By Tom Whitfield

Two of Ethereum's best-known zero-knowledge rollups have diverged sharply in strategy, according to a CryptoSlate report: zkSync is pursuing bank partnerships, while Starknet is weighing a departure from the Ethereum ecosystem altogether.

The report frames the split as a new turn in what it calls Ethereum's "quantum race" — the competition among ZK-based scaling projects to define how institutional capital settles on-chain.

What is zkSync offering banks?

zkSync has positioned itself as infrastructure for regulated financial institutions. Its pitch rests on zk-rollup architecture: transactions bundle off-chain, and a validity proof verifies them on Ethereum. For banks, that design promises throughput gains while keeping settlement anchored to Ethereum's security.

The CryptoSlate account does not name specific banking counterparties, deal sizes, or launch dates. The reporting establishes direction, not signed contracts.

Why would Starknet leave Ethereum?

Starknet, built by StarkWare and secured by STARK proofs, is instead evaluating an exit from Ethereum, the report states. Such a move would mean abandoning the rollup model that posts proofs to Ethereum L1 and operating as a standalone chain with its own settlement.

The report does not specify a timeline, a technical migration path, or a governance vote. It describes the option as under consideration.

What does the split signal?

The divergence tests a core assumption of Ethereum's Layer-2 roadmap: that scaling projects will remain settled on Ethereum rather than fragment into sovereign chains. zkSync's institutional push and Starknet's potential departure represent the two poles of that debate.

Both projects already compete on proof systems, developer tooling, and liquidity. The report suggests institutional demand — not retail activity — will now decide which architecture captures settlement volume.

No figures on total value locked, user counts, or partnership revenue appear in the source material, and none are asserted here.

What comes next

Starknet's decision carries the nearer-term consequence. A formal exit proposal would require community governance, a technical migration plan, and coordination with bridges and wallet providers — each step measurable and dated once announced. zkSync's bank push, by contrast, will surface first as pilot programs with named institutions. Until either project publishes specifics, the CryptoSlate report stands as the primary account of both strategies.