OpenAI Makes Codex Generally Available with New Slack Integration, SDK and Admin Tools

OpenAI has announced that Codex, its AI coding assistant, is now generally available and rolling out new features designed to make it more useful for engineering teams.

Among the new capabilities: a Slack integration that lets you ask Codex questions or assign tasks directly via team chats, a Codex SDK for embedding the agent into your own tools and workflows, and admin features giving workspace managers better control over environments, monitoring, and analytics.

OpenAI says Codex usage has grown over tenfold since early August and that GPT-5-Codex has handled more than 40 trillion tokens in just three weeks.

The company reports that leading organizations — from Cisco to Instacart — are already using Codex. Cisco engineers, for example, have cut code review times by up to 50% using Codex, while Instacart uses it to automate things like code cleanup and repetitive changes.

In terms of availability, the Slack integration and SDK are being made available today to users with ChatGPT Plus, Pro, Business, Edu, and Enterprise plans, while the admin controls will roll out for Business, Edu, and Enterprise tiers. Codex cloud tasks will start counting toward usage beginning October 20, with pricing details set to be published soon.

OpenAI sees this general availability as a major step in making Codex a central coding collaborator—from your editor and terminal to cloud workflows—all tied to your ChatGPT account.