Openai

Codex CLI
OpenAI's open-source terminal coding agent — reads and edits a local repo, runs commands, and executes multi-step tasks from …
Tools
Codex Skills System
OpenAI Codex's built-in support for SKILL.md skills, discovered from ~/.codex/skills/ and installable via $skill-installer from a curated …
Skills
GPT-5.6 Sol
OpenAI's most capable model — the top tier of the GPT-5.6 family, built for frontier coding, cybersecurity, and enterprise knowledge work.
Models