Notably, GPT-5.3-Codex is the first OpenAI model that was used to create itself: The team used early versions of the model to debug its training, manage its deployment, and diagnose test results and ...

OpenAI introduces Harness Engineering, an AI-driven methodology where Codex agents generate, test, and deploy a million-line ...

by Rhea Purohit in AI & I TL;DR: Today, we’re releasing a new episode of our podcast AI & I, where Dan Shipper sits down with two members of the team building OpenAI’s coding agent, Codex, Thibault ...

OpenAI has introduced GPT-5.3-Codex, a new generation of its Codex coding system that did more than write software for others, it helped build itself. The company describes this 5.3 family model as a ...

On Thursday, OpenAI released GPT-5.3-Codex, a new model that extends its Codex coding agent beyond writing and reviewing code to performing a much wider range of work tasks. The release comes as ...

GPT-5.3-Codex helped debug and deploy parts of itself. Codex can be steered mid-task without losing context. "Underspecified" prompts now produce richer, more usable results. OpenAI today announced ...

Since last spring, OpenAI has offered Codex. What started life as the company's response to Claude Code is becoming something more sophisticated with the release of a new dedicated macOS app. At its ...

OpenAI is launching a Codex app, a desktop experience for managing the company’s AI coding tools, as competitive pressure to deploy autonomous AI agents heats up. The desktop app is designed to be ...

OpenAI on Monday released a new desktop application for its Codex artificial intelligence coding system, a tool the company says transforms software development from a collaborative exercise with a ...

Codex Max processes massive workloads through improved context handling. Faster execution and fewer tokens deliver better real-world efficiency. First Windows-trained Codex enhances cross-platform ...