Overview
- OpenAI released a native Codex app for Windows with OS-level sandboxing, restricted tokens, optional WSL support, and Windows-specific skills like WinUI, and it is available across all ChatGPT tiers after a 500,000‑developer waitlist.
- The company reports more than 1 million desktop downloads following the Mac debut and says Codex now has 1.6 million weekly active users.
- OpenAI says weekly token consumption in Codex has increased fivefold since the GPT‑5.3‑Codex rollout in early February.
- Codex defaults to GPT‑5.3‑Codex but lets users switch among GPT‑5.x and Codex variants with adjustable reasoning levels and agent autonomy.
- Enterprise adoption includes deployments at Cisco, Nvidia, Ramp, Rakuten, and Harvey, as OpenAI faces criticism over a Pentagon deal and stronger competitive momentum for Anthropic’s Claude reported in app rankings and Ramp invoice data.