Vitalik Buterin Says AI Becomes the New UI for Ethereum (ETH) After a 5-Minute ENS Update

AI as Ethereum's Next Interface

Vitalik Buterin, the co-founder of Ethereum (ETH), used a public appearance at the OKX NOW 2026 summit in Singapore to argue that artificial intelligence is simultaneously the biggest opportunity and the biggest risk facing blockchain technology today. In remarks circulated on 2026-10-06, he predicted that AI is likely to become the new user interface for on-chain activity, replacing the websites and apps most people use to interact with blockchains. The talk carried no comment on the Ethereum (ETH) price; it stayed on technology, security and where he sees the stack heading.

His most concrete example came from his own desk. Roughly one month before the summit, Buterin said, he updated his ENS record for the first time without ever opening a traditional front end. He asked a locally running AI agent to write the script, and the agent completed the update in about five minutes. For readers new to the naming layer, our guide to getting a .ETH domain explains the system behind that update. In his view this becomes the norm: complex blockchain operations executed by an agent, with no conventional interface involved. Buterin framed the shift as a trade. If transactions flow directly through AI rather than through a downloaded web front end, the layer where many attacks have historically landed could thin out; he described front-end compromise, a malicious or hijacked interface sitting between a user and the chain, as the class of risk that shrinks. At the same time he was explicit that a new set of problems arrives in its place: whether the AI itself can be trusted, whether it genuinely understands the transaction it is signing, and whether its inputs can be manipulated. His stated position is that both halves of that trade are real, and that builders in the Ethereum ecosystem have to plan for the second half, not only the first.

Two-Year Outlook: Cheaper, More Private Transactions

Much of the address rested on what he called programmable data. With zero-knowledge proofs, the cryptography that underpins Layer 2 rollups, a user can prove a fact about an asset or about themselves without publishing the underlying information, and Buterin argued this capability becomes more valuable precisely when AI systems are sweeping up personal data at scale. He expects these techniques to mature quickly, predicting that within two years most people will have used one of them without realizing it.

His two-year outlook for Ethereum (ETH) followed from that: transactions that are considerably cheaper, meaning lower gas fees, and meaningfully more private than today, with AI more deeply embedded in on-chain applications. Counterparties, he said, are already often bots; within two years the applications themselves may be written by bots, and the traditional idea of an app may dissolve into agents posting and evaluating offers on-chain. That shift reaches beyond finance, touching how personal data is protected from the operating system up to AI crypto wallets. On security, he cited the Safe wallet breach, one of the largest incidents in the sector at roughly $1.4 billion in losses, as an attack on the layer between the blockchain and the user rather than on a smart contract or on-chain code. If AI executes transactions directly, that layer may disappear, but prompt injection, an AI misreading the intent behind a transaction, and hardware trust all move up the queue. He also noted that neither the Ethereum (ETH) network nor the Bitcoin network went down while AI-driven attacks escalated this year, and that AI is already helping the protocol surface vulnerabilities. He described today's hardware wallets as likely candidates to become general-purpose security devices, and closed with a formulation he expects to replace the old maxim: “not your keys, not your coins” may evolve into “not your silicon, not your keys.”

Not Your Silicon, Not Your Keys

COINOTAG's reading: the load-bearing document here is the public speech transcript itself, not a filing, and it says something narrower than the headlines suggest. Buterin did not predict an AI takeover of Ethereum; he described a five-minute ENS update he personally performed and argued outward from it. The two-year timeline for cheaper, more private transactions is his estimate, not a protocol roadmap, and the transcript gives no technical basis for that date. Whether AI-as-interface strengthens or weakens the security stack is left standing in his name: a trade builders must weigh, framed by his own line, “not your silicon, not your keys.”