Solana news: Sei Network Announces Giga Upgrade Roadmap, Aims to Surpass Solana in Performance

Sei Network's Giga Upgrade: Ambitious Performance Targets
Sei Labs has published a whitepaper detailing the Giga upgrade, which aims to elevate the Sei Network's transaction throughput to over 200,000 transactions per second (TPS) and achieve sub-400 millisecond finality. These figures would place Sei ahead of most Layer 1 blockchains, including Solana, which has a theoretical maximum of around 65,000 TPS but typically achieves lower real-world throughput.
Technical Innovations: Autobahn Consensus and Asynchronous Execution
The Giga upgrade introduces the Autobahn consensus protocol, enabling parallel block proposals by multiple validators. This approach removes bottlenecks found in traditional blockchains, where only one block proposer operates at a time. Additionally, asynchronous execution decouples transaction ordering from processing, allowing for greater efficiency.
- Target throughput: 200,000+ TPS
- Finality: Under 400ms
- 40x performance boost over previous Sei capabilities
Roadmap and EVM Compatibility
Sei's development roadmap is divided into execution, consensus, and storage workstreams. The upgrade is expected to enhance EVM throughput by up to 50 times. The network is transitioning to EVM-only compatibility, simplifying development and positioning Sei as a direct competitor to Ethereum Layer 2s and alternative Layer 1s. The SIP-3 migration, which will complete this transition, is scheduled for mid-2026, with testnet phases beginning in Q1 2026.
Implications for Solana and the UK Blockchain Ecosystem
While Sei's upgrade is not directly related to Solana, its performance targets and technical innovations highlight the increasing competition among high-throughput blockchains. For UK developers, investors, and DeFi builders, these advancements may influence platform selection and encourage further innovation within the Solana ecosystem. The focus on EVM compatibility and high-frequency trading applications is particularly relevant for London's financial technology sector, where low-latency and high-throughput solutions are in demand.
Why This Matters
Sei's Giga upgrade demonstrates the rapid pace of blockchain infrastructure development. As networks like Sei and Solana compete on speed and efficiency, UK-based projects and users benefit from improved options for decentralised finance, trading, and application deployment. Monitoring these trends is essential for staying competitive in the evolving blockchain landscape.



