Artificial intelligence is entering the era of self-improvement. On Thursday afternoon, OpenAI released a new cutting-edge coding model that the company said assisted in its own creation.

Is GPT-5.3 Codex the fantastic option developers have been waiting for? With its lightning-fast execution, a staggering 400K token context window, and unparalleled efficiency, OpenAI’s latest model is ...

According to OpenAI, GPT-5.3-Codex was "instrumental in creating itself." "The Codex team used early versions to debug its own training, manage its own deployment, and diagnose test results and ...

On Friday, OpenAI engineer Michael Bolin published a detailed technical breakdown of how the company’s Codex CLI coding agent works internally, offering developers insight into AI coding tools that ...

As OpenAI and Anthropic feud over AI advertising, both companies are running Super Bowl ads for their AI products. After OpenAI boss Sam Altman said its ad would focus on “builders,” OpenAI debuted ...

The world’s oldest complete Hebrew Bible, the Codex Sassoon, recently unveiled at the Anu–Museum of the Jewish People in Tel Aviv, carries a direct connection to India through its namesake, David ...