Inference-Driven AI Infrastructure Spending to Grow 55% in 2026. AI-Optimised IaaS Spending to Increase 56.5% in 202711 August 2026 — Worldwide AI-optimised infrastructure as a service (IaaS) spending is projected to grow 96% in 2026, reaching $42 billion, according to Gartner, Inc., a business and technology insights company. Fifty-five percent of AI-optimised IaaS spending is forecast to support inference in 2026 and is set to reach 59% in 2027. Additional Insights AvailableGartner clients can read more in Forecast Analysis: AI-Optimised IaaS, Worldwide, 2026. About GartnerGartner, Inc. (NYSE: IT) delivers actionable, objective business and technology insights that drive smarter decisions and stronger performance on an organisation's mission-critical priorities.