According to The Rundown AI, OpenAI has officially introduced advertisements to ChatGPT, signaling a shift towards monetization within large language models (source: The Rundown AI, Jan 19, 2026). Additionally, OpenAI’s Codex now enables users to write and deploy code directly from their phones, expanding practical AI coding applications for businesses and developers. The platform also highlighted four new AI tools and showcased innovative community workflows, underlining rapid ecosystem growth. Meanwhile, public disputes between Elon Musk and OpenAI continue to draw industry attention, potentially impacting future AI governance and partnerships. These developments present new business opportunities in AI-driven advertising, mobile software development, and workflow automation.