Vitalik Buterin has a message for the Ethereum community: don’t become OpenAI.
In his keynote address at EthCC 2025 on July 2 in Cannes, France, Ethereum’s co-founder delivered a pointed warning about the dangers of centralization slowly infecting the crypto ecosystem. The speech, held at the Palais des Festivals, laid out a vision for Ethereum that prioritizes meaningful decentralization, user sovereignty, and resilience over growth-at-all-costs thinking.
The comparison to OpenAI wasn’t subtle. A company that started as an open, nonprofit research lab has transformed into one of the most powerful and increasingly closed AI corporations on the planet. Buterin sees that trajectory as a cautionary tale, not a playbook.
The specific risks Buterin flagged
This wasn’t a vague philosophical lecture. Buterin got granular about the threats he sees lurking inside the Ethereum ecosystem right now.
First on his list: upgradeable Layer-2 solutions that can be instantly modified. The convenience of instant upgrades comes with a trade-off that most users don’t think about. If a Layer-2 operator can change the rules on the fly, users are essentially trusting a single entity with their assets.
He also took aim at server-side decentralized applications, or dApps that look decentralized on the surface but rely on centralized server infrastructure underneath.
Then there’s the governance problem. Buterin called out token-vote governance auctions, where governance power effectively goes to the highest bidder.
His proposed litmus test for evaluating any Ethereum project was elegantly simple: would users still have access to their assets if the company behind the project disappeared tomorrow? Or if insiders launched an attack? If the answer is no, the project isn’t truly decentralized.
Privacy and censorship resistance aren’t optional features
Buterin was equally direct about privacy and censorship resistance. These shouldn’t be add-ons or premium features bolted on after launch. They need to be baked into the foundation.
Buterin’s position is that the Ethereum ecosystem should maintain open-source principles and pursue diverse funding models rather than concentrating power and resources in a few dominant players.
“We don’t want just to succeed. We want to be worthy of succeeding.”
Why this speech matters right now
The timing of Buterin’s address isn’t accidental. Ethereum is navigating a period of surging institutional interest. Traditional finance players are entering the space at an accelerating pace, bringing capital but also bringing the gravitational pull of conventional corporate structures.
Simultaneously, the Layer-2 scaling debate has intensified. Ethereum’s rollup-centric roadmap has produced a thriving ecosystem of Layer-2 networks, but it has also raised legitimate questions about where value accrues, how much trust users place in these intermediary layers, and whether the overall system is actually getting more decentralized or just distributing centralization across more entities.