OpenAI Codex hits general availability with new Slack integration October 6, 2025 by admin Tweet At DevDay 2025 today, OpenAI has announced that its Codex coding agent is finally ready for prime time, with some big upgrades. Read more… Neowin Related Posts:OpenAI Codex gets a major update, now also available…OpenAI announces significant updates to Codex and…Microsoft takes on OpenAI Codex with the new GitHub…OpenAI announces Codex, a cloud-based software…OpenAI announces GPT‑5.1-Codex-Max, a new coding…