Side-by-side comparison · Coding & Dev Tools
Amp vs CodeRabbit 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.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Developers and engineering teams working on large codebases who want agents running in the background, not tied to their laptop.
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: Developers who already pay for an X Subscription or Grok and want a Claude Code-style agent included in it.
Overview
| Attribute | Amp | CodeRabbit | Grok Build |
|---|---|---|---|
| In one line | A coding agent that keeps working on remote machines after you close your laptop. | AI that reviews every code change on GitHub and flags bugs before they go live. | xAI's open-source terminal coding agent, included in every paid X Subscription plan. |
| Pricing model | Freemium | Freemium | Paid |
| Starting price | $20/mo | $24/dev/mo | $8/mo |
| Free plan | Yes | Yes | No |
| Works with Claude Code | Yes | Yes | Yes |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Amp | CodeRabbit | Grok Build |
|---|---|---|---|
| Overall rating | 4.0Winner | 3.9 | 3.5 |
| Ease of useHow quickly someone non-technical gets value from it. | 3.0 | 4.5 | 3.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 4.5 | 4.5 | 4.0 |
| Output qualityHow good the results are before you fix them. | 4.5 | 4.0 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 4.0 | 3.0 | 3.5 |
| 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 | Amp | CodeRabbit | Grok Build |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | No |
| Mobile app | Yes | No | No |
| Desktop app | Yes | No | No |
| Browser extension | No | No | 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 | Yes | – | Yes |
| AI abilities | |||
| Works with your files | Yes | No | Yes |
| Understands images | Yes | No | – |
| 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 | – |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 13/ 17 | 9/ 17 | 9/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Amp | CodeRabbit | Grok Build |
|---|---|---|---|
| Plans | HobbyOur pick Free Developers with their own model subscription or keys. | Free Free Open-source projects and trying it out. | X Subscription Plus $8/mo Trying Grok Build alongside Grok and X Premium. |
Megawatt $20/mo Individuals who want Amp to host the machines. | EssentialsOur pick $24/dev/mo billed yearly, or $30 monthly Small teams who want every pull request reviewed. | X Subscription PremiumOur pick $30/mo Developers who use Grok most days. | |
Gigawatt $200/mo Heavy users running many big jobs. | Team $48/dev/mo billed yearly, or $60 monthly Busier teams with many open pull requests. | Super / Ultra $100/mo or $200/mo Heavy users running agents all day. | |
Enterprise Custom Large companies with security and compliance needs. | Advanced $72/dev/mo billed yearly, or $90 monthly Teams that want security monitoring. | xAI API Pay as you go CI pipelines and people who prefer paying per use. | |
Enterprise Custom Large organisations. | |||
| Which plan to pick | Start on Hobby and link a ChatGPT or Claude subscription you already pay for. Move to Megawatt at $20 a month only when you want Amp to host the machines so tasks run while you're away. Teams can create a workspace at no extra charge. | 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. | 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
| Attribute | Amp | CodeRabbit | Grok Build |
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Pros and cons
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Who each one is for
| Attribute | Amp | CodeRabbit | Grok Build |
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Questions people ask
Which is better, Amp, CodeRabbit or Grok Build?
Amp scores highest overall in our ratings (Amp 4.0/5, CodeRabbit 3.9/5 and Grok Build 3.5/5). Amp is best for running several coding tasks in the background at once and working on big, messy codebases. CodeRabbit is best for Reviewing AI-written code before it ships and small teams without a senior reviewer. 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, Amp, CodeRabbit or Grok Build?
Amp: There's a free plan, and paid plans start at $20/mo. CodeRabbit: There's a free plan, and paid plans start at $24/dev/mo. Grok Build: There's no free plan. Paid plans start at $8/mo.
Which is easier to use, Amp, CodeRabbit 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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