API Changelog

New guide covers prompting realtime voice agents, including Realtime 2 reasoning, preambles, tools, and exact entity capture.

The OpenAI Developers plugin for Codex is now available, enabling users to set up project API keys and troubleshoot OpenAI API issues directly within Codex.

Review Responses API settings for production quality, latency, cost, reliability, and data handling.

Overview of new Codex app updates for working across tools, apps, automations, and more developer workflows.

Cookbook to craft effective video prompts for Sora 2 generation.

Codex models advance the frontier of intelligence and efficiency and our recommended agentic coding model. Follow this guide closely to ensure you’re getting th

Intro walkthrough of the Codex app and its core workflows.

Walkthrough of how to use Codex inside your JetBrains IDEs.

Quickstart for connecting to OpenAI's developer docs MCP server from common editors. - mcp, tools, docs

Cookbook to prompt gpt-image-1.5 for reliable image generation results.

Cookbook to prompt GPT-5.2 for accurate, concise enterprise workflows.

Cookbook to transcribe user audio using out-of-band Realtime sessions.

Cookbook to modernize legacy codebases using the OpenAI Codex CLI.

Shows Codex pairing with developers to triage diffs, leave inline suggestions, and merge confidently. — codex, code review

Shows Codex Cloud turning sketches and photos into responsive interfaces. — codex, frontend

Shares lessons from teams shipping real software with Codex end-to-end. — codex, product delivery

Shows how to pair Codex with leading editors and streamline in-editor workflows. — codex, IDE extension

Runs through hands-on demos of toolchains that supercharge coding velocity. — agents, tool calling

Discusses context strategies for letting Codex-style agents collaborate in Cursor. — agents, context windows

Explores multimodal pipelines that link video, image, and code generation tools. — creative workflows