Say Hello to GPT-5.3-Codex
GPT-5.3-Codex is a Codex-native AI coding agent built from the ground up for long, real-world engineering tasks. Unlike chatbots adapted for code, it combines frontier-level coding performance with ge…
Codex
Inside the Codex harness: building the App Server
The Codex App Server lets developers embed an AI coding agent directly into their applications via a bidirectional JSON-RPC API. Unlike one-shot prompt services, it supports ongoing conversations wher…
Expanding Codex and Sora availability: moving past rate restrictions
This article explains how OpenAI manages ongoing access to Sora and Codex using three pillars: rate limits, usage tracking, and credits. It shows how real-time monitoring replaces hard cutoffs, offeri…
Meet the Admin plugin for ChatGPT Work and Codex
The Admin plugin for ChatGPT Work and Codex unifies workspace administration into a single conversational interface. Admins can analyze usage patterns, manage members and roles, fine-tune permissions,…
Codex is evolving into a productivity tool accessible to everyone
OpenAI's Codex is reshaping knowledge work by moving from answering questions to completing multi-step tasks. The Next Era of Knowledge Work report shows how AI agents accelerate research, make data a…
Codex can handle just about anything
The updated Codex desktop app for macOS and Windows transforms the AI coding assistant from a chat tool into a full desktop assistant. New features include computer use for operating your machine dire…
OpenAI set to buy Ona
OpenAI announced plans to acquire Ona, whose secure, persistent cloud environments will strengthen its Codex coding agent. The deal addresses a key limitation of agentic coding—ephemeral sessions that…
Simplex reinvents software development through Codex
Software company Simplex integrated ChatGPT Enterprise and Codex into its engineering workflow to cut development time. ChatGPT Enterprise supports design exploration, documentation, and code assistan…
Polimill develops Japan's next-generation public AI platform
Polimill is a Japan-focused AI platform for municipalities, built on OpenAI's GPT models and Codex. It lets local government staff query internal administrative documents in natural language, reducing…
OpenAI recognized as a Leader in enterprise coding agents in Gartner report
Gartner's 2026 Magic Quadrant for Enterprise AI Coding Agents names OpenAI a Leader, highlighting Codex's innovation and enterprise-scale deployments. The article explains what Leader placement means,…
Cisco teams up with OpenAI to transform enterprise engineering through Codex
Cisco has partnered with OpenAI to deploy Codex, an advanced coding agent, across its engineering organization. The collaboration drives AI-native development, speeds up Cisco AI Defense product devel…
How Codex helped Wasmer create a Node.js runtime for edge environments
Wasmer leveraged Codex with GPT-5.5 to build a Node.js-compatible runtime for edge environments, completing in weeks what traditionally takes months or years. By integrating AI agents into their core …
How an astrophysicist leverages Codex to simulate black holes
Astrophysicist Chi-kwan Chan uses OpenAI's Codex to accelerate black hole simulations, leveraging AI to write code, debug, and handle routine engineering while focusing on the physics. His work tests …
Going all-in on Codex for extended, long-duration tasks
This article explains how AI consultant Jason Liu uses Codex for extended, long-duration projects. Rather than treating it as a one-shot answer machine, he treats it as a project partner: persistent d…
AutoScout24 boosts engineering capabilities through AI-driven workflows
AutoScout24 Group integrated Codex and ChatGPT into daily engineering workflows to speed up development, reduce repetitive tasks, and improve code quality. AI tools accelerate boilerplate creation, de…
Creating Codex-powered tax agents that improve themselves
OpenAI, Thrive Capital, and Crete Professionals collaborated to build a self-improving AI tax agent powered by Codex. The system automates tax preparation tasks like data extraction, rule application,…
How Codex helps Braintrust transform customer requests into code
This article explores how Braintrust leverages OpenAI's Codex to convert customer requests directly into working code. By integrating Codex into their engineering workflow, the team accelerates featur…
How one scientist leverages Codex and ChatGPT to discover novel antimicrobial compounds
César de la Fuente's team applies Codex and ChatGPT to treat DNA and proteins like language, mining genomes—including those of extinct organisms—for antimicrobial peptides that can kill drug-resistant…
How RingCentral creates AI-native operations across engineering and ops
RingCentral pairs ChatGPT Work and Codex to build AI-native operations. ChatGPT Work serves as a shared workspace centralizing operational knowledge for engineering and ops teams, while Codex accelera…
OpenAI teams up with Dell to deliver Codex for hybrid and on-premises enterprise deployments
OpenAI and Dell have announced a partnership to bring the Codex AI coding agent into hybrid and on-premises enterprise environments. The deal lets organizations in regulated industries run Codex withi…