Vitalik Buterin Says AI Is Accelerating Ethereum Development

Highlights:

• Vitalik Buterin has explained how AI will be crucial in driving the Ethereum blockchain development.
• The Ethereum co-founder cautioned against over-dependence on AI for coding.
• He said human input remains crucial when developing secure and execution-ready code.

Ethereum co-founder Vitalik Buterin has shared a new insight, explaining how Artificial Intelligence  (AI) could advance the crypto space. In a tweet dated February 28, the co-founder noted that AI is gradually changing how software is built. He said this might help the Ethereum blockchain to expand beyond expectations. 

Explaining his point further, the Ethereum co-founder disclosed that he completed the code to draft Ethereum’s 2030 roadmap in a few weeks using AI tools. He said this would have taken months to complete with other non-AI-powered technologies. Buterin also shared a personal example highlighting how AI has made many repetitive tasks seamless. 

According to him, his blog software version was designed in roughly one hour. He was able to achieve such a feat with an open-source AI model running locally on his personal computer. The co-founder added that he would have completed the task earlier using stronger AI models. While he praised AI speed, the Ethereum co-founder maintained that speed does not equate to perfection. 

Ethereum co-founder Vitalik Buterin said AI is significantly accelerating Ethereum development. He cited a developer who used agentic coding to build a 2030+ roadmap-aligned Ethereum client prototype in two weeks, with ~700,000 lines of code and 65 roadmap items, syncing with…

— Wu Blockchain (@WuBlockchain) March 1, 2026

Buterin Speaks on Error Margins While Using AI for Sophisticated Tasks

The Ethereum co-founder stated that code written very quickly, especially without finalized Ethereum Improvement Proposals (EIPs), has a higher tendency to contain serious bugs. According to him, some parts of the code will be partial versions that will need thorough tests and corrections to meet ideal standards.

Buterin warned developers to cut their expectations for AI. He said they should not expect a simple prompt to produce secure and execution-ready code anytime soon. “There will be lots of wrestling with inconsistencies between implementations. But even that wrestling can happen faster and more thoroughly,” the Ethereum co-founder stressed. 

What AI Should Be Used for

In his tweet, Buterin emphasized balance in the use of AI for coding. He said if AI makes coding twice as fast, developers should dedicate more time to improving security. This means that more time should go into writing more elaborate test cases, running deeper checks, verifying code with math-based proofs, and creating multiple independent versions of the same feature.

The Ethereum co-founder cited an example, using the LeanEthereum project. Using AI, a contributor succeeded in drafting a machine verification proof for STARK technology, an essential component of the blockchain. “A core tenet of LeanEthereum is verification, and AI is greatly accelerating our ability to do that,” he added. 

This is quite an impressive experiment. Vibe-coding the entire 2030 roadmap within weeks.

Obviously such a thing built in two weeks without even having the EIPs has massive caveats: almost certainly lots of critical bugs, and probably in some cases "stub" versions of a thing… https://t.co/ZlTg0r2hvI

— vitalik.eth (@VitalikButerin) February 28, 2026

Emphasis Should be on More Testing and Proof

While formal verification is important, Buterin emphasized that it should not be the only benefit of AI. According to him, AI can also generate a large number of tests, exceeding humans’ capacity and increasing the chances of identifying hidden problems early. The Ethereum co-founder, however, cautioned against overconfidence. He explained that AI-generated code will not be perfectly secure on the first try. Developers must review and compare different versions carefully before execution.  

Because of these advancements, Buterin hinted that Ethereum’s long-term roadmap could be completed sooner than expected. More importantly, it will be delivered with stronger security standards that beat the expectations of many. “On the security side, I am excited that bug-free code, long considered an idealistic delusion, will become possible and then a basic expectation,” he added. 

Overall, Buterin admitted that total security is impossible. In addition, he noted that perfect alignment between human intent and code cannot fully exist. However, he believes that in many cases, clear security claims can be made, tested, and proven. He added that stronger verification is not just about cleaner code but about trust, which AI could help bring closer to reality.