AI companies captured most of the week's largest venture rounds, led by Baseten's $1.5 billion Series F that valued the San Francisco inference technology provider at $13 billion. The deal marks the company's fourth fundraise in just 18 months, signaling sustained investor appetite for AI infrastructure plays amid the ongoing compute arms race.

Apps Flyer secured over $1 billion in Series E funding at a $2.7 billion valuation, while Groq raised $650 million to scale its cloud-based inference technology. Both deals underscore how major tech platforms—Meta, Google, and reportedly Nvidia—are backing AI specialists even as they compete in the same space. Founders are increasingly selling to the very companies that might otherwise be rivals.

Biotech rounds rounded out the top tier, with Ollin Biosciences pulling in $330 million for ophthalmic therapies and Osanni Bio raising $190 million for similar treatments. Government software provider Peregrine Technologies hit a $6.8 billion valuation after its $250 million Series D, reflecting continued public sector tech investment.

European founders also scored big, with Berlin's Stark raising $569 million in defense tech and Paris-based Alan securing $546 million for health insurance. The week's funding pattern suggests investors are prioritizing proven sectors over experimental plays, allocating capital to companies with clear revenue paths and strategic acquirers already lined up.