Codex, the recently launched AI coding assistant from OpenAI, has received a big update. The company has added a bunch of new features to make Codex feel more like a true coding collaborator, extending its reach across IDEs, GitHub, and the command line, all powered by GPT-5.
We’re releasing new Codex features to make it a more effective coding collaborator:
— OpenAI Developers (@OpenAIDevs) August 27, 2025
– A new IDE extension
– Easily move tasks between the cloud and your local environment
– Code reviews in GitHub
– Revamped Codex CLI
Powered by GPT-5 and available through your ChatGPT plan.
Codex Now in Your IDE
This has been the most requested update and is finally here. Codex can now run directly inside IDEs. OpenAI has released a new extension for VS Code, Cursor, and related forks. It now allows developers to share context, including files, snippets, and diffs.
Furthermore, the company has also introduced smooth task handoffs between local and cloud environments. This means developers can start work in the editor, push it to the cloud for progress, and then bring it back to their IDE to continue building, without losing context.
Another big addition is Codex’s ability to conduct pull request reviews. Unlike static analysis tools, Codex checks PRs against their intent, reasons across codebases and dependencies, and can even run code to validate changes. Developers can configure it to auto-review all new pull requests or summon Codex directly by tagging it in a repo.
Revamped Codex CLI
OpenAI has also rebuilt the Codex CLI with GPT-5’s agentic coding capabilities. The updated terminal interface is more reliable and comes with new tools, including image inputs, message queuing, simplified approval modes, to-do lists, and built-in web search. It allows Codex to operate as one agent across IDEs, terminals, GitHub, the cloud, and even mobile, tied together through a user’s ChatGPT account.
When it comes to the availability part, all these new Codex capabilities are included in OpenAI’s Plus, Pro, Team, Edu, and Enterprise plans. Developers can explore the updates via the new Codex developer hub.
However, this is not the only update from OpenAI in recent times. A couple of days ago, the company announced a bug bounty program for GPT-5, offering payouts of up to $25,000. The program challenges researchers to discover a universal jailbreak prompt capable of bypassing safeguards around sensitive bio and chemistry questions.
