Apple integrates Anthropic’s Claude and OpenAI’s Codex into Xcode 26.3 in push for ‘agentic coding’

Apple on Tuesday announced a major update to its flagship developer tool that gives artificial intelligence agents unprecedented control over the app-building process, a move that signals the iPhone maker's aggressive push into an emerging and controversial practice known as "agentic coding."Xcode 26.3, available immediately as a release candidate, integrates Anthropic's Claude Agent and OpenAI's Codex directly into Apple's development environment, allowing the AI systems to autonomously write code, build projects, run tests, and visually verify their own work — all with minimal human oversight.The update is Apple's most significant embrace of AI-assisted software development since introducing intelligence features in Xcode 26 last year, and arrives as "vibe coding" — the practice of deleg