The Sei Giga Roadmap

The blockchain for trading

Follow progress of Sei's Giga upgrade

Last updated on 5/27/26

Push performance even further and share revised specification for Sei Giga.

Rebuild Sei's execution client to hit Giga-scale throughput on the existing consensus.

Pipeline Execution
Stage parsing, validation, and signature checks ahead of execution to keep executors hot.
Reduce Critical-path Execution
Move receipts, logs, and indexing off the commit path into async pipelines.
Improve Runtime/VM Efficiency
Tighten cache locality and cut allocation churn for stable throughput under mixed workloads.
Deploy Execution Client to Mainnet
Ship the rebuilt client live - v2 throughput today, ready for consensus next.

Replace merkle trees and split hot from cold state to eliminate the write-amplification ceiling.

Live State Reimagining
Swap merkle trees for a flat key-value store with lattice hashes - an order of magnitude of headroom.
Scale Historical State
Embedded DB for hot live state; horizontally scalable storage for the cold archive.
Domain-Optimized Storage
Purpose-built engines (Parquet+DuckDB, LittDB) for receipts, logs, blocks, and transactions.

Stand up Autobahn consensus on testnet, enabling multi-proposer, order-first, asynchronous state, with 200,000 TPS and 400ms finality.

Consensus Whitepaper
Publish the final spec covering Autobahn's multi-proposer model in full.
Autobahn order-first
Finalize transaction ordering before execution so ordering doesn't wait on variable runtime.
Asynchronous State Consensus
Let later blocks assert earlier state commitments so ordering doesn't stall on state agreement.
Operational Reconciliation
Detect and reconcile missing or delayed assertions without breaking deterministic replay.