OpenAI’s GPT-5.3-Codex drops as Anthropic upgrades Claude — AI coding wars heat up ahead of Super Bowl ads

OpenAI launched GPT-5.3-Codex as Anthropic released Claude Opus 4.6 in a simultaneous drop that kicks off the AI coding wars, ...

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

Apple's Xcode 26.3 integrates Anthropic's Claude and OpenAI's Codex, letting AI agents autonomously write, build, and test code—sparking debate over security and the future of software development.