OpenAI AI Updates: May 15, 2026

1. Codex lands in the ChatGPT mobile app for iOS and Android

OpenAI. OpenAI made Codex available inside the ChatGPT mobile app on iOS, iPadOS, and Android in preview across all plans including Free and Go, letting users monitor threads, review outputs, approve commands, switch models, or kick off new coding tasks from their phone while the agent runs on a connected Mac mini, devbox, or remote environment. Files, credentials, and permissions stay on the host machine; Windows host support is listed as coming soon, and OpenAI says weekly Codex users now exceed 4 million. Source

2. Sea Limited adopts Codex across its engineering org

OpenAI. OpenAI published a customer story from Sea Limited’s Chief Product Officer David Chen describing how the Singapore-based consumer-internet group deployed Codex across engineering teams to accelerate what it calls AI-native software development in Asia. The piece is positioned as a counterweight to OpenAI’s North America and Europe case studies, framing Codex as a coding agent that travels well across regional engineering cultures and language environments. Source

3. ChatGPT gets context-aware safety improvements for sensitive conversations

OpenAI. OpenAI rolled out safety updates that improve ChatGPT’s ability to recognize subtle, evolving cues of distress or harmful intent over the course of a conversation rather than turn by turn, with a focus on self-harm, suicide, psychosis or mania, and emotional reliance on the model. OpenAI reports the updated model returns responses that fall short of desired behavior 65% to 80% less often across mental-health-related domains, and the update layers on top of the recently introduced Trusted Contact escalation pathway. Source

4. Codex changelog documents the mobile workflow

OpenAI. The Codex changelog added an entry covering the new ChatGPT mobile workflow, with documentation for setup steps, connected-host behavior, security requirements, and troubleshooting for common connection issues between the mobile app and a Codex host. It is the developer-facing companion piece to the mobile launch and the first place to look when onboarding a team to phone-controlled Codex sessions. Source

5. OpenAI reportedly preparing legal action against Apple over Siri/ChatGPT integration

OpenAI. Multiple outlets reported that OpenAI has retained an outside law firm and is preparing options up to and including a breach-of-contract notice against Apple, citing frustration that ChatGPT’s Siri integration has been buried in the iOS experience and has not delivered the subscription growth OpenAI projected when the partnership was signed. Apple, per the reporting, has its own grievances around OpenAI’s privacy posture and OpenAI’s hardware push with former Apple designers. Source