In benchmark tests such as Swaybench Pro and Terminal Bench, GPT-5.3 Codex consistently outperformed its predecessors, setting new standards for speed and execution. When compared to Anthropic’s Opus ...

GPT-5.3 Codex merges the advanced coding capabilities of GPT-5.2 Codex with the reasoning and professional knowledge of GPT-5 ...

What if writing code was as simple as having a conversation? Imagine describing your idea in plain language—no technical jargon, no syntax struggles—and watching it transform into functional, ...

OpenAI is rolling out 'Codex' for ChatGPT, which is an AI agent that automates and delegates programming tasks for software engineers. OpenAI isn't explicitly claiming that Codex will eventually ...

OpenAI’s GPT-5.3-Codex is 25 percent faster and requires less than half the tokens as its predecessor, 5.2-Codex.

OpenAI today released OpenAI Codex, its AI system that translates natural language into code, through an API in private beta. Able to understand more than a dozen programming languages, Codex can ...

OpenAI has launched a new Codex desktop app for macOS that lets developers run multiple AI coding agents in parallel, ...

OpenAI’s Codex app for macOS lets developers manage multiple agents, automate tasks, and extend workflows with skills ...