Gartner Predicts by 2028, Explainable AI Will Drive LLM Observability Investments to 50% for Secure GenAI Deployment Gartner, Inc., a business and technology insights company, predicts that by 2028, the growing importance of explainable AI (XAI) will drive large language model (LLM) observability investments to 50% of GenAI deployments, March 30, 2026 News/Technology News