200K
transactions per second
<250ms
to lock in your trade
99.99%
MEV reduction
Privacy
before your trade goes through
What is Giga?
The Next Generation of Blockchain
Sei Giga is a forthcoming upgrade to the Sei blockchain. Giga is a complete redesign of Sei using frontier MCP consensus and radical new technology. Faster, safer and fairer for users than any blockchain to come before.
Coming soon to testnet
Use cases
Build the Future of Finance on Sei
The smoothest onchain trading experience
Your trades will lock in near instantly, even on the busiest days, with less lost to toxic MEV.
- Near-instant trades
- Fair ordering
- Never drops a trade
Stock trading with no closing bell
Trade stocks onchain 24 hours a day, 7 days a week.
- Open 24/7
- Trade stock tokens or stock perps
- Over 700 assets
Make payments at Giga speed
Up to 200,000 payments per second to any merchant anywhere in the world.
- Near-instant checkout
- Any merchant, anywhere on Earth
- Built for global demand
Fully onchain trading, with leverage
Build and trade perps on Giga's next-generation blockchain architecture.
- Trade with leverage
- Near-instant trades
- Open 24/7
The blockchain for AI agents
Giga will provide a platform for AI agents to trade and make payments around the clock.
- Ideal for AI agents
- Near-instant payments, 24/7
- The most affordable place for agents to pay
Liquidations can't wait
Giga's speed will help lending apps close risky loans in time, so they can let you borrow more.
- Borrow against your assets
- Risky loans closed in time
- Healthier markets
Why Giga
Wall Street's Next Address
Faster
Lock in trades in under 250ms at launch, under 100ms with future upgrades. Designed for 200,000 TPS, to keep up on the busiest days.
Safer
With no toxic MEV and pre-execution privacy, Sei Giga will give users a fairer, more predictable environment to trade in.
More Secure
Sei Giga will provide institutional-grade security, sufficient for even the largest global institutions.
How it works
Built for the Heaviest Trading Days
Roadmap
Already Shipping, Stage by Stage
- Complete
Design and Research
- In progress
Simplifying Sei (SIP-3)
- In progress
New Engine and Storage (Ares and Eidos)
- Coming soon
Consensus Upgrade (Autobahn) on Public Test
- Coming soon
Consensus Upgrade (Autobahn) Goes Live
- Coming soon
Privacy Upgrade (Sedna)
- Coming soon
Next Consensus Upgrade (Hermes)
Sources
Built with Frontier Research and Technology
Consensus
- AutobahnThe peer-reviewed research behind Giga's first consensus upgrade.2024
- AmbulanceResearch into keeping Sei moving when the lead validator is slow.Jun 2026
- HermesThe next consensus upgrade, designed to make Giga even faster.Jul 2026
- SoK: Multiple Concurrent Proposer BlockchainsA map of blockchain designs where many validators propose blocks at once, Giga's included.Oct 2026
Privacy and MEV
- MEV in Multiple Concurrent Proposer BlockchainsThe new kinds of MEV that appear when many validators propose at once, and the rules that reduce them.Nov 2025
- SednaHow the planned upgrade is designed to keep your trade private before it goes through.Dec 2025
- A Mechanism Design Overview of SednaHow Sedna's rewards are designed to stop validators from holding back parts of a trade for an early look.Mar 2026
Fees and incentives
- Slack and Budget Breaking in Threshold Team ProductionHow large a reward needs to be so that delaying a shared task never pays more than finishing it.Jul 2026
- Bandwidth Fee Mechanisms for Certified Transaction DisseminationHow to price the bandwidth that carries transactions to validators before they're ordered.Sep 2026
