ChatGPT mobile app adds Codex support for cross-device collaboration
OpenAI Devs says the ChatGPT mobile app now supports Codex, letting users ask questions on mobile and continue the same conversation on desktop; the post does not disclose supported platforms, app versions, or rollout scope.
Why it matters: OpenAI Devs is authoritative and HKR-H/K/R pass, but the post only confirms mobile Codex access and handoff; platform, version, and rollout scope are not disclosed, so it sits at the featured threshold.