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Xcode AI Assistant

Are you searching for the best AI tool for Swift development on macOS or iOS? Xcode’s AI Assistant, introduced in Xcode 16, is built for that. It uses a custom local LLM to generate and complete Swift code from natural prompts. For advanced features and broader language support, extensions like GitH

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About this tool

Xcode AI Assistant (Alex) is an AI programming tool built specifically for iOS and Swift app development, positioned as the most powerful AI agent in Xcode, designed to simplify workflows, tackle complex coding challenges, and boost development efficiency. According to the official introduction, more than 25,000 developers already use Alex to ship apps faster.

Main capabilities

  • Automatic error fixing: With one click, let Alex automatically fix Swift errors and Xcode issues through AI debugging.
  • Autocomplete: AI-powered Xcode autocomplete; after typing a few characters, press Tab to complete the code.
  • Inline code replacement: Use ⌘+K to replace lines of code in a file with a simple command.
  • Add lines of code from Xcode: Use ⌘+L to select text in Xcode and instantly converse with it, which the official description says feels similar to Cursor.
  • Automatically add SPM packages: Alex can navigate the Xcode interface and UI to automatically add Swift SPM packages.
  • Run local models: Supports running local models for free, such as models from Ollama and LM Studio.
  • Image to code: Drag any image into Alex, and the AI can instantly generate Swift or UIKit code for iOS development.
  • Semantic search: Perform semantic search across the entire Xcode project to quickly find functions, variables, and files.
  • Web search agent: Alex can search Google for coding answers just like a user.
  • Run terminal commands: Alex can run terminal commands in the project.
  • Automatic build and run: Automatically build the project, fix errors, add Swift packages, add file errors, run the app in the simulator, and more.

How to use Alex is used as an AI agent integrated with Xcode, providing coding assistance within Xcode through interactions such as keyboard shortcuts (e.g., ⌘+K, ⌘+L) and Tab completion. Users can connect to OpenAI-compatible endpoints or run local models. The official description mentions endpoints that can cover all AI models.

Use cases Suitable for iOS and Swift app development, including everyday coding, error fixing, dependency management, code search, image-to-code, and project building and simulator running. The official description lists examples of apps built with Alex, such as Granola (an AI meeting notes app).

Privacy andSecurity The official description emphasizes that Alex does not relay user code through its servers, and teams can use any OpenAI-compatible endpoint, including local models, for maximum privacy. Code is embedded by VoyageAI and stored on the user's local computer; the official description says it is not stored or used for training. Users can override all AI model endpoints; if they choose to use its hosted inference, the official description says it opts out of data retention and training with AI providers (Anthropic, OpenAI, Fireworks AI, Cerebras, and Gemini), so they do not store or train on user data. All sensitive data (chat history, transcripts, memory, and custom prompts) is stored on the local computer and is not collected by the official service.

Pricing The official description says there is a plan for everyone and lists some details: 600 chat credits per month, unlimited code applications, unlimited Tab completion, unlimited voice input, unlimited Git commit generation; 250 extra credits for $12.50; unlimited chat credits per month. Complete pricing and plan details are not yet provided.

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