AI tools comparison
Cursor vs Codex: 2026 comparison
Across 8 comparable criteria, Cursor wins 1, Codex wins 2, with 5 ties. Cursor leads on recognition; Codex on platforms and open source.
Cursor and Codex in brief
Cursor and Codex both aim to handle parts of software development through an AI assistant. Cursor highlights understanding a project, editing multiple files and assigning development work to a remote agent. Codex also explicitly lists commands, tests, debugging and repository review. Both offer free access, but their advertised paid entry points require careful reading. The lowest listed subscriptions have specific restrictions, so the relevant comparison is the work your chosen plan actually lets you delegate.
Cursor : Cursor explains project code and modifies multiple files from a request. It serves people developing software who want to delegate tasks to a remote agent or propose changes on GitHub.
Codex : Codex lets people developing software write and edit code, fix errors, run commands and tests, and review repository changes. It also supports background development tasks and programming agent integration into workflows.
They are often weighed against each other by people who hesitate. This page lines up their features point by point (10 criteria), with no partnership with either publisher.
Comparison table
| Criterion | Cursor | Codex |
|---|---|---|
| Category | AI coding assistants | AI coding assistants |
| Website | cursor.com | openai.com |
| Publisher | Anysphere, Inc. | OpenAI OpCo, LLC |
| Pricing model | freemium (limited free use, then paid) | freemium (limited free use, then paid) |
| Free tier | Yes | Yes |
| Entry price | $8 per month | $8 per month |
| Platforms | Windows, macOS, Linux, web browser, API | web browser, Windows, macOS, Linux, iPhone and iPad, browser extension, API, Slack |
| Languages | English | English |
| API | Yes | Yes |
| Data hosting | In several regions depending on the plan | In several regions depending on the plan |
| Source code | closed | public |
| Site score | 65/100 | 90/100 |
Criterion by criterion
For each criterion: why it matters, each one's value and who has the edge. A criterion without data on both sides is not decided.
Free tier
A free tier lets you test the tool on your own examples before paying anything. Cursor : yes. Codex : yes. A tie on this point.
Entry price
The first paid plan, per month, gives the minimum cost of regular use; higher plans cost more. Cursor : $8 per month. Codex : $8 per month. A tie on this point.
Public API
An API lets you connect the tool to your software, an automation tool or an AI agent. Cursor : yes. Codex : yes. A tie on this point.
Data export
Being able to get your content back avoids lock-in the day you want to switch tools. Cursor : not disclosed. Codex : yes. Cannot be decided: data missing on one side.
Data hosting
Where data is stored matters for GDPR and client data: the EU or local processing make compliance simpler. Cursor : several regions. Codex : several regions. A tie on this point.
Interface languages
More interface languages make the tool easier to roll out across an international team. Cursor : 1. Codex : 1. A tie on this point.
Platforms
The more platforms (web, desktop, mobile, extension), the better the tool fits your daily routine. Cursor : Windows, macOS, Linux, web browser, and API. Codex : web browser, Windows, macOS, Linux, iPhone and iPad, browser extension, API, and Slack. Edge: Codex.
Open source
Public code lets you audit the tool, self-host it and keep using it if the publisher changes course. Cursor : no. Codex : yes. Edge: Codex.
Track record
A tool launched several years ago has a longer history: less risk of sudden shutdown, more user feedback. Cursor : not published. Codex : launched in 2025. Cannot be decided: data missing on one side.
Recognition
The number of reference community lists citing the tool shows how well known it is among practitioners. Cursor : cited in 4 lists. Codex : cited in 3 lists. Edge: Cursor.
In charts
Our analysis
Anysphere’s Cursor describes a project-oriented workflow: explain existing code, change several files from a request and hand development tasks to a remote agent. Creating a proposed change on GitHub is also listed. OpenAI’s Codex covers writing and editing files, finding and fixing errors, running commands and tests, and reviewing repository changes. It additionally describes background development tasks and embedding a coding agent in a workflow. These feature lists help identify which operations each product explicitly documents. They do not provide measured evidence about coding accuracy, task completion rates or the amount of developer time either product saves.
Both products are freemium and have a free offering. Cursor lists USD 8 per month for Plus within The X Subscription, with only Grok models available on that plan. Codex lists USD 8 per month through ChatGPT Go for limited desktop application access, depending on rollout. Its USD 20 monthly Plus option notably opens cloud features, the CLI and the IDE extension. The matching entry prices therefore do not buy equivalent access to the capabilities described. The supplied data also leaves free-tier restrictions and usage quotas unspecified, which limits any comparison based solely on monthly subscription cost.
Both entries describe mixed data hosting, without naming locations, retention periods or code-processing conditions. This is insufficient to judge whether either option meets requirements for a sensitive repository. Cursor is listed as closed source and Codex as open source, although the precise scope of that openness is not supplied. Codex documents exports of code files and patches, plus JSONL traces through its CLI. Cursor has no documented export method in the provided data. Their scores of 65 and 90 out of 100 assess access and transparency, respectively; they do not establish a difference in programming quality.
Cursor lists Windows, macOS, Linux, web and API availability. Codex lists those forms of access alongside iOS, an extension and Slack. A broader platform list does not establish that every capability is available on every platform or subscription. Both interfaces are listed in one language, without French. In daily work, Cursor’s documented sequence runs from understanding a project to changing files and proposing a GitHub modification. Codex explicitly includes command execution, testing and review as well. Match those operations to your actual development process, then check the subscription requirements before treating a listed feature as part of your available setup.
Depending on your situation
The right choice depends on use. For a few common situations, here are the criteria that matter and who wins (Cursor value / Codex value).
Personal use on a tight budget
Neither stands out on the criteria for this situation (free tier (yes / yes), entry price ($8 per month / $8 per month), and interface languages (1 / 1)): decide with a trial.
Business use with client data
Neither stands out on the criteria for this situation (data hosting (several regions / several regions), data export (not disclosed / yes), and track record (not published / launched in 2025)): decide with a trial.
Integration with your software
Here, Codex has the edge: it wins 2 of the 3 criteria that matter in this situation, namely public api (yes / yes), open source (no / yes), and platforms (Windows, macOS, Linux, web browser, and API / web browser, Windows, macOS, Linux, iPhone and iPad, browser extension, API, and Slack).
Which one to choose?
Choose Cursor if…
- you value recognition (cited in 4 lists)
Cursor is a logical fit if you want help understanding a project, changing multiple files and assigning work to a remote agent. Its documented GitHub change proposal feature also supports that workflow. If the USD 8 monthly plan is the option you are considering, make sure its restriction to Grok models matches what you need.
Choose Codex if…
- you value platforms (web browser, Windows, macOS, Linux, iPhone and iPad, browser extension, API, and Slack)
- you value open source (yes)
Codex fits workflows that explicitly require running commands and tests, fixing errors and reviewing repository changes. Documented patch exports and CLI traces may also matter for your process. Check the required subscription carefully: the USD 8 entry point offers limited access, while cloud features, the CLI and the IDE extension are mentioned with the USD 20 Plus plan.
Strengths and limits of each
Cursor
- + Free tier to try it
- + Cheaper than its category median
- + Public API
- − Data export not documented
Codex
- + Free tier to try it
- + Cheaper than its category median
- + Public API
The best test is still yours: take three real tasks from your day and give them to both for a week.
What about the others?
If neither suits you, look at aider, Kilo, GitHub Copilot, Amazon Q Developer, OpenCode, and Amp.
Related comparisons:
Conclusion
Base the decision on the development operations you need and the plan that actually includes them. Cursor documents project editing, remote delegation and GitHub change proposals. Codex also spells out testing, commands, review and exports. Equal entry prices conceal different access conditions. Source openness and data disclosures are additional selection criteria, but neither those details nor the transparency scores demonstrate that one tool produces better code.
Verdict
Codex leads on more criteria (2 of 8). That does not make it the best choice for everyone: look first at the criteria that matter to you.
Full profiles
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Frequently asked questions
Cursor or Codex: which is better?
Codex leads on more criteria (2 of 8). That does not make it the best choice for everyone: look first at the criteria that matter to you.
What is the main difference between Cursor and Codex?
Cursor leads on recognition (cited in 4 lists vs cited in 3 lists), Codex on platforms (web browser, Windows, macOS, Linux, iPhone and iPad, browser extension, API, and Slack vs Windows, macOS, Linux, web browser, and API).
Are Cursor and Codex free?
Free tier: Cursor, yes; Codex, yes.
Which one is cheaper?
Entry price: Cursor, $8 per month; Codex, $8 per month.
Which one protects my data better?
Data hosting: Cursor, several regions; Codex, several regions. For sensitive data, also check the publisher's data processing agreement.
What alternative to Cursor and Codex?
In the same family: aider, Kilo, and GitHub Copilot.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score