quickstart.md Codex Docs, 2026-03-07 18:10 UTC → 2026-04-10 18:23 UTC

1# Quickstart1# Quickstart

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3ChatGPT Plus, Pro, Business, Edu, and Enterprise plans include Codex. Using Codex with your ChatGPT subscription gives you access to the latest Codex models and features.3Every ChatGPT plan includes Codex.

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5You can also use Codex with API credits by signing in with an OpenAI API key.5You can also use Codex with API credits by signing in with an OpenAI API key.

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7For a limited time, **try Codex for free in ChatGPT Free and Go**, or enjoy

8**2x Codex rate limits** with Plus, Pro, Business and Enterprise

9subscriptions.

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11## Setup7## Setup

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13The Codex app is available on macOS (Apple Silicon).9The Codex app is available on macOS (Apple Silicon).

41- Find and fix bugs in my codebase with minimal, high-confidence changes.36- Find and fix bugs in my codebase with minimal, high-confidence changes.

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43 If you need more inspiration, check out the [explore section](https://developers.openai.com/codex/explore).38 If you need more inspiration, check out the [explore section](https://developers.openai.com/codex/explore).

39 If you’re new to Codex, read the [best practices guide](https://developers.openai.com/codex/learn/best-practices).

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45 [Learn more about the Codex app](https://developers.openai.com/codex/app)41 [Learn more about the Codex app](https://developers.openai.com/codex/app)

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694. Use Git checkpoints654. Use Git checkpoints

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71 Codex can modify your codebase, so consider creating Git checkpoints before and after each task so you can easily revert changes if needed.67 Codex can modify your codebase, so consider creating Git checkpoints before and after each task so you can easily revert changes if needed.

68 If you’re new to Codex, read the [best practices guide](https://developers.openai.com/codex/learn/best-practices).

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73 [Learn more about the Codex IDE extension](https://developers.openai.com/codex/ide)70 [Learn more about the Codex IDE extension](https://developers.openai.com/codex/ide)

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1004. Use Git checkpoints974. Use Git checkpoints

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102 Codex can modify your codebase, so consider creating Git checkpoints before and after each task so you can easily revert changes if needed.99 Codex can modify your codebase, so consider creating Git checkpoints before and after each task so you can easily revert changes if needed.

100 If you’re new to Codex, read the [best practices guide](https://developers.openai.com/codex/learn/best-practices).

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104[Learn more about the Codex CLI](https://developers.openai.com/codex/cli)102[Learn more about the Codex CLI](https://developers.openai.com/codex/cli)

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