For the complete documentation index, see llms.txt. Markdown versions of documentation pages are available by appending .md to the page URL.
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Use cases

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Discover protein folding models

Turn protein-folding hypotheses into benchmarked experiment loops.

Sciences Engineering

QA your app with Computer Use

Click through real product flows and log what breaks.

Automation Quality

Build for iOS

Use Codex to scaffold, build, and debug SwiftUI apps for iPhone and iPad.

iOS Code

Adopt liquid glass

Use Codex to migrate an existing SwiftUI app to Liquid Glass with iOS 26 APIs and Xcode 26.

iOS Code

Debug in iOS simulator

Use Codex and XcodeBuildMCP to drive your app in iOS Simulator, capture evidence, and...

iOS Code

Add iOS app intents

Use Codex to make your app's actions and content available to Shortcuts, Siri, Spotlight...

iOS Code

Refactor SwiftUI screens

Use Codex to split an oversized SwiftUI screen into small subviews without changing behavior...

iOS Code

Follow a goal

Give Codex a durable objective for long-running work.

Engineering Automation

Run verified operations

Run repeatable workflows and verify the result.

Automation Integrations