AI Round-up: May 15, 2026

Codex mobile preview led the snapshot: OpenAI announced Codex in the ChatGPT mobile app, with Reuters coverage, official developer posts, Reddit reaction and creator videos all circling the same shift towards controlling coding agents away from the desktop. The coding-agent thread broadened through Sea's Codex case study, GitHub's Copilot app preview and xAI's Grok Build beta, while Perplexity, Replit, Databricks and Together AI pushed agent and data-workflow updates across X.

Anthropic's day split between enterprise expansion and policy positioning: Claude's PwC deployment and Gates Foundation commitment sat alongside a 2028 US-China AI leadership paper that drove Reddit discussion. Microsoft supplied the security layer with defence-in-depth and AI-app misconfiguration guidance, while arXiv's LLM-error ban, OpenAI-Apple legal coverage and Musk v Altman trial updates rounded out a snapshot centred on agents moving into more controlled production and mobile workflows.