Nebius Eyes AI21 Labs in Bold Pivot from Hardware to Software

Nebius shares surged 21% to a 52-week high on reports of advanced talks to buy AI21 Labs, a key move in its shift from GPU rental to a full-stack AI platform.

Nebius shares surged more than 21% last week, closing Friday at $144.97 and hitting a new 52-week high. The rally was fueled by reports that the AI infrastructure provider is in advanced talks to acquire Israeli startup AI21 Labs, a company previously pursued by chip giant Nvidia. The potential deal underscores a high-stakes strategic shift for Nebius as it seeks to transform its core business model.

The company is aggressively moving beyond its roots as a pure provider of rented graphics processing unit (GPU) capacity. Its ambition is to become a full-stack artificial intelligence platform, offering higher-margin software and services to compete with giants like Microsoft, Amazon, and Google. The acquisition of AI21 Labs, with its 200-person research team and established language models, would be a cornerstone of this plan. This follows Nebius's recent purchase of startup Tavily for up to $400 million, aimed at building a unified platform for developing AI agents.

Financing this ambitious expansion presents a significant challenge. While Nebius reported staggering revenue growth of 500% and holds cash reserves of $3.68 billion, it also carries substantial debt of $4.89 billion. A potential acquisition of AI21 Labs—currently valued at $1.4 billion—would add to this financial burden. Furthermore, management has committed to a massive $16 to $20 billion investment in new data centers. The company aims to scale its attached power capacity from 170 megawatts by the end of 2025 to up to one gigawatt by the close of 2026, a near fivefold increase critical for operational execution.

The dynamics of the potential deal are complicated by Nvidia's involvement. The semiconductor leader, which previously walked away from talks to buy AI21 Labs at a reported valuation of $2 to $3 billion, is a financial backer of both Nebius and the Israeli startup. These cross-holdings highlight the deeply interconnected nature of AI infrastructure financing.

Wall Street has responded positively to the company's aggressive posture. Trading volume spiked, with nearly 26 million shares changing hands on Thursday alone. Analysts have also taken note; the average price target for Nebius stock was recently raised by over 18% to $169.72, with the majority of observers maintaining a buy rating. Cantor Fitzgerald initiated coverage with an outperform recommendation and a $129 price target.

However, risks abound. AI21 Labs has struggled to achieve broad market adoption for its language models against entrenched competitors. Nebius must prove it can successfully integrate the startup and create products that resonate with customers. The coming days will be pivotal, as any official statement regarding the acquisition talks—or their potential collapse—could dictate near-term share price movement. The company's ability to manage its soaring debt while executing on colossal capital expenditure plans remains the central gamble in its software-centric transformation.