OpenAI GPT-5.4 is rumored after a Codex demo leak; GPT-5.3 is already in Codex, raising release timing questions.

Anthropic, a smaller rival started by OpenAI defectors, has found runaway success with its programming agent, Claude Code.

Some charts featured in its OpenAI's GPT-5 livestream on Thursday had several mistakes, which CEO Sam Altman called a "mega chart screwup." ...

OpenAI ChatGPT 6 plans come into view; a late 2026 developer preview and early 2027 public release are cited, shaping roadmap expectations.

Users will have to connect their OpenAI or Anthropic accounts to Xcode via an API key. Apple said it uses an open standard that gives programmers the ability to use other compatible agents and AI ...