AI startups announced about $2.6 billion in primary funding rounds above $20 million between September 28 and October 5, 2026. The total came from 10 deals, and Instinct’s $1 billion Series C made up 38% of it.

The largest transaction of the week was an acquisition. AMD agreed to buy Fei-Fei Li’s World Labs for about $8.2 billion in stock.

All 10 primary rounds went to US-headquartered companies. Europe’s two notable items were not new startup rounds: ElevenLabs employees sold $300 million of existing shares at a $22 billion valuation, and London-based DIG Ventures closed a $120 million fund to invest in early-stage AI infrastructure startups.

No AI deal above $20 million was confirmed in India, China, the Middle East, Latin America or Africa during the window.

AI funding this week: growth and early-stage rounds

The table lists every confirmed AI round above $20 million in the window, ordered by amount. Amounts were announced in US dollars, so no currency conversion applies.

Instinct and EliseAI set the pace for AI application funding

Instinct raised its $1 billion Series C 33 days after a $250 million Series B at a $2.5 billion valuation, according to Tech Funding News. The company has not published revenue or user figures.

The round places Instinct among the most valuable AI agent startups by funding and valuation. Its product runs on text and phone, with no mobile app yet.

EliseAI reported $200 million in annual recurring revenue as of June 2026. Its $4 billion valuation nearly doubles the $2.2 billion set at its Series E in August 2025.

Secondary sales and cybersecurity rounds

The ElevenLabs deal was an employee tender, so proceeds went to selling shareholders rather than the company. The $22 billion price doubles the valuation from its $500 million Series D in February.

Armadin’s $255.5 million Series B valued the year-old cybersecurity company at more than $2.5 billion. Andreessen Horowitz co-led the round, its second lead in this digest after EliseAI.

AI infrastructure funding: compute, chips and optics

Five of the 10 rounds went to infrastructure below the model layer. Together they raised $637 million.

GMI Cloud said its contracted annual recurring revenue passed $600 million. CScale and Volantis both use optical links, one between racks and one between compute and memory.

SiMa.ai’s valuation rose from $960 million after its July 2025 Series B to $1.45 billion, The Next Web reported, citing PitchBook data. Clockwork.io’s latest round brings its total funding to $73 million.

AI startup funding by sector this week

The chart groups the 10 primary rounds by sector. The ElevenLabs secondary is excluded because no new capital went to the company.

AI funds and acquisitions announced this week

One acquisition and one fund close above $20 million met the criteria. Supabase also agreed to acquire Turso, but did not disclose a price.

World Labs is AMD’s second-largest acquisition after Xilinx, according to Yahoo Finance. AMD and Nvidia both took part in World Labs’ $1 billion round in February 2026.

DIG Ventures’ Fund III is 20% larger than Fund II and backs areas such as data, identity, compliance and orchestration. Earlier portfolio companies include Dash0, Taktile and Nexos.ai.

Regional AI funding activity outside the US

Indian startups raised $233.6 million across 16 deals from September 28 to October 2, according to Inc42. None was an AI round above $20 million; the largest, Simple Energy’s $180 million, was an EV deal.

Latin American startups raised $110.4 million in week 40, led by fintech Jeeves, per Techloy. The only AI deal listed was an undisclosed angel round.

Middle East coverage on Wamda showed early-stage AI deals below $2 million in the window. No qualifying AI round surfaced for China, the rest of Asia-Pacific or Africa. China’s National Day holiday ran through most of the period.

FAQ

Trends in this week’s AI funding

• AI infrastructure took five of 10 rounds and $637 million. Two of those deals (CScale and Volantis) focus on optical links, and Nvidia invested in GMI Cloud and CScale.
• A small group of investors repeated across deals. Atreides and Valor co-led General Intuition and CScale, Andreessen Horowitz led EliseAI and Armadin, and Premji Invest backed CScale and Clockwork.io.
• Valuations reset within months. Instinct rose 4x in about a month, General Intuition about 2.7x in three months, and ElevenLabs 2x since February, a pattern also visible in our ranking of the top AI funded startups.

Sources

[1], [2], [3], [4], [5], [6], [7], [8], [9], [10]