OpenAI launched GPT-5.3-Codex as Anthropic released Claude Opus 4.6 in a simultaneous drop that kicks off the AI coding wars, ...
Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line ...
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By launching a desktop app, OpenAI is catching up to Anthropic’s popular Claude Code, which already offered a macOS version.