Sei Network's Giga upgrade targets 200,000 TPS and 400ms finality, aiming to be one of the fastest Layer 1 blockchains.

Sei Labs announced the Giga upgrade, which aims to boost the Sei Network's transaction speed to over 200,000 transactions per second with finality under 400 milliseconds, significantly surpassing current Layer 1 blockchains like Ethereum and Solana. The upgrade features the new Autobahn consensus protocol allowing parallel block proposals and asynchronous execution, promising up to a 40x performance increase from the current 5,000 TPS. The full upgrade, including a transition to a purely EVM-compatible chain, is expected to roll out in phases throughout 2026, with testnets starting in Q1 and potential mainnet launch in the first half of the year. This upgrade could make Sei highly competitive for high-frequency trading and DeFi, offering clear milestones for investors to watch.