Private AI Funding Fell From $226 Billion in Q1 to $103.3 Billion in Q3

Funding tallies for private AI companies fell for two straight quarters in 2026, reaching $103.3 billion in Q3 after a $226 billion first-quarter total that included a major OpenAI commitment.

The Q1 figure was roughly level with the $225.8 billion counted for all of 2025. OpenAI announced $122 billion in committed capital at an $852 billion post-money valuation, accounting for 54% of the quarter’s AI funding. The company described the amount as committed capital; its announcement did not say it had all been paid at once.

Funding fell to $153.1 billion in Q2, then dropped 33% to $103.3 billion in Q3. Three Anthropic mega-rounds totaling $65 billion drove much of the second-quarter tally. In Q3, 154 mega-rounds made up 85% of AI funding.

The third quarter also saw 42 companies reach billion-dollar valuations, the highest quarterly count in 18 months. The number of AI deals reached an 18-month low during the same quarter, even as the count of billion-dollar valuations rose.

Annual comparisons depend on what each measure includes. AI accounted for 48% of the $469 billion in global venture funding in 2025. Other measures put 2025 AI-related venture funding at $211 billion, private AI-company funding at $225.8 billion and AI venture investment at $258.7 billion. The figures cover different funding pools and should not be treated as interchangeable estimates.

A separate measure put private AI investment at $344.66 billion in 2025. A broader corporate-investment total reached $581.69 billion because it also included acquisitions, minority stakes and public offerings. These wider categories capture activity beyond funding for private AI companies.