Ethlabs Sees Ethereum Reaching Post-Quantum and AI Readiness in 2027
Key Facts
Ethlabs said Ethereum could reach a post-quantum-ready state, and possibly a post-AI-ready state, during 2027, in a proposal published on the Ethereum Magicians forum. The company described the timeline as ambitious, while calling the post-AI goal possible but not certain. The proposal sets out a suggested path for prioritizing upgrades, focused on securing consensus and providing every user with a quantum-resistant computing path. That remains a vision put forward by Ethlabs, not a date approved by the Ethereum network or its developer governance. The company said the shift to security readiness requires addressing cryptographic risks and strengthening clients against vulnerabilities that advanced AI models may uncover.
In the phase Ethlabs calls “quantum- and AI-resistant,” the network would continue operating at the expanded capacity enabled by Glamsterdam, with quantum-resistant consensus and a resistant computing path for every user. The company says the network could operate at lower capacity if current cryptography is broken earlier than expected, making the provision of basic protection paths a priority in its vision. Ethlabs places full-capacity operation of quantum-resistant transactions and blobs in the “pqai-scaled” phase, describing it as a stretch goal for 2027 and after Hegotá. This distinction means the proposal separates providing basic protection for users from moving the full capacity for transactions and data to the new cryptography. The company has not yet settled on the final design for quantum-resistant consensus, saying the choice between adapting Gasper or adopting separate consensus remains an open question requiring further evaluation.
Ethlabs’ definition of post-AI readiness combines cryptography based on limited assumptions with clients able to withstand advanced models that find software flaws at scale. The company wrote that “clients are hardened against advanced models that discover vulnerabilities at scale.” It says formal verification and client diversity are part of the response to these risks, alongside updating cryptography to address quantum computing capabilities. In an example cited by Ethlabs, it said OpenAI found and fixed about 1,000 vulnerabilities in Linux using its advanced internal model. The example is based on what the company said in its proposal, which linked the acceleration of AI-assisted software auditing to the need to strengthen network clients.
The plan reorders upgrade elements as part of a trade-off between security development and continued improvements to network speed. Ethlabs says it will withdraw support for the Quick Slots proposal from Hegotá and direct its resources to pqai27, while continuing work toward Quick Slots in 2028. Quick Slots aimed to shorten block times, but the proposal prioritizes the security path the company considers necessary for its proposed readiness. At the same time, Ethlabs said Glamsterdam would proceed as planned and that the expansion it enables would continue afterward. It added that Frames is on the critical path for the pqai27 proposal, while rollup transactions can use calldata as a fallback path as long as blobs are not quantum-resistant, at the cost of higher inclusion fees.
The 2027 proposal comes ahead of the broader goal set by the Ethereum Foundation’s protocol group to achieve quantum resistance across the execution, consensus and data layers by December 2029. The foundation said reaching the L* level from Glamsterdam by that deadline would require an average of 7.2 months per upgrade, while a minimum level of readiness at J* could be completed at a pace of one upgrade every 12 months. Full readiness, according to the July roadmap, is five major upgrades away from Glamsterdam. The foundation also said Ethereum should plan for the possibility of a quantum break occurring as early as 2030, describing that assumption as deliberately conservative. The protocol group is scheduled to reassess quantum computing progress with advice from outside experts in January 2027.
Ethereum uses ECDSA signatures for transactions, BLS signatures for consensus and KZG commitments in its scaling roadmap, according to the Ethereum.org page. The page says research published by Google Quantum AI in March 2026 estimated that breaking 256-bit elliptic curve cryptography could require about 1,200 logical qubits. By comparison, current quantum hardware operates with a few thousand noisy physical qubits, while a logical qubit requires a large number of physical qubits. Ethereum.org says users do not need to take any action now and their funds are currently safe, with wallets expected to guide them through a transition to quantum-resistant signatures in the future. In EL7 data, ETH/USD closed at $2,238.01 on November 5, then at $2,056.36 on November 11; the proposal did not link this price move to its announcement.