New large language models seem to spring up daily, and OpenAI's (OPENAI) latest, GPT-5.3-Codex, was the startup's first model ...
OpenAI has introduced GPT-5.3-Codex, a new generation of its Codex coding system that did more than write software for others ...
OpenAI’s GPT-5.3-Codex is 25 percent faster and requires less than half the tokens as its predecessor, 5.2-Codex.