Nebius, the AI cloud infrastructure giant that emerged from Yandex’s ashes, is in active talks to acquire Israeli AI startup AI21 Labs, according to The Information. The move comes after a previously reported $2-3 billion acquisition deal between AI21 and Nvidia fell through earlier this year.
This is a significant pivot for AI21 Labs, a company that seemed headed for Nvidia’s orbit just months ago. Israeli media reported in late 2025 that Nvidia was in advanced talks to snap up the Tel Aviv-based startup for up to $3 billion, primarily as a talent play to bring roughly 200 AI researchers and engineers in-house. But by January 2026, AI21 denied those reports, and co-founder Amnon Shashua confirmed to Bloomberg that while talks had occurred, nothing was “close to maturity.”
Now Nebius has entered the picture as the new suitor.
Why Nebius Makes Sense
Nebius isn’t some scrappy startup. Founded by Yandex creator Arkady Volozh after the $5.4 billion divestiture of Yandex’s international assets, the company has become one of the fastest-growing AI infrastructure players on the planet:
- $2.7 billion in cumulative Nvidia investment ($700M in December 2024, $2B more in March 2026)
- $27 billion infrastructure deal with Meta for dedicated AI compute capacity
- $19.4 billion agreement with Microsoft for AI infrastructure
- Market cap north of $30 billion, with stock up over 400% in the past year
Buying AI21 would give Nebius something it doesn’t currently have: its own AI models and a team of world-class NLP researchers. That’s the strategic logic. Nebius sells GPU compute to companies training AI models. Owning a model-building team would make Nebius a more vertically integrated player, similar to how cloud providers like Google and Amazon also develop their own foundation models.
What AI21 Brings to the Table
AI21 Labs, founded in 2017, has carved out a niche in enterprise AI with its Jamba model family. Jamba is notable for its hybrid architecture that combines Transformer and Mamba (Structured State Space Model) technologies. The practical result: models that handle up to 256K context windows with significantly lower memory footprints than pure Transformer competitors.
The company has raised $336 million from investors including Nvidia, Intel, and Google. Its product lineup includes the Jamba enterprise LLMs, Maestro (an AI orchestration system), and Wordtune (an AI writing assistant).
But AI21 has struggled to compete for mindshare against OpenAI, Anthropic, and Google DeepMind. An acquisition could be the outcome that makes the most sense for both sides.
What This Signals
The Nvidia-to-Nebius buyer swap tells a broader story about how AI acquisitions are shifting. Nvidia, facing increased regulatory scrutiny over its dominant position in AI chips, may be pulling back from large model-company acquisitions. Meanwhile, well-funded infrastructure companies like Nebius are stepping in as buyers.
No deal terms have been disclosed, and talks could still fall apart. But if Nebius closes this, it would mark one of the largest AI acquisitions of 2026 so far and signal that the “neocloud” companies aren’t content just renting GPUs. They want to own the AI stack from silicon to software.
More details are available in the original report from The Information.