U.S. startup funding in the week of June 18–26 was dominated by artificial intelligence deals, with Baseten's $1.5 billion（約2400億円） Series F marking the largest round.
Nine of the top ten announced funding rounds went to AI companies, particularly those focused on inference infrastructure.
The sustained appetite for AI funding rounds reflects ongoing investor focus on the technology sector.
What happened
Baseten, which provides software to run AI applications, raised $1.5 billion（約2400億円） in Series F funding at a $13 billion（約2.1兆円） valuation. AI-focused deals dominated the week's top 10 largest U.S. funding rounds, with nine of the ten largest rounds going to AI companies.
Why it matters
AI inference technology—the step where an AI produces answers from a trained model—continues to attract the biggest venture checks. Baseten's round was its fourth fundraise in 18 months, signaling sustained investor confidence in AI infrastructure companies.
What to watch
Groq, another AI inference provider, raised $650 million（約1000億円） in the same week. The round came just over six months after Nvidia hired away Groq's founder and key team members and licensed its technology, yet the company secured new backing to scale its cloud infrastructure.
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