

$8/mo

Trying Grok Build alongside Grok and X Premium.

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.

X Subscription PremiumOur pick

$30/mo

Developers who use Grok most days.

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.

Super / Ultra

$100/mo or $200/mo

Heavy users running agents all day.

Advanced

$72/dev/mo billed yearly, or $90 monthly

Teams that want security monitoring.

Max

$100/mo

Heavy agent-driven work.

xAI API

Pay as you go

CI pipelines and people who prefer paying per use.

Enterprise

Custom

Large organisations.

Business and Enterprise

See website

Companies that need admin controls and policy management.

Which plan to pickStart 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 pay for X, try it on the plan you have. Premium at $30 a month is the sensible level for regular coding, but if you're choosing a coding agent from scratch, Claude Code or Codex are the safer picks today. Plans changed on 12 October 2026, so check x.ai before you buy.

Key features

AttributeCodeRabbitGitHub CopilotGrok Build
Standout features
  • Pull request reviews
  • One-click fixes
  • Learns your rules
  • Reviews before you commit
  • Pre-merge checks
  • Triage and security
  • Inline suggestions
  • Coding agent
  • Code review
  • Chat everywhere
  • Hand off to other agents
  • Custom instructions
  • Full-screen terminal agent
  • Headless mode
  • Skills, plugins and MCP
  • Works in editors
  • Open source

Pros and cons

AttributeCodeRabbitGitHub CopilotGrok Build
Pros
  • Set up in minutes and reviews every pull request automatically
  • Catches real bugs, including ones the coding agent missed
  • Works with any coding agent or editor
  • Free for open-source projects
  • Learns your preferences when you reply to it
  • The cheapest paid plan in the category with unlimited autocomplete
  • Works inside the editors and the GitHub site you already use
  • Agent and code review are built into the GitHub workflow
  • Admin and security controls for big companies are well developed, because GitHub already had them
  • Included in X Subscription plans from $8 a month
  • Open source under Apache 2.0
  • Supports MCP servers, skills, plugins and hooks
  • Headless mode for scripts and CI
Cons
  • Marketed as unlimited, but hourly caps and fair-use slowdowns frustrate heavy users
  • Can be noisy, with nitpicks mixed in with real problems
  • Per-developer pricing adds up for bigger teams
  • Some users report billing mistakes, refund trouble and slow support
  • Agent quality lags Claude Code and Codex on complex tasks
  • $10 of credits a month disappears quickly once you use agents
  • Pretty pointless if your code is not on GitHub
  • Business and Enterprise prices are not published
  • New, with little independent review yet
  • Grok's coding quality hasn't been shown to match Claude or GPT
  • Plans and access rules have changed several times since launch
  • Terminal-first, so less friendly for non-developers

Who each one is for

AttributeCodeRabbitGitHub CopilotGrok Build
Best for
  • Reviewing AI-written code before it ships
  • Small teams without a senior reviewer
  • Catching bugs and security issues in pull requests
  • Open-source projects (free)
  • Autocomplete as you type
  • Handing GitHub issues to an agent
  • Automated code review
  • Teams already on GitHub
  • X Subscription users who want a coding agent included
  • Trying Grok models on real coding work
  • Developers who want an open-source agent they can inspect
  • Running agents in scripts and CI
You'll find it used by
  • Software teams
  • Open-source maintainers
  • Agencies
  • Solo founders
  • Development teams
  • Enterprises
  • Open source maintainers
  • Students
  • Developers
  • X power users
  • Open-source fans

Questions people ask

Which is better, CodeRabbit, GitHub Copilot or Grok Build?

GitHub Copilot scores highest overall in our ratings (CodeRabbit 3.9/5, GitHub Copilot 4.0/5 and Grok Build 3.5/5). 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. Grok Build is best for X Subscription users who want a coding agent included and Trying Grok models on real coding work.

Which is cheaper, CodeRabbit, GitHub Copilot or Grok Build?

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. Grok Build: There's no free plan. Paid plans start at $8/mo.

Which is easier to use, CodeRabbit, GitHub Copilot or Grok Build?

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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