Side-by-side comparison · Coding & Dev Tools
Cursor vs Kiro 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: Developers and curious beginners who want AI help but still want a visual editor.
Pick it if: Developers and technical founders who want a written plan before the AI builds anything, especially teams already on AWS.
Pick it if: ChatGPT subscribers who want a coding agent without paying for a second subscription.
Overview
| Attribute | Cursor | Kiro | OpenAI Codex |
|---|---|---|---|
| In one line | A code editor with AI built in, for people who want to watch every change happen. | Amazon's AI code editor that writes a plan and requirements before it writes any code. | OpenAI's coding agent. Hand it a task and it works away while you do other things. |
| Pricing model | Freemium | Freemium | Freemium |
| Starting price | $8/mo | $20/mo | $8/mo |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | No | Yes | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Cursor | Kiro | OpenAI Codex |
|---|---|---|---|
| Overall rating | 3.9 | 3.6 | 4.2Winner |
| Ease of useHow quickly someone non-technical gets value from it. | 4.0 | 4.0 | 3.5 |
| FeaturesHow completely it covers the job it's built for, and how well the pieces fit together. | 4.5 | 4.5 | 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 | 3.0 | 4.5 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 3.0 | 4.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Cursor | Kiro | OpenAI Codex |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | Yes | Yes | Yes |
| Desktop app | Yes | Yes | Yes |
| Browser extension | No | No | No |
| API access | – | No | 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 | Yes |
| AI abilities | |||
| Works with your files | Yes | Yes | Yes |
| Understands images | Yes | 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 | 12/ 17 | 12/ 17 | 14/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Cursor | Kiro | OpenAI Codex |
|---|---|---|---|
| Plans | Free Free Trying the editor and a few agent runs. | Free Free Trying spec mode on a small project. | Free Free A quick look at what it can do. |
Plus $8/mo Light users who are happy with Grok models only. | ProOur pick $20/mo Most individuals using it a few days a week. | Go $8/mo Occasional light tasks. | |
PremiumOur pick $30/mo Most developers, especially if you want Claude alongside Grok. | Pro+ $40/mo Regular daily users. | PlusOur pick $20/mo Anyone who already pays for ChatGPT. | |
Super or Ultra $100/mo or $200/mo Heavy daily agent users. | Pro Max $100/mo Professionals in Kiro for hours each day. | Pro From $100/mo Developers who hit the Plus limits. | |
Legacy Pro $20/mo Existing subscribers only. New customers can't buy it. | Power $200/mo The heaviest users. | Business $20/user/mo billed yearly, or $25 monthly Teams of 2 or more. | |
Teams From $30/user/mo Companies that need admin controls and SSO. | Enterprise Custom Companies that need SSO and central billing. | Enterprise Custom Large organisations. | |
| Which plan to pick | If you are on the old $20 Pro plan and it covers what you use, stay put; switching is permanent. New customers should skip Plus unless they are happy with Grok. Premium is the realistic starting point if you want Claude, and budget for the extra usage billing on top of the $30. Large companies can ask about a custom Enterprise plan. | Pro at $20 is the place to start, and you get $20 off your first paid month when you upgrade. Use the Auto model to make credits last, and only move up a tier once you know your monthly usage. | 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 | Cursor | Kiro | OpenAI Codex |
|---|---|---|---|
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Pros and cons
| Attribute | Cursor | Kiro | OpenAI Codex |
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Who each one is for
| Attribute | Cursor | Kiro | OpenAI Codex |
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Questions people ask
Which is better, Cursor, Kiro or OpenAI Codex?
OpenAI Codex scores highest overall in our ratings (Cursor 3.9/5, Kiro 3.6/5 and OpenAI Codex 4.2/5). Cursor is best for editing with AI autocomplete and learning by watching changes happen. Kiro is best for turning a rough idea into requirements and a plan and bigger features you want planned before building. OpenAI Codex is best for background tasks in the cloud and starting a task from your phone.
Which is cheaper, Cursor, Kiro or OpenAI Codex?
Cursor: There's a free plan, and paid plans start at $8/mo. Kiro: There's a free plan, and paid plans start at $20/mo. OpenAI Codex: There's a free plan, and paid plans start at $8/mo.
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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