OpenAI Codex vs Cursor for AI coding: which should you use?

Verdict: Cursor is our #1 AI IDE and Codex is our #2 terminal coding agent, so choose Cursor for an AI-first editor and Codex if you want an open-source CLI that comes with your ChatGPT plan.

Pick by use case
FeatureOpenAI CodexCursor
Best StackRank rank#2 in “Best terminal/CLI coding agent”#1 in “Best AI IDE for vibe coding”
What it isOpenAI's coding agent, available as CLI, IDE extension and cloud.AI code editor built on a VS Code fork, with an agent mode.
CategoryCoding AgentsAI IDEs
Pricing modelfreemiumfreemium
IntegrationsCLI, VSCode, Desktop, Web, MCPIDE, MCP
Self-hostableNo / not listedNo / not listed
Open-source repoopenai/codex—
Last verifiedOct 14, 2026Oct 14, 2026

Choose OpenAI Codex if

you want an open-source CLI (Apache 2.0) plus IDE extensions (VS Code, Cursor, Windsurf, JetBrains, Xcode), cloud tasks and the ChatGPT desktop app, all on your ChatGPT account. A $0 Free plan includes Codex in the desktop app, subject to rollout. The Codex extension also runs inside Cursor.

Choose Cursor if

you want the agent built into a dedicated editor, with a CLI (headless and GitHub Actions support) and, from Premium, cloud agents from the same vendor, and a choice of models from Anthropic, OpenAI, Gemini, Cursor and Grok. Cursor isn't open source, its Plus plan is Grok-models-only, and third-party models cost extra at API list price from Premium up.

Try them

Updated Oct 14, 2026 · How we rank