OpenAI are quietly adopting skills, now available in ChatGPT ...
7 hours ago · OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI One of the things that most excited me about Anthropic’s new Skills mechanism back in October is how easy it …
OpenAI Launches Anthropic‑Style ‘Skills’ System for ChatGPT
7 hours ago · OpenAI’s new “skills” system enables developers to package reusable AI capabilities as simple markdown folders, making them instantly usable in ChatGPT, the Codex CLI, and other …
Simon Willison’s Weblog
1 day ago · It turns out OpenAI are doing exactly that, with skills support quietly showing up in both their Codex CLI tool and now also in ChatGPT itself. I learned about this from Elias Judin this morning. It …
How OpenAI is using GPT-5 Codex to improve the AI tool itself
9 hours ago · “The vast majority of Codex is built by Codex,” OpenAI told us about its new AI coding agent.
GPT-5.1-Codex-Max Prompting Guide - cookbook.openai.com
Dec 4, 2025 · This prompt began as the default GPT-5.1-Codex-Max prompt and was further optimized against internal evals for answer correctness, completeness, quality, correct tool usage and …
How to Use ChatGPT Codex from OpenAI - DEV Community
Jun 12, 2025 · A few weeks ago, OpenAI announced that Codex is available for Plus users, and I didn't miss a chance to try it. And today, I'm excited to share a guide to OpenAI's Codex.
What Do OpenAI & Anthropic's New 'Vibe Coding' Tools Actually Do?
Jun 13, 2025 · Unlike Anthropic's API, Codex users access Codex through a ChatGPT sidebar. Using this familiar chatbot format, programmers can either type prompts directly into Codex and click...