Nebius Pays $275 Million for Tavily, Betting That AI Agents Need Their Own Search Engine

The ex-Yandex AI cloud company acquires a one-year-old Israeli startup to bring real-time web search into its platform for autonomous AI agents.

Nebius Group, the Amsterdam-based AI cloud company that spun out of Yandex in 2023, is acquiring Israeli startup Tavily for $275 million in cash. The deal could reach $400 million if Tavily hits certain milestones, according to Calcalist. It’s expected to close within weeks.

Tavily builds search infrastructure specifically for AI agents - the software layer that lets autonomous systems pull real-time data from the web, verify facts, and avoid hallucinating outdated information. The company was founded in 2024 and had raised just $25 million before the acquisition, including a $20 million Series A last August led by Insight Partners and Alpha Wave Global.

What Tavily Actually Does

When an AI agent needs to check a stock price, verify a legal citation, or confirm that a company still exists, it can’t rely on the training data baked into a language model. It needs live web access. That’s what Tavily provides: an API that combines high-performance search, intelligent web crawling, and structured data extraction, all formatted to slot cleanly into an LLM’s context window.

The product has gained traction through developer adoption rather than enterprise sales teams. Tavily reports more than 3 million monthly SDK downloads and a developer community exceeding one million users. Its customer list includes IBM, Cohere, Groq, MongoDB, Monday.com, LangChain, and Amazon Web Services.

Why Nebius Wants It

Nebius has been building what it calls a “complete platform” for companies deploying AI agents. Its Token Factory handles inference at scale - the raw compute that lets agents reason through tasks. But reasoning alone isn’t enough. Agents also need grounded, up-to-date information.

“We’re not just an infrastructure-as-a-service company - we’re building the complete platform,” said Roman Chernin, Nebius co-founder. The pitch is vertical integration: developers can build, tune, and run autonomous agents on one platform without stitching together third-party services for compute, inference, and now search.

The timing aligns with a broader industry bet on agentic AI. Analysts project the market for AI agents will grow from roughly $7 billion in 2025 to somewhere between $140 and $200 billion by the early 2030s, driven by enterprises automating tasks that currently require human judgment and real-time information.

Market Context

The acquisition comes during an intense period of consolidation in AI infrastructure. Big Tech is pouring hundreds of billions into data centers and compute. But the emerging agentic AI stack has gaps that pure compute can’t fill - agents need to interact with the live web, not just process static data.

Tavily’s CEO Rotem Weiss and the rest of the team will join Nebius but continue operating under the Tavily brand, serving existing customers while scaling on Nebius’s global infrastructure.

What to Watch

The deal signals that “agentic search” is becoming its own category, distinct from both traditional web search and the retrieval-augmented generation (RAG) pipelines that many companies have cobbled together in-house. If Nebius can make Tavily’s search a default component of agent deployments on its platform, it creates a sticky dependency that goes beyond commodity compute.

The open question is whether a single-platform approach wins, or whether developers prefer assembling best-of-breed tools. Tavily’s organic adoption suggests developers already trust the product. The test is whether that trust survives being bundled into a larger platform play.