QUICK ANSWER
● Cursor wins on: Daily IDE workflow, Tab autocomplete, interactive editing, multi-model routing
● Codex wins on: Async headless execution, Windows computer use, mobile remote coding, queue-and-forget
● They don't really compete: Cursor is your editor, Codex is your async agent — most teams use both
● Context: Cursor is now a SpaceX subsidiary — Codex's OpenAI ownership is unchanged
Codex vs Cursor — Full Comparison
| Feature |
Codex (OpenAI) |
Cursor (SpaceX) |
| Paradigm |
Async headless agent |
IDE (VS Code fork) |
| You interact by... |
Queueing tasks, reviewing PRs |
Editing in the IDE |
| Tab autocomplete |
No |
Yes — unlimited, best available |
| Windows computer use |
Yes — unique capability |
No |
| Mobile remote coding |
Yes — iOS + Android app |
No |
| Output format |
Pull request or file diff |
Inline edits in editor |
| Underlying model |
GPT-5.5 / o3 |
Claude, GPT-5.5, Gemini (routing)* |
| JetBrains support |
No |
No (VS Code only) |
| Background agents |
Core feature — headless |
Yes — parallel in editor |
| Free tier |
Limited (ChatGPT Plus) |
2-week trial |
| Entry price |
$20/month (ChatGPT Plus) |
$20/month (Pro) |
Codex — What It Actually Does
OpenAI Codex (GA June 2026 — distinct from the deprecated legacy Codex model) is a task-based async agent. You give it a task — fix this bug, write tests for this module, refactor this service — and Codex executes it headlessly in the background. The output arrives as a pull request or file diff that you review. You never interact with Codex in real time the way you do with Cursor. It is closer to delegating to a junior developer than working alongside one.
The two capabilities that make Codex genuinely unique: Windows computer use — Codex can operate the Windows desktop including GUI applications, not just code files — and mobile remote coding — the Codex iOS and Android app lets you queue tasks from your phone. Neither capability exists in Cursor. For developers who need to trigger coding tasks from a phone, automate Windows GUI workflows, or work async without a computer in front of them, Codex is the only option in this comparison.
Cursor — What It Actually Does
Cursor is a VS Code fork with AI woven throughout the editor. Tab autocomplete predicts multi-line and cross-file changes. Agent mode handles larger tasks. Background Agents run multiple parallel tasks while you keep coding. The whole experience is synchronous and interactive — you see changes happen in the editor, you provide feedback, you iterate. This is fundamentally different from Codex's async queue-and-wait model.
Cursor's multi-model routing lets you pick Claude Opus 4.8, GPT-5.5, or Gemini per task — or use Auto mode which selects the optimal model automatically at no extra credit cost. This flexibility is Cursor's key advantage over tools locked to a single model. Note: Cursor was acquired by SpaceX on June 16, 2026. Claude routing currently works but may be de-emphasised as SpaceX integrates xAI's Grok models post-acquisition close (Q3 2026).
The Workflow Where They Work Together
Codex and Cursor are genuinely complementary. Use Cursor for interactive daily coding — inline suggestions, quick edits, exploring a codebase, writing feature code where you want to stay in the loop. Use Codex for tasks you want to fire and forget — bug fixes, test suites, refactors that do not need your attention. In the morning: queue five tasks in Codex from your phone while commuting. At your desk: write new feature code in Cursor. At lunch: review Codex's five pull requests.
Decision Framework
Choose Codex if:
You want to queue tasks and review pull requests rather than interact with the agent. You need Windows computer use or mobile coding. You want async background execution without sitting at a computer.
Choose Cursor if:
You want the best in-editor daily coding experience. You need Tab autocomplete and inline suggestions. You want multi-model flexibility (noting SpaceX acquisition uncertainty).
If you can only pick one and want the best IDE:
Windsurf at $15/month is currently ranked #1 in the 2026 LogRocket AI Dev Tool Power Rankings — better value than Cursor, independent ownership, and includes the Devin cloud handoff for async tasks without needing Codex separately. See our full four-way comparison.
Related: Claude Code vs Cursor · Four-way comparison · Best AI coding agents 2026 · Cursor pricing