The 'Codex Gigas,' an 800-year-old manuscript and the largest of the Middle Ages, has a history as outsized as its dimensions. The Codex Gigas at an exhibit in Klementinum, Czech National Library, in ...

OpenAI announced on Friday it’s launching a research preview of Codex, the company’s most capable AI coding agent yet. Codex is powered by codex-1, a version of the company’s o3 AI reasoning model ...

OpenAI has introduced GPT-5 Codex, a version of GPT-5 that is fine-tuned for coding agent workflows and built to better support developers working across varied environments. Rather than just ...

What if writing code felt as effortless as having a conversation? With the release of Codex 2.0, OpenAI is reshaping the landscape of software development, offering a tool that doesn’t just assist but ...