AI startups captured 41% of all venture capital in 2025 — and returns are strong

New data from Carta shows that AI startups accounted for 41 percent of the $128 billion invested via the platform in 2025 — a record high. And unlike many previous tech booms: the returns are actually solid.

The numbers

According to Carta's Q4 2025 report:

• AI startups: 41% of total VC investment in 2025
• Total investment: $128 billion
• 10% of startups received 50% of the capital

The biggest winners were companies like Anthropic ($30B Series G, $380B valuation), OpenAI ($110B round in February 2026), and xAI ($20B Series E in January 2026).

More capital, fewer companies

"Fewer bets, but more capital. AI startups raise larger rounds not because they have many employees — they don't — but because the cost of running AI models is high," says Peter Walker, head of insights at Carta.

The venture market has become K-shaped: capital concentrates with a handful of top funds backing a small number of companies. Everyone else fights for scraps.

What's next?

OpenAI, Anthropic, and xAI are all signaling IPOs in 2026 — something that has investors salivating. Energy tech is emerging as the next big AI investment theme, according to TechCrunch, as data centers consume gigawatts of power.

CIO relevance

Consolidation means the leading AI platforms — Claude, GPT, Gemini — will likely only grow stronger and more capital-intensive. Smart organizations should consider a multi-vendor strategy now, before lock-in becomes irreversible.