GPT-5.3 Codex merges the advanced coding capabilities of GPT-5.2 Codex with the reasoning and professional knowledge of GPT-5 ...
Claude Code generates computer code when people type prompts, so those with no coding experience can create their own programs and apps.
Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line, IDE extension, web interface, and the new macOS desktop app. (No API ...
GPT-5.3-Codex is the first time the ChatGPT maker has found that its own models can be instrumental in its own development.