AI startups secure over half of 2025 global venture funding, crossing $310 billion mark

Artificial intelligence startups accounted for more than 50% of total global venture capital raised in 2025, amassing $310 billion through Q3—the highest annual total since 2022. U.S.-based companies led the surge, driven by record-scale rounds for OpenAI, Anthropic, and Mistral AI. Analysts attributed the funding spike to institutional investors repositioning portfolios around AI infrastructure, compute hardware, and autonomous agent systems. The report also highlighted early-stage growth in Europe and India. Industry experts warned, however, of valuation overheating as deal sizes ballooned across generative and foundational AI model startups.